On this page
UnderstandWhat it is, what people ask, how far this page goes
Natural inorganic gem materials · Rock / mineral aggregate · Natural identity; treatment status unknown
Chicken-blood Stone
A carving stone whose red parts consist of cinnabar-bearing minerals in a clay-mineral matrix; its basic name in Table A.2 of GB/T 16552—2017 is “chicken-blood stone”. Mercury risk must be checked. This page compares how the major standards and institutions name it, what must be disclosed when selling it, whether it can be worn every day, how it is treated and identified, and which source each conclusion comes from.
Price, rarity and origin are outside the scope of this wiki.
What this page can answer
This page covers
- How Chicken-blood Stone forms and what gives its colourFormation setting, process and timescale, each finding graded and sourced
- How to identify Chicken-blood StoneHow far lab testing can go
- Treatments and enhancements of Chicken-blood Stone3 registered treatments: status, stability, how common they are and identification leads
- Caring for and wearing Chicken-blood StoneDurability indicators and wearing advice
- Hardness and density of Chicken-blood StoneEach value with its source and check date
- Chicken-blood Stone in English, Chinese and Japanese; national standard namesNames in four languages, the GB/T standard name and the suggested listing name; and: Has any of GIA, FTC, CIBJO or Gem-A put a name for it on record here?
- Name origin and history of Chicken-blood StoneWhere the name comes from
- Listing and disclosing Chicken-blood StoneThe listing name to use; what must be disclosed before sale
- Standard clauses that define Chicken-blood StoneWhich clause defines it, each cross-checked
What we cannot conclude
- Whether one particular bead is natural, treated or synthetic — only a laboratory report can settle that.
- Geographic origin, unless an origin report accompanies the item.
- Price, rarity or investment value: this wiki covers naming and disclosure only.
Material research: formation, causes and history
What authoritative sources say about how this material forms, what causes its colour and optical effects, where its name comes from and how people have used it. Each statement carries an evidence grade and its sources; it describes the material in general, not any specific piece.
How it forms
Jixue stone, the "chicken-blood stone", is among the Chinese carving and seal stones; it is a rock — a mineral aggregate — whose composition changes with variety rather than a single species. Cinnabar (HgS) may be present in its red areas: hydrothermal solutions at low temperature deposit cinnabar within veins, and the mineral can appear in host rocks of sedimentary, igneous or metamorphic type. The groundmass is made of clay minerals, for instance the kaolinite-group pair dickite and kaolinite; these usually result from hydrothermal alteration of aluminosilicate minerals, though an authigenic sedimentary origin is also possible. Pyrophyllite, too, occurs in bedded deposits within schistose metamorphic rocks as well as along hydrothermal veins. NOTE: whether cinnabar is present or absent cannot on its own certify this stone's authenticity, and this record refrains from judging authenticity by the "blood" appearance.
Scope: Applies to the composition and genetic overview of the Chinese seal stone "chicken-blood stone" as a rock aggregate (as reflected by sources on cinnabar and clay minerals); composition varies by variety, and cinnabar is not used as a criterion of authenticity.
Sources RRUFF Cinnabar · RRUFF Dickite · RRUFF Kaolinite +1
Where it forms
A vein environment of low-temperature hydrothermal origin; cinnabar is deposited from such solutions within veins, hosted by rocks that may be sedimentary, igneous or metamorphic.
Sources RRUFF Cinnabar · RRUFF Dickite · RRUFF Kaolinite
A clay-mineral matrix in a hydrothermal-alteration setting (dickite/kaolinite), also authigenic-sedimentary; pyrophyllite occurs in hydrothermal veins and in bedded schistose-metamorphic deposits.
Sources RRUFF Cinnabar · RRUFF Dickite · RRUFF Kaolinite
How it forms, step by step
Cool hydrothermal fluids travel through veins, depositing cinnabar (HgS) within the host rocks.
Sources RRUFF Cinnabar · RRUFF Dickite · RRUFF Kaolinite
Aluminosilicate minerals are altered hydrothermally (or by weathering) into a clay-mineral matrix of dickite/kaolinite.
Sources RRUFF Cinnabar · RRUFF Dickite · RRUFF Kaolinite
Pyrophyllite and related phases may form in hydrothermal veins or in bedded schistose-metamorphic deposits.
Sources RRUFF Cinnabar · RRUFF Dickite · RRUFF Kaolinite
Cinnabar combines with the clay-mineral matrix to form a rock aggregate with red "blood" patches.
Sources RRUFF Cinnabar · RRUFF Dickite · RRUFF Kaolinite
Link to appearance
The red colour comes from the cinnabar (HgS) it may contain; NOTE: the presence of cinnabar must not be used as an authenticity criterion, and appearance should not be used alone for a verdict or valuation.
Sources RRUFF Cinnabar · RRUFF Pyrophyllite
Timescale
The sources give no absolute age for the formation of the stone or its cinnabar.
Sources RRUFF Cinnabar · RRUFF Dickite · RRUFF Kaolinite
Related base materials
- Cinnabar (HgS): Mineral phase that the red portions may contain
- Kaolinite-group minerals (dickite/kaolinite) and pyrophyllite: Clay mineral component of the matrix
Supporting findings
Veins carrying low-temperature hydrothermal solutions are where cinnabar develops; sedimentary, igneous and metamorphic rocks may all serve as its host.
Evidence grade BScope: Applies to the mineral cinnabar; not the whole stone's genesis.
Sources RRUFF Cinnabar
The matrix of Jixue stone contains kaolinite-group minerals (dickite/kaolinite), commonly formed by hydrothermal alteration of aluminosilicate minerals (also authigenic-sedimentary).
Evidence grade BScope: Applies to dickite/kaolinite formation; a matrix clay source, not the whole stone.
Sources RRUFF Dickite · RRUFF Kaolinite
Recorded localities
Authoritative sources list the localities below; the list is not exhaustive.
Asia
- Yuyan Mountain, Changhua, Lin'an District, Hangzhou, Zhejiang, China
Sources Mindat: Chicken-Blood Stone
- Balin Stone Mine, Bairin Right Banner, Chifeng, Inner Mongolia, China
Sources Mindat: Chicken-Blood Stone
These are localities recorded by authoritative sources, not an origin finding for any individual piece. The CIBJO Gemstone Book (2022, §4.2.3) says a place of origin names where a gem was mined or harvested, is a matter of opinion, does not imply a level of quality, and that cutting, processing or exporting centres must not be used to imply origin. See how far testing can go on this page, the origin determination guide and the overview of recorded localities.
Where the name comes from
The cited sources give no etymology for the name jixue stone; the origins they provide belong to its parent minerals. Cinnabar traces back through Medieval Latin cinnabaris to the Persian zinjifrah, which seems to mean 'dragon's blood' and refers to the red colour. Dickite honours Allan Brugh Dick (1833–1926), a Scottish metallurgical chemist who was the first to describe the species. Kaolinite derives from a corruption of Kauling, a Chinese name meaning 'high ridge', after a Chinese occurrence. Pyrophyllite joins Greek words for fire and leaf, alluding to how it exfoliates into fan shapes on heating. None of these explains the trade name itself.
Evidence grade BScope: The etymology explains the origin of a name only; it does not attest composition, locality, naturalness or treatment, and here belongs to the parent mineral rather than to the trade name itself.
Sources RRUFF Cinnabar · RRUFF Dickite · RRUFF Kaolinite +1
Other research findings
Cinnabar is essentially pure HgS in chemical composition.
Evidence grade BScope: Describes cinnabar's chemistry; not the stone's matrix.
Sources RRUFF Cinnabar
Jixue stone is a rock (a mineral aggregate) with variety-dependent composition, not a single mineral species; the presence of cinnabar is not an authenticity criterion for the stone.
Evidence grade CScope: Defines identity and the authenticity boundary; the cited authoritative sources define neither Jixue stone as a species nor an authenticity criterion.
Sources RRUFF Cinnabar · RRUFF Pyrophyllite
Limits of this research
- Research status: No authoritative source specific to this material was found; findings come from the parent material or are marked as gaps
- "Jixue stone" is a Chinese seal/carving-stone name with no mineralogical definition in the cited authoritative sources, so it is treated as a rock (mineral aggregate) and flagged as lacking an authoritative definition.
- Red line: the presence of cinnabar must not be used as an authenticity criterion; this record states only mineralogical facts about cinnabar and clay minerals and makes no authenticity claim.
- Composition varies by variety and no single-species claim is made; no specific deposit source was available.
Methodology
- Origin determination and its limits
- Quality grading and value factors
- How gemmology became a technical discipline
Evidence grades
- A
- Standards bodies, government geological surveys, peer-reviewed research and museum records
- B
- Institutional educational material
- C
- Specialist databases or cautious readings
A statement is never graded above its strongest source.
This section is LumaLark's own factual restatement of public authoritative sources, credited item by item; it contains no verbatim excerpts, images or third-party logos.
DecideListing name, disclosure, care and treatments
- Suggested listing name
- Chicken-blood Stone (confirmed by testing)
GB/T 16552—2017 Table A.2 “Chicken-blood Stone” · CIBJO Gemmological Laboratories Book 2024 7.1.4
Construction or treatment status
Natural identity; treatment status unknown
Treatments recorded for this material: Filled / Fracture-filled, Dyed, Coated
Related:Disclosure and cautions
This page cannot answer
Natural? · Origin · Price
A lab report settles these; this wiki covers naming and disclosure.
Related:What this page can answer
Answer at a glance
"Chicken-blood Stone" is a market name rather than a mineral species name; before using it, verify: Laboratory identification required before the name is used.
Evidence
- GB/T · Table A.2, row 鸡血石 (Chicken-blood Stone)
What this means for you
Before buying, check the recommended listing name "Chicken-blood Stone (confirmed by testing)" and any disclosed treatments on this page, and ask the seller for a grading report if in doubt.
Known uncertainty
- This entry's exact material identity is not fully settled.
- See “Disclosure and cautions” above
- Last reviewed
- 2026-09-01
Trade-name ruling
- Laboratory identification required before the name is used.
- Suggested listing name
- Chicken-blood Stone (confirmed by testing)
Care and wear
No institutional care guidance is registered for this material yet; below are its durability indicators and general guidance.
Durability and wearing
Numbers in curly braces, such as {111}, are crystallographic face symbols (Miller indices): each marks a set of crystal faces or cleavage planes. They are reproduced as written in the cited source.
Toughness
Slightly sectile
Daily wear
Its red component is cinnabar (HgS), only Mohs 2–2.5, with perfect {1010} cleavage and slightly sectile tenacity, so it is very soft, easily scratched and splits along cleavage; it is a display/seal-stone material rather than daily-wear.
Care
Dust with a dry soft cloth or soft brush and avoid rubbing and soaking; never scrape with hard objects, avoid ultrasonic/steam cleaning, and avoid heating (basis: source records Mohs 2–2.5, perfect cleavage and slightly sectile tenacity).
General guidance: LumaLark's general guidance inferred from the material's properties (hardness, toughness, cleavage); not text from the cited source, and not a guarantee for any specific piece.
Scope: This field describes the general physical properties of jixue stone as a material; it makes no durability or safety promise for any specific finished product. Durability of treated (e.g. filled, dyed, coated) or assembled/composite pieces must be assessed separately for the individual item.
Treatments and identification leads
Registered treatmentsThe treatments registered for Chicken-blood Stone are dyeing, filling and coating. Values not givenDyeing has the status colour treated, and filling and coating both have the status treated; the stability and prevalence of dyeing, filling and coating are all registered as “—”, meaning the cited source gives no value, not “none”. Identification cluesAs identification leads: with dyeing, cinnabar powder or red dye may be seen adhering to the surface to strengthen the “blood” colour, the dye particles have no fixed shape and are less lustrous than cinnabar, they may show unusual fluorescence under UV light, and composition analysers such as XRF usually find no Hg in red dye; filled areas have a lustre different from the host and contain bubbles, often fluoresce differently under UV light, and show the filler's characteristic absorption bands in the infrared spectrum; coated surfaces show an abnormal lustre and local peeling of the film, refractive index readings may be abnormal, infrared and Raman spectra can detect the coating's characteristic peaks, and where cinnabar powder or red dye is mixed into the coating, it is judged by the identification features for dyeing.
This table scrolls sideways on narrow screens.
| Treatment | Market frequency (CIBJO) | Stability (CIBJO) | GB/T 16552 category | JJA/AGL listing | Identification leads |
|---|---|---|---|---|---|
| dyeingStatus: colour treated | — | — | Treatment | — | See identification leads |
| fillingStatus: treated | — | — | Graded — see §5.4.1, Table 1 | — | See identification leads |
| coatingStatus: treated | — | — | Treatment | — | See identification leads |
Where each treatment acts (schematics): Dyed · Filled / Fracture-filled · Coated
“—” means the cited source gives no value for that item, not “none”. Source: GB/T 16553—2017; GB/T 16552—2017 Table B.1
Whether a treatment has to show in the name differs between the two rule sets (this site’s paraphrase):
- GB/T 16552—2017: a method classed as treatment has to be stated in the name itself — the method put before the name, or added in brackets after it; a method classed as optimization does not need to appear in the name, though one marked “Optimization (annotation required)” still has to be noted in the quality documents. Source: §5.4.2.1 a), b); §5.4.2.2 a)
- CIBJO Gemstone Book 2022: no longer splits treatments into ones that need specific disclosure and ones that need only general disclosure: every treatment is to be disclosed, and the seller tells the buyer which treatment was used and what special care it calls for. Source: §4.2.5 Note 2, §4.2.5.1, pp.14–15
What this table covers
What this page can give
- Registered treatments, their stability and how often they occur (see the table above)
- Identification leads for each treatment, for use when sending a stone for testing
VerifyNames, standards, technical facts, clauses and sources
Names
Standard and listing namesThe Chinese formal name for Chicken-blood Stone is listed in GB/T 16552—2017 Table A.2; the suggested listing name is Chicken-blood Stone (confirmed by testing). Names in four languagesThe four-language names cover Simplified Chinese, Traditional Chinese, English (Chicken-blood Stone) and Japanese. The mineralogical description is a Chinese carving stone with red parts containing cinnabar in a matrix of clay minerals. Institution usageOn authority wording, the FTC and CIBJO texts have no wording for Chicken-blood Stone (checked); the wording of GIA and Gem-A is unchecked; the entry's own English name, Chicken-blood Stone, does not represent those bodies' position. Japanese namesThe GSJ (Japan) wording is not yet verified by this site; the entry's own Japanese name is shown.
- GSJ (Japan) formal name
- 鶏血石 (not yet checked for this body — the entry's own Japanese name is shown)
- Chinese formal name
- 鸡血石 (GB/T 16552—2017 Table A.2)
- Mineralogical name
- Chinese carving-stone material with cinnabar-bearing red portions and clay-mineral matrix
Four-language names
- 简体中文
- 鸡血石
- 繁體中文
- 雞血石
- English
- Chicken-blood Stone
- 日本語
- 鶏血石
See also: Misleading and prohibited trade names · Supplementary name index
Classification
- Origin
- Natural materials
- Material domain
- Natural inorganic gem materials
- Browsing family
- Rocks and polymineral aggregates
- Identity tier
- Rock / mineral aggregate
- Mineral chemical class
- Mixed / composition-dependent
- Construction or treatment status
- Natural identity; treatment status unknown
Treatments listed by standards
The enhancement and treatment methods listed for Chicken-blood Stone in its own entry in GB/T 16552—2017 Annex B, Table B.1 are: filling, which improves or changes durability and appearance, with the category marked as graded; dyeing, which improves colour, categorised as a treatment; and coating, which improves or changes lustre, colour and other aspects of appearance, categorised as a treatment. The notes to Table B.1 and the grade definitions are on the Gem treatments page.
GB/T 16552-2017, Annex B, Table B.1
Table B.1, row “Chicken-blood Stone” (p.17):
This table scrolls sideways on narrow screens.
| Method | Effect | Category |
|---|---|---|
| Filling | Improves or changes durability and appearance | Graded — see §5.4.1, Table 1 |
| Dyeing | Improves colour | Treatment |
| Coating | Improves or changes lustre, colour and other aspects of appearance | Treatment |
What Table B.1 is, and how the “see 5.4.1” grades are defined: see the GB/T 16552: optimization vs treatment page.
What it is and how it's identified
The material facts recorded for Chicken-blood Stone are: chemical composition varies with the kinds and proportions of the constituent minerals, and the cinnabar it contains is HgS; structure is a crystalline aggregate, usually dense and massive; Mohs hardness 2.5–4, and this site notes that hardness alone is not enough to judge durability; cleavage is usually not seen on an aggregate; density 2.53–2.74 g/cm³; optic character anisotropic aggregate; birefringence not measurable on an aggregate. When untreated, pleochroism of Chicken-blood Stone is not measurable on an aggregate, fluorescence is usually none, and the lustre (as a quality factor) is greasy or waxy.
Registered material facts
Each row carries its own source and check date and can be cited on its own; “—” means the cited source gives no value, not “none”.
Definition
Chicken-blood Stone — composition (chemistry): determined by the component minerals and their proportions; the cinnabar present is HgS.
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Structure
Chicken-blood Stone — structure (overall): crystalline aggregate, typically compact and massive
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Durability
Chicken-blood Stone — Mohs hardness: 2.5–4
GB/T 16553—2017
Reference points on this site: Talc 1–3, Fluorite 4, Apatite 5–5.5, Orthoclase 6–6.5, Topaz 8, Diamond 10 (Source: GB/T 16553—2017); Gypsum 1.5–2, Calcite 3, Quartz 7 (Source: Handbook of Mineralogy); Corundum 9 (Source: GIA Gem Encyclopedia (care guide))
- Does this standard apply
- applies to this entry
- General note
- hardness only, not durability
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Chicken-blood Stone — cleavage: generally not seen on an aggregate
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Physical properties
Chicken-blood Stone — density: 2.53–2.74 g/cm³
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Optical
Chicken-blood Stone — optic character: anisotropic aggregate
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Chicken-blood Stone — birefringence: not measurable on an aggregate
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Chicken-blood Stone — pleochroism: not measurable on an aggregate
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Chicken-blood Stone — fluorescence (overall): generally none
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Chicken-blood Stone — spectrum (UV-visible): non-characteristic
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Chicken-blood Stone — spectrum (infrared): Which bands appear depends on the material of the “ground”. A clay-mineral ground gives mid-IR fingerprint bands from Si-O and similar groups in the clay minerals, plus functional-group-region bands from OH vibration; an alunite ground gives alunite's own diagnostic bands in the mid-IR. Cinnabar shows its diagnostic bands in the far IR.
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-22
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (locator checked 2026-09-22)
- Fact checked on
- 2026-09-22
Chicken-blood Stone — magnification: the red "blood" consists of fine particles or fine grains, scattered through the "ground" as specks or patches, the "ground" ranges in structure from cryptocrystalline to fine-grained, compact massive structure.
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Chicken-blood Stone — body colour: made up of two parts, the "blood" and the "ground". The blood is bright red, vermilion, dark red or another red, determined by the colour, content, grain size and distribution of its cinnabar, and turns black on oxidation.
The ground is commonly white, greyish white, greyish yellowish white, greyish yellow, brownish yellow and similar colours.
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
- Qualification
In chapter 5 of GB/T 16553—2017, the colour entries of Shoushan Stone, Rhodochrosite, Brucite and other variety clauses also name red or a reddish colour.
- General note
- colour alone is not identity
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Quality factors
Chicken-blood Stone — quality factor (lustre): greasy or waxy
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Each row's “Source & check” expands to the full source; the date beside it is the fact check date.
Testing and market
The identification leads for treated Chicken-blood Stone are cited from GB/T 16553—2017, which can only be followed as a reference for this entry and does not govern it directly. In dyed Chicken-blood Stone, magnification shows cinnabar powder or a red dye mixed with an adhesive attached to the surface to add "blood" colour, the "blood" colour appearing to float in a transparent layer, with dye particles of no fixed shape and less lustrous than cinnabar; the dye may show distinctive fluorescence under long-wave and short-wave UV; testing the red dye with a composition analyser such as XRF usually finds no Hg. In filled Chicken-blood Stone, the lustre of filled areas differs from the host and gas bubbles occur in the filling; filled areas often fluoresce differently from the host under long-wave and short-wave UV; the infrared spectrum shows the characteristic absorption bands of the filler; and luminescence imaging instruments can show how the filler is distributed. In coated Chicken-blood Stone, the surface lustre is abnormal, the coating peels off in places, refractive index readings may be abnormal, and infrared and Raman spectra can detect the characteristic peaks of the coating; if the coating contains cinnabar powder or red dye, judge it by the identification features for dyeing.
How far testing can go
Chicken-blood Stone that has undergone dyeing can be identified by the following features: Under magnification cinnabar powder or a red dye mixed with an adhesive is seen attached to the surface to add blood colour, and that blood colour floats in the transparent layer; the red dye particles are amorphous and less lustrous than cinnabar; long- and short-wave UV can make the dye fluoresce in an unusual way; compositional analysis (XRF and similar) of the red dye mostly finds no Hg.
GB/T 16553—2017
- Treatment state
- colour treated
- Does this standard apply
- can be followed as a reference only
- Treatment
- dyeing
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (dyeing) (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Chicken-blood Stone that has undergone filling can be identified by the following features: Under magnification the surface luster of the filled part differs from the host jade and gas bubbles show in the filled area; under long- and short-wave UV the filled part mostly fluoresces differently from the host jade; infrared spectra show characteristic absorption bands of the filler; luminescence imaging (UV fluorescence viewer and similar) shows how the filler is distributed.
GB/T 16553—2017
- Treatment state
- treated
- Does this standard apply
- can be followed as a reference only
- Treatment
- filling
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (filling) (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Chicken-blood Stone that has undergone coating can be identified by the following features: Under magnification the surface luster is abnormal and the film can be seen peeling off in places; refractive index readings may be abnormal; infrared and Raman spectra show characteristic peaks of the film.
If cinnabar powder or a red dye is mixed into the film, the identifying features are the same as for dyeing.
GB/T 16553—2017
- Treatment state
- treated
- Does this standard apply
- can be followed as a reference only
- Treatment
- coating
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.30 (coating) (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Each row's “Source & check” expands to the full source; the date beside it is the fact check date.
Clause-level definitions
In the clause-level definitions of GB/T 16552-2017 Annex A, Chicken-blood Stone is registered under the entry name Chicken-blood Stone, defined as a Chinese carving stone containing cinnabar-red portions in a matrix of clay minerals. Cross-check result: listed directly in GB/T; not found under a standalone heading of the same name in CIBJO.
This table scrolls sideways on narrow screens.
| Term | Clause | Definition | Cross-check |
|---|---|---|---|
| Chicken-blood Stone | GB/T 16552-2017 Annex A | Chinese carving-stone material with cinnabar-bearing red portions and clay-mineral matrix | Listed directly by GB/T; CIBJO carries no standalone entry under the same name. |
Evidence and sources
Authority basis and clause sources
Sources
- CIBJO – The World Jewellery Confederation. Gemmological Laboratories Book (Blue Book), Gemmological Commission 2024-1.
- CIBJO – The World Jewellery Confederation. The Gemstone Book (Blue Book), 2022.
- SAMR / SAC (China). GB/T 16552—2017 Gems — Nomenclature.
- RRUFF Project, in partnership with the IMA – International Mineralogical Association. IMA Mineral List.
- Geological Survey of Japan, AIST (Japan). Museum mineral specimens, browse by classification.
Further reading
Related entries and topic cluster
Parent entry and related pages on this site. Rows marked “Planned” are suggested new content and have no link yet.
This table scrolls sideways on narrow screens.
| Page | Content | Status |
|---|---|---|
| Browsing family | Rocks and polymineral aggregates | Live |
| Treatments recorded for this material | Filled / Fracture-filled, Dyed, Coated | Live |
| Related articles | To be added (placeholder) | Planned |
Who maintains this page
The material facts in the Chicken-blood Stone entry are maintained by the LumaLark wiki and matched one by one to the standard clauses or institutional sources they cite: every fact carries its source (with a clause or page locator) and a check date, so it can be traced back to the original; clause-level definitions also carry a cross-check result. The entry exists so that buyers and sellers can check naming, disclosure and material facts item by item.