On this page
UnderstandWhat it is, what people ask, how far this page goes
Natural inorganic gem materials · Trade name: colour / appearance variety · Natural identity; treatment status unknown
Blue Lace Agate
A trade name for pale blue banded Chalcedony; the name describes only colour and pattern, and origin and any dyeing must be tested separately. 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 Blue Lace Agate forms and what gives its colourFormation setting, process and timescale; where its colour and optical effects come from, each finding graded and sourced
- How to identify Blue Lace AgateIdentification points from the research literature; how far lab testing can go
- Treatments and enhancements of Blue Lace AgateThe enhancements and treatments the GB/T and JJA/AGL tables list
- Hardness, density and refractive index of Blue Lace AgateEach value with its source and check date
- Blue Lace Agate 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?
- Listing and disclosing Blue Lace AgateThe listing name to use; what must be disclosed before sale
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
Blue lace agate is a trade name for chalcedony (banded agate) with pale blue/blue-white bands, whose banding genesis follows agate: voids in the rock are filled cyclically from the rim toward the centre by silica-rich fluids, the silica precipitating layer by layer as fibrous microcrystalline quartz; band number, width and pattern depend on silica concentration, temperature, pressure and the timing of fluid influxes. Its blue colour has two origins, natural and artificial, which must be distinguished: natural blue can come from trace colouring elements (e.g. a bluish green colour produced by chromium and nickel) or from copper-bearing chrysocolla micro-inclusions (Cu2+); while much blue chalcedony on the market is dyed with copper salts to imitate or enhance colour, the blue also coming from Cu2+ but with copper concentrated in the outer layer and along fractures, which serves as evidence of dyeing. In addition, dyed blue chalcedony can resemble blue pectolite (Larimar) and must be separated using refractive index and specific gravity.
Scope: Used to explain the filling origin of pale blue banded chalcedony, and to distinguish natural causes of its blue colour (trace colouring elements or copper-bearing chrysocolla inclusions) from artificial dyeing.
Sources G&G Fall 2013 · G&G Summer 2020 · G&G Winter 2015 +1
- Agates from Morocco: Gemological Characteristics and Proposed Origin (Gems & Gemology, Fall 2013, Vol. 49, No. 3)
- Quench-Crackled Dyed Blue Chalcedony Resembling Larimar (Gems & Gemology, Summer 2020, Vol. 56, No. 2, Lab Notes)
- A New Natural-Color Bluish Green Chalcedony (Gems & Gemology, Winter 2015, Vol. 51, No. 4)
- Dyed Chalcedony Imitation of Chrysocolla-in-Chalcedony (Gems & Gemology, Spring 2020, Vol. 56, No. 1)
Where it forms
Voids and vesicles in volcanic rock (geodes, vugs) and fissures in sedimentary rocks, where silica-rich fluids fill them cyclically to form banded chalcedony.
Sources G&G Fall 2013 · G&G Spring 2020 · G&G Summer 2020
- Agates from Morocco: Gemological Characteristics and Proposed Origin (Gems & Gemology, Fall 2013, Vol. 49, No. 3)
- Dyed Chalcedony Imitation of Chrysocolla-in-Chalcedony (Gems & Gemology, Spring 2020, Vol. 56, No. 1)
- Quench-Crackled Dyed Blue Chalcedony Resembling Larimar (Gems & Gemology, Summer 2020, Vol. 56, No. 2, Lab Notes)
Fluid/host settings bearing trace colouring elements or copper-bearing mineral inclusions, which can supply natural blue colour.
Sources G&G Winter 2015 · G&G Spring 2020 · G&G Fall 2013
- A New Natural-Color Bluish Green Chalcedony (Gems & Gemology, Winter 2015, Vol. 51, No. 4)
- Dyed Chalcedony Imitation of Chrysocolla-in-Chalcedony (Gems & Gemology, Spring 2020, Vol. 56, No. 1)
- Agates from Morocco: Gemological Characteristics and Proposed Origin (Gems & Gemology, Fall 2013, Vol. 49, No. 3)
Post-formation treatment setting (commercial): copper-salt dye baths concentrate blue in the outer layer and along fractures.
Sources G&G Spring 2020 · G&G Summer 2020 · G&G Fall 2013
- Dyed Chalcedony Imitation of Chrysocolla-in-Chalcedony (Gems & Gemology, Spring 2020, Vol. 56, No. 1)
- Quench-Crackled Dyed Blue Chalcedony Resembling Larimar (Gems & Gemology, Summer 2020, Vol. 56, No. 2, Lab Notes)
- Agates from Morocco: Gemological Characteristics and Proposed Origin (Gems & Gemology, Fall 2013, Vol. 49, No. 3)
How it forms, step by step
Silica-rich fluids fill a rock void cyclically from rim to centre, precipitating fibrous microcrystalline quartz layer by layer to form bands.
Sources G&G Fall 2013 · G&G Spring 2020 · G&G Summer 2020
- Agates from Morocco: Gemological Characteristics and Proposed Origin (Gems & Gemology, Fall 2013, Vol. 49, No. 3)
- Dyed Chalcedony Imitation of Chrysocolla-in-Chalcedony (Gems & Gemology, Spring 2020, Vol. 56, No. 1)
- Quench-Crackled Dyed Blue Chalcedony Resembling Larimar (Gems & Gemology, Summer 2020, Vol. 56, No. 2, Lab Notes)
Natural blue may come from trace colouring elements (chromium, nickel) or from copper-bearing chrysocolla micro-inclusions (Cu2+).
Sources G&G Winter 2015 · G&G Spring 2020 · G&G Summer 2020
- A New Natural-Color Bluish Green Chalcedony (Gems & Gemology, Winter 2015, Vol. 51, No. 4)
- Dyed Chalcedony Imitation of Chrysocolla-in-Chalcedony (Gems & Gemology, Spring 2020, Vol. 56, No. 1)
- Quench-Crackled Dyed Blue Chalcedony Resembling Larimar (Gems & Gemology, Summer 2020, Vol. 56, No. 2, Lab Notes)
Commercially blue chalcedony is often dyed with copper salts: the material is soaked in a dye bath, copper penetrates the outer layer and fractures, and the blue decreases inward.
Dyed blue chalcedony can resemble Larimar (blue pectolite) and must be separated using refractive index and specific gravity.
Link to appearance
Translucent banded chalcedony from pale blue to blue-white; the blue may be natural (trace elements or copper-bearing inclusions) or introduced by copper-salt dyeing, in which the blue concentrates in the outer layer and along fractures.
Sources G&G Spring 2020 · G&G Summer 2020 · G&G Winter 2015
- Dyed Chalcedony Imitation of Chrysocolla-in-Chalcedony (Gems & Gemology, Spring 2020, Vol. 56, No. 1)
- Quench-Crackled Dyed Blue Chalcedony Resembling Larimar (Gems & Gemology, Summer 2020, Vol. 56, No. 2, Lab Notes)
- A New Natural-Color Bluish Green Chalcedony (Gems & Gemology, Winter 2015, Vol. 51, No. 4)
Timescale
Natural banded chalcedony crystallization took millions of years (Sidi Rahal case); dyeing is a rapid artificial treatment outside the natural timescale.
Sources G&G Fall 2013 · G&G Winter 2015 · G&G Spring 2020
- Agates from Morocco: Gemological Characteristics and Proposed Origin (Gems & Gemology, Fall 2013, Vol. 49, No. 3)
- A New Natural-Color Bluish Green Chalcedony (Gems & Gemology, Winter 2015, Vol. 51, No. 4)
- Dyed Chalcedony Imitation of Chrysocolla-in-Chalcedony (Gems & Gemology, Spring 2020, Vol. 56, No. 1)
Related base materials
- Agate: banded form | Blue lace agate is a commercial name for chalcedony (agate) with pale blue bands
- Chalcedony: mineral-base | Composed of microcrystalline quartz (chalcedony)
Supporting findings
Blue lace agate is chalcedony (banded agate) with pale blue bands, formed as silica-rich fluids filled a rock void cyclically from rim to centre, precipitating layer by layer.
Evidence grade AScope: Describes banded-chalcedony filling; the 'blue lace' naming and locality details are not defined in the cited source.
Causes of colour and optical effects
Chalcedony's blue colour can be natural: produced by trace colouring elements such as chromium and nickel, or by copper-bearing chrysocolla micro-inclusions (Cu2+).
Evidence grade AScope: Natural blue may have different mechanisms; a given specimen requires spectroscopic/chemical analysis and cannot be assumed from appearance.
How it is identified
For blue-lace agate, colour and banding by themselves do not reveal whether the hue is natural or produced by dyeing or heating, so visual appearance cannot settle naturalness or treatment; a trustworthy identification and any treatment ruling call for instrumental examination at a qualified gem laboratory, and this entry is no basis for self-testing.
Evidence grade AScope: Appearance cannot replace identification; naturalness, dyeing or heat treatment must be determined at a qualified gem laboratory, and this entry is not a self-testing basis.
Sources G&G Summer 2014 · CIBJO Gemstone Book 2022
Other research findings
Blue chalcedony is commonly dyed with copper salts, the blue coming from Cu2+; in dyed stones copper concentrates in the outer layer and along fractures and decreases inward, which can identify dyeing.
Evidence grade AScope: The copper-dyeing evidence pertains to the tested samples; applicability to other dyes and colours requires separate verification.
Dyed blue chalcedony can resemble Larimar (blue pectolite, whose blue is caused by Cu2+ in its structure) and must be separated using refractive index and specific gravity.
Evidence grade AScope: Concerns the studied Larimar-like dyed blue chalcedony; other look-alikes are not covered.
Limits of this research
- Research status: Formation, occurrence or other material-specific findings found in authoritative sources
- The authoritative sources do not specifically discuss 'blue lace agate'; its banding is extrapolated from agate studies, and natural blue has two different mechanisms requiring specimen testing.
- The name 'blue lace agate' and its localities (e.g. Namibia) are not defined in the cited sources.
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
- Blue Lace Agate
GB/T 16552—2017 5.1.1 c)
Construction or treatment status
Natural identity; treatment status unknown
Treatments recorded for this material: Heated / Heat-treated (via parent material), Filled / Fracture-filled (via parent material), Dyed (via parent material)
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
"Blue Lace Agate" is a market name rather than a mineral species name; before using it, verify: Industry-wide term that does not denote a single species.
What this means for you
Before buying, check the recommended listing name "Blue Lace Agate" 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
- Industry-wide term that does not denote a single species.
- Suggested listing name
- Blue Lace Agate
Care and wear
No care facts are recorded for this entry itself. Its parent material has care records: see Quartz.
Treatments and identification leads
One row per treatment, with three standards side by side: how often it occurs and how stable it is (CIBJO), its category in GB/T 16552—2017 Table B.1 (this site's paraphrase) and how the JJA/AGL 2025 table lists it. Each CIBJO value links to its entry under “Testing and market”, where the wording and source are given in full.
This table scrolls sideways on narrow screens.
| Treatment | Market frequency (CIBJO) | Stability (CIBJO) | GB/T 16552 category | JJA/AGL listing | Identification leads |
|---|---|---|---|---|---|
| Heating | — | — | Optimization | — | — |
| Filling | — | — | Graded — see §5.4.1, Table 1 | — | — |
| Dyeing | — | — | Optimization | — | — |
“—” means the cited source gives no value for that item, not “none”. Source: GB/T 16552—2017 Table B.1 (row for Chalcedony)
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
Besides Blue Lace Agate, the name register records "Blue lace agate", for which no restriction on use as a name is recorded.
Trade and mineralogical namesBlue Lace Agate is a trade name, with the identity tier colour/appearance variety. Recommended listing nameThe suggested listing name is Blue Lace Agate, and the corresponding national-standard name is agate (GB/T 16552—2017), while the name Blue Lace Agate itself is not listed in the original. Trade and mineralogical namesThe common market name and synonym is Blue lace agate, registered as an English market name with no restriction recorded on its use as a name, on the basis of a ruling by this site with no clause attached. Names in four languagesNames are given in four languages: Simplified Chinese, Traditional Chinese, English (Blue Lace Agate) and Japanese (a katakana transliteration); the mineralogical name describes banded pale blue chalcedony. Institution usageOn authority wording, the FTC and CIBJO texts on file have no wording for this name (checked), and GIA and Gem-A wording is unchecked; for bodies without a recorded wording, the entry's own English name is shown, which does not represent their position. Japanese namesThe entry's own Japanese name is the katakana transliteration, and Japan's GSJ wording for this name is not yet verified by this site.
Name register
Every name recorded for this entry, with how it is classified, whether it may be matched to this entry automatically, whether it may be used as a product name, and the clause it rests on.
This table scrolls sideways on narrow screens.
| Name | Type | Matching | Use as a name | Basis |
|---|---|---|---|---|
| no restriction recorded (1) | ||||
| Blue lace agateEnglish | market name | matched automatically | no restriction recorded | editorial ruling (no clause cited) |
How each authority words this name: see Names › Authority wording.
- GSJ (Japan) formal name
- ブルーレースアゲート (not yet checked for this body — the entry's own Japanese name is shown)
- GB/T naming counterpart (this name is not in the standard)
- 玛瑙 (GB/T 16552—2017 §5.1.1 c))
- Mineralogical name
- Banded pale-blue chalcedony
Four-language names
- 简体中文
- 蓝纹玛瑙
- 繁體中文
- 藍紋瑪瑙
- English
- Blue Lace Agate
- 日本語
- ブルーレースアゲート
See also: Misleading and prohibited trade names · Supplementary name index
Classification
- Origin
- Natural materials
- Material domain
- Natural inorganic gem materials
- Browsing family
- Quartz and chalcedony materials
- Identity tier
- Trade name: colour / appearance variety
- Mineral chemical class
- Silicates
- Construction or treatment status
- Natural identity; treatment status unknown
Treatments listed by standards
In GB/T 16552—2017 Annex B, Table B.1, Blue Lace Agate falls under the “Chalcedony (Agate/Jasper)” row: heating is listed as optimization; filling is graded as set out in the standard; dyeing is listed as optimization. The notes to Table B.1 and the definitions of the filling grades are on the Gem treatments page, and the treatment effects listed for chalcedony (agate/jasper) in Table B.1 are on the Chalcedony entry.
GB/T 16552-2017, Annex B, Table B.1
Under the “Chalcedony (Agate/Jasper)” row of Table B.1: Heating Optimization; Filling Graded — see §5.4.1, Table 1; Dyeing Optimization. The full row, with the effect column, is on the Chalcedony page.
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
Among the material facts for Blue Lace Agate, whole-class features such as chemical composition, luminescence, UV-visible spectrum, infrared spectrum and magnification are written in the cited clause for chalcedony (including agate and jasper, the whole class); they are not repeated on the Blue Lace Agate page and can be found on the Chalcedony entry. The remaining values are likewise taken from chalcedony (including agate and jasper, the whole class), not measured on Blue Lace Agate alone. Values registered from GB/T 16553—2017: structure cryptocrystalline aggregate, compact and massive, and may also form spherulitic, radiating or microfibrous aggregates; Mohs hardness 5–7; cleavage none; density 2.5–2.77 g/cm³; optical character anisotropic aggregate; refractive index 1.535–1.539, where the site note explains that the clause has finer sub-ranges and the overall value is used; birefringence not measurable on an aggregate; pleochroism not measurable on an aggregate, treatment status untreated; among optical effects, both iridescence and the cat's-eye effect can occur; the quality factor lustre is vitreous to greasy, treatment status untreated.
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”.
Chemical composition, luminescence, UV-visible spectrum, infrared spectrum, magnification: these whole-class features are given in the cited clause for chalcedony, including agate and jasper (the whole class), so they are not repeated on the Blue Lace Agate page; see the material facts on the Chalcedony entry.
Items below that name the class they cover give the cited clause’s value for that whole class, not a measurement of Blue Lace Agate (how to read class-level values).
Structure
Blue Lace Agate — structure (overall): a cryptocrystalline aggregate, dense and massive in habit; it may also form spherulitic, radial or finely fibrous aggregates.
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- chalcedony, including agate and jasper (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.5 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Durability
Blue Lace Agate — Mohs hardness: 5–7
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
- What this covers
- chalcedony, including agate and jasper (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.5 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Blue Lace Agate — cleavage: none
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- chalcedony, including agate and jasper (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.5 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Physical properties
Blue Lace Agate — density: 2.5–2.77 g/cm³
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- chalcedony, including agate and jasper (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.5 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Optical
Blue Lace Agate — optic character: anisotropic aggregate
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- chalcedony, including agate and jasper (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.5 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Blue Lace Agate — refractive index: 1.535–1.539
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- chalcedony, including agate and jasper (the whole class)
- General note
- the clause has finer ranges
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.5 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Blue Lace Agate — birefringence: not measurable on an aggregate
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- chalcedony, including agate and jasper (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.5 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Blue Lace Agate — pleochroism: not measurable on an aggregate
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
- What this covers
- chalcedony, including agate and jasper (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.5 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Blue Lace Agate — optical effect (iridescence): seen
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- chalcedony, including agate and jasper (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.5 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Blue Lace Agate — optical effect (chatoyancy): seen
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- chalcedony, including agate and jasper (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.5 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
- CIBJO definitions
- chatoyancy
Quality factors
Blue Lace Agate — quality factor (lustre): vitreous to greasy
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
- What this covers
- chalcedony, including agate and jasper (the whole class)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.2.5 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Each row's “Source & check” expands to the full source; the date beside it is the fact check date.
This material (RI / SG midpoints): 1.537 / 2.63; Closest values: 1Amethyst 1.548 / 2.67, 2Charoite 1.554 / 2.66, 3Changhua Stone 1.56 / 2.6, 4Shoushan Stone 1.56 / 2.7, 5Balin Stone 1.56 / 2.55
Show the full chart (330 registered materials)
Outside the full chart's range, drawn as triangles at the edge (RI / SG midpoints): Hematite 3.045/5.12, Synthetic Rutile 2.76/4.26, Rutile 2.753/4.23, Synthetic Moissanite 2.67/3.22
Testing and market
The CIBJO laboratory protocol covers Blue Lace Agate under “Chalcedony” (§6.1.16): see identification on the Chalcedony entry; the required tests are listed on the CIBJO laboratory protocol table for Chalcedony.
How far testing can go
Each row's “Source & check” expands to the full source; the date beside it is the fact check date.
Evidence and sources
Authority basis and clause sources
Sources
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.
Related-entry tree for Quartz on this site: 74 entries listed by this site's parent-entry links; synthetic, treated and similar entries carry their recorded state after the name; this page (Blue Lace Agate) is marked.
- Quartz
Sub-entries (57)
- Agate
Sub-entries (1)
- Amethyst
- Ametrine
- Aventurine Quartz
- Aventurine Quartz / Green Aventurine
- Banded Agate
- Black Agate
- Bloodstone / Heliotrope
- Blue Lace Agate
- Carnelian
- Chalcedony
Sub-entries (2)
- Chrysoprase
- Citrine
- Clear Quartz / Rock Crystal
- Coated Quartz
- Colourless to White Quartz (brand name: Azeztulite)
- Crazy Lace Agate
- Dendritic Agate
- Dyed Agate (Treated: dyed)
- Elestial Quartz / Skeletal Quartz
- Eye Agate
- Flower Agate / Cherry Blossom Agate
- Green Quartz
- High-clarity quartz with golden needle-like inclusions
- Included Quartz
- Jasper
Sub-entries (1)
- Madeira Citrine
- Malachite Agate
- Morion / very dark Smoky Quartz
- Moss Agate
- Moss Chalcedony
- Multi-inclusion Quartz
- Onyx (banded chalcedony)
- Phantom Quartz
- Prase
- Prasiolite / Green Quartz
- Quartz Cat’s-eye
- Quartz claimed to be from the Himalayas
- Quartz Crystal
- Quartz with dark needle-like inclusions
- Quartz with fine fibrous inclusions
- Quartz with flower-like inclusions
- Quartz with golden needle-like inclusions
- Quartz with green needle-like inclusions
- Quartzite Jade
- Quartzose Jade
- Red Agate
- Rock Crystal
- Rose Quartz
- Rutilated Quartz
- Sard
- Sardonyx
- Silicified Asbestos
Sub-entries (2)
- Hawk’s Eye
- Tiger’s Eye
Sub-entries (1)
- Smoky Quartz
- Smoky Quartz (brown variety)
- Strawberry Quartz
- Yellow-green Quartz
- Agate
This table scrolls sideways on narrow screens.
| Page | Content | Status |
|---|---|---|
| Browsing family | Quartz and chalcedony materials | Live |
| Treatments recorded for this material | Heated / Heat-treated (via parent material), Filled / Fracture-filled (via parent material), Dyed (via parent material) | Live |
| Related articles | To be added (placeholder) | Planned |
Who maintains this page
The material facts in the Blue Lace Agate 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. The entry exists so that buyers and sellers can check naming, disclosure and material facts item by item.