On this page
UnderstandWhat it is, what people ask, how far this page goes
Natural inorganic gem materials · Mineral species · Natural identity; treatment status unknown
Haüyne
Also known asHauynite
A silicate mineral species listed in GB/T 16552-2017 Appendix A.1; Haüyne must not be confused with Sodalite, Lazulite or Lapis Lazuli. 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 Haüyne forms and what gives its colourFormation setting, process and timescale, each finding graded and sourced
- How to identify HaüyneHow far lab testing can go and whether a synthetic exists
- Treatments and enhancements of Haüyne1 registered treatments: status, stability, how common they are and identification leads
- Caring for and wearing HaüyneCleaning, heat, chemicals and light, as the cited sources give them; durability indicators and wearing advice
- Hardness, density and refractive index of HaüyneEach value with its source and check date
- Haüyne in English, Chinese and Japanese; national standard namesNames in four languages, the GB/T standard name and the suggested listing name; and: Which of GIA, FTC, CIBJO and Gem-A have a name for it on record, and do those agree?
- Name origin and history of HaüyneWhere the name comes from
- Listing and disclosing HaüyneThe listing name to use; what must be disclosed before sale
- Standard clauses that define HaüyneWhich 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
Haüyne is a cubic framework silicate belonging to the sodalite group, with an ideal composition near (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2. Its host rocks are phonolites and their relatives among leucite- or nepheline-rich igneous rocks, and more rarely nepheline-free extrusives; it crystallises within alkaline volcanic rocks.
Scope: Applies to the genesis and occurrence of natural haüyne as a sodalite-group silicate mineral species; does not cover synthetics or artificial imitations.
Sources Handbook of Mineralogy
Where it forms
Phonolites and their leucite- or nepheline-rich igneous relatives; nepheline-free extrusives more rarely
Sources Handbook of Mineralogy
Associated minerals: augite, melilite, nepheline, leucite, biotite, phlogopite, apatite, sanidine, titanian andradite
Sources Handbook of Mineralogy
How it forms, step by step
An alkaline (phonolitic) magma rich in sodium, calcium and silicon but relatively silica-poor forms.
Sources Handbook of Mineralogy
During crystallisation, sulfate/chlorine combines with the framework silicate, crystallising haüyne.
Sources Handbook of Mineralogy
Haüyne forms dodecahedra or pseudo-octahedra, or rounded grains, commonly twinned on (111).
Sources Handbook of Mineralogy
Haüyne occurs with nepheline, leucite, augite, sanidine and other alkaline igneous minerals.
Sources Handbook of Mineralogy
Link to appearance
Haüyne is bright blue to greenish blue, and may also be white, black, gray, brown, green, yellow or red (sometimes patchy); colourless or pale blue in thin section. It has a vitreous to greasy lustre, hardness 5.5-6, and may show reddish orange to purplish pink fluorescence under LW UV. Colour relates to its sulfur- and chlorine-bearing composition, though the source states no specific mechanism.
Sources Handbook of Mineralogy
Timescale
The source states no absolute geological timescale for haüyne formation.
Sources Handbook of Mineralogy
Supporting findings
Phonolites and their relatives among leucite- or nepheline-rich igneous rocks are Haüyne's principal host; nepheline-free extrusives host it more rarely.
Evidence grade BScope: Describes the host rock types.
Sources Handbook of Mineralogy
Haüyne's companions include augite, melilite, nepheline, leucite, biotite, phlogopite, apatite, sanidine and titanian andradite.
Evidence grade BScope: Describes the association in alkaline igneous rocks.
Sources Handbook of Mineralogy
Recorded localities
Authoritative sources list the localities below; the list is not exhaustive.
Asia
- Sar-e-Sang, Badakhshan, Afghanistan
Sources Mindat: Haüyne
Europe
- Mendig, Eifel, GermanyClassic locality
Sources Handbook of Mineralogy
- Alban Hills, Lazio, Italy
Sources Handbook of Mineralogy
South America
- Poços de Caldas alkaline complex, Minas Gerais, Brazil
Sources Mindat: Haüyne
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 English name haüyne honors Abbé René Just Haüy (1743–1822), French crystallographer and mineralogist.
Evidence grade BScope: Etymology explains the origin of the name only; it does not establish the material's composition, locality, naturalness, or treatment.
Sources Handbook of Mineralogy
Other research findings
Haüyne belongs to the sodalite group; its ideal composition approximates (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2, crystallising in the cubic system.
Evidence grade BScope: Species-level composition, group membership and crystal system.
Sources Handbook of Mineralogy
Haüyne is an independent mineral species of the sodalite group; it is a different species from the sodalite-group mineral lazurite, and their facts must not be conflated.
Evidence grade BScope: Bounds haüyne against the other sodalite-group species; does not substitute their own records.
Sources Handbook of Mineralogy
Haüyne may show reddish orange to purplish pink fluorescence under LW UV, has hardness 5.5-6 and a vitreous to greasy lustre.
Evidence grade BScope: Describes optical/physical properties only; no mechanism.
Sources Handbook of Mineralogy
Limits of this research
- Research status: Formation, occurrence or other material-specific findings found in authoritative sources
- The source is a mineralogical data sheet and gives no absolute geological timescale for haüyne formation.
- The source gives no specific mechanism for haüyne's colour.
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
- Hauyne
GB/T 16552—2017 Table A.1 “Hauyne” · IMA Mineral List 2026-07 “Haüyne”
Construction or treatment status
Natural identity; treatment status unknown
Treatments recorded for this material: Impregnated
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
Haüyne is Haüyne; use "Hauyne" for listings, and disclose any known treatments.
Evidence
- GB/T · Table A.1, row 蓝方石 (Haüyne)
What this means for you
Before buying, check the recommended listing name "Hauyne" and any disclosed treatments on this page, and ask the seller for a grading report if in doubt.
Known uncertainty
- Last reviewed
- 2026-09-01
Care and wear
Normal care for every gemstone (CIBJO Gemstone Book §6.1), in brief:
- Handle it gently.
- Store pieces apart when not worn, so they cannot scratch each other.
- Clean with warm soapy water and a soft brush.
- Use ultrasonic cleaners only with caution.
The §6.1 wording and the full list of §6.2 special-care letters cited on this page are on the general gem care page.
Care
Haüyne — care (cleaning): Some stones are susceptible to damage from ultrasonic cleaning. Do not expose them to ultrasonic cleaning.
CIBJO Gemstone Book 2022
CIBJO Gemstone Book §6.2:special-care code j
- Treatment state
- treated
- Only after these treatments
- impregnation
Source & check 2026-09-25
- Source
- CIBJO Blue Book — Official Gemstone Book (Coloured Stone Commission 2022) (CIBJO): §8 Annex C, Hauyne, p.56; §6.2 j (locator checked 2026-09-25)
- Fact checked on
- 2026-09-25
Haüyne — care (chemicals): porous, so do not let it come into contact with coloured fluids; treatments with dye, oil, resin, wax or plastic are not permanent; keep it away from all solvents (including dish-washing liquids), chemicals and heat.
CIBJO Gemstone Book 2022
CIBJO Gemstone Book §6.2:special-care code c, special-care code k
- Treatment state
- treated
- Only after these treatments
- impregnation
Source & check 2026-09-25
- Source
- CIBJO Blue Book — Official Gemstone Book (Coloured Stone Commission 2022) (CIBJO): §8 Annex C, Hauyne, p.56; §6.2 c, k (locator checked 2026-09-25)
- Fact checked on
- 2026-09-25
Haüyne — care (wear): Some stones are prone to scratching due to low hardness. Wear them with care.
CIBJO Gemstone Book 2022
CIBJO Gemstone Book §6.2:special-care code a
- Treatment state
- treated
- Only after these treatments
- impregnation
Source & check 2026-09-25
- Source
- CIBJO Blue Book — Official Gemstone Book (Coloured Stone Commission 2022) (CIBJO): §8 Annex C, Hauyne, p.56; §6.2 a (locator checked 2026-09-25)
- Fact checked on
- 2026-09-25
Each row's “Source & check” expands to the full source; the date beside it is the fact check date.
Common care questions and matching entries
The care conclusions registered for Haüyne in the CIBJO Gemstone Book (2022) all have the status treated and apply only to impregnation: impregnated haüyne must not be cleaned ultrasonically; impregnated haüyne is porous and must not come into contact with coloured liquids, and treatments with dye, oil, resin, wax or plastic are not permanent, so keep it away from all solvents (including dish-washing liquids), chemicals and heat; impregnated haüyne is soft and scratches easily, so wear it with care.
This table scrolls sideways on narrow screens.
| Question | Matching entries |
|---|---|
| Can it go in an ultrasonic or steam cleaner? | care (cleaning) |
| Contact with acids, alkalis and household chemicals | porous, so do not let it come into contact with coloured fluids; treatments with dye, oil, resin, wax or plastic are not permanent; keep it away from all solvents (including dish-washing liquids), chemicals and heat |
| Wearing limits (knocks, settings) | care (wear) |
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
Brittle
Cleavage
{110} distinct
Treatments and identification leads
Registered treatmentsThe treatment registered for Haüyne is impregnation. Stability and frequencyImpregnation has the treatment state treated, an unstable effect and rare market prevalence. Values not givenIn the register, the identification leads and source for impregnation are shown as “—”, meaning the cited source gives no value, not “none”. SyntheticsNo synthetic counterpart of Haüyne is available on the market.
This table scrolls sideways on narrow screens.
| Treatment | Market frequency (CIBJO) | Stability (CIBJO) | GB/T 16552 category | JJA/AGL listing | Identification leads |
|---|---|---|---|---|---|
| impregnationStatus: treated | rarely | unstable | — | impregnation with a colourless agent | — |
Where each treatment acts (schematics): Impregnated
“—” means the cited source gives no value for that item, not “none”. Source: CIBJO Gemstone Book 2022; JJA/AGL 2025
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 Haüyne, the name register records "Hauyne" and "Hauynite", for which no restriction on use as a name is recorded (JJA/AGL Gemstone Nomenclature 2025 p.9); 2 further names in non-Latin scripts are listed in the name register below (2 with no restriction recorded on use as a name).
Standard and listing namesThe Chinese standard name for Haüyne comes from GB/T 16552—2017 Table A.1, and the suggested listing name is also Haüyne. Trade and mineralogical namesThe mineralogical name is Haüyne, and the trade name or synonym is registered as Hauyne; a further English synonym is Hauynite, registered on the basis of the main gem nomenclature list on p. 9 of the JJA/AGL gem name handbook 2025, while Hauyne rests on a ruling by this site (no clause attached). Names in four languagesNames are registered in Simplified Chinese, Traditional Chinese, English (Haüyne) and Japanese; the Japanese name shown is the entry's own, and the wording used by the GSJ (Japan) for it is not yet verified by this site. Candidate search termsTwo Japanese transliterations are registered on the basis of the main gem nomenclature list on p. 9 of the JJA/AGL gem name handbook 2025, and this site marks both as candidate search terms only. Institution usageOn authority wording, this site records only the CIBJO wording, Haüyne (CIBJO Gemmological Laboratories Book 2024); GIA, FTC and Gem-A are unchecked, and bodies without a recorded wording show the entry's own English name, which does not represent their position.
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 (4) | ||||
| HauyneEnglish | synonym | matched automatically | no restriction recorded | editorial ruling (no clause cited) |
| HauyniteEnglish | synonym | matched automatically | no restriction recorded | JJA/AGL Gemstone Nomenclature 2025 p.9 |
| アウィナイトJapanese | transliteration | search candidate only | no restriction recorded | JJA/AGL Gemstone Nomenclature 2025 p.9 |
| アウィンJapanese | transliteration | search candidate only | no restriction recorded | JJA/AGL Gemstone Nomenclature 2025 p.9 |
How each authority words this name: see Names › Authority wording.
- GSJ (Japan) formal name
- アウイン／藍方石 (not yet checked for this body — the entry's own Japanese name is shown)
- Chinese formal name
- 蓝方石 (GB/T 16552—2017 Table A.1)
- Mineralogical name
- Haüyne
- Trade names and synonyms
- Hauynite (synonym)
Four-language names
- 简体中文
- 蓝方石
- 繁體中文
- 藍方石
- English
- Haüyne
- 日本語
- アウイン／藍方石
See also: Misleading and prohibited trade names · Supplementary name index
Classification
- Origin
- Natural materials
- Material domain
- Natural inorganic gem materials
- Browsing family
- Other silicate minerals
- Identity tier
- Mineral species
- Mineral chemical class
- Silicates
- Construction or treatment status
- Natural identity; treatment status unknown
Treatments listed by standards
In the table of principal gem names of the JJA/AGL (Japan) definitions and nomenclature of gemstones and ornamental materials, November 2025 revision, Haüyne is recorded with the gem name Hauynite, species Haüyne, colour blue; the JJA/AGL table lists an untreated category, and Haüyne is recorded with impregnation with a colourless agent, that is, impregnation. How to read the JJA/AGL table is explained on the Gem treatments page.
JJA/AGL (Japan) table of principal gem names, 2025
This table scrolls sideways on narrow screens.
| Gem name | Species | Colour | Listed in the table | Notes |
|---|---|---|---|---|
| Hauynite | Haüyne | blue | an untreated tier is listed; impregnation with a colourless agent (Impregnated) |
JJA/AGL definitions and nomenclature (2025 revision), table of principal gem names, p.9
How to read the JJA/AGL table: see the Gem treatments page.
What it is and how it's identified
Haüyne has the composition Na6Ca2(AlSiO4)6(SO4)2 and is crystalline and cubic, with a crystal habit of rhombic dodecahedra or octahedra, commonly as rounded grains. Mohs hardness is 5.5–6 and density 2.42–2.5 g/cm³; optically it is isotropic, with a refractive index of 1.496–1.505, no birefringence, and transparency from transparent to opaque. Untreated, its body colour is recorded by CIBJO as blue, with no pleochroism and a vitreous lustre; GB/T 16553—2017 additionally lists sky blue, blue or greenish blue, white and grey, which complements the CIBJO body-colour record. The UV-visible spectrum shows an absorption band near 600nm in blue stones, and the mid-infrared region shows the characteristic infrared absorption bands of Haüyne. Untreated, it shows orange-red fluorescence of varying strength under long-wave UV, weakening as the colour deepens, and weak orange-red to inert under short-wave UV. For hardness, this site notes that hardness alone is not enough to judge durability.
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
Haüyne — nomenclature status: IMA status G: grandfathered (described before the IMA existed, and generally regarded as a valid species).
CIBJO Gemmological Laboratories Book 2024
Source & check 2026-09-22
- Source
- Fact checked on
- 2026-09-22
Haüyne — composition (chemistry): Na6Ca2(AlSiO4)6(SO4)2
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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Structure
Haüyne — structure (overall): crystalline
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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Haüyne — structure (crystal system): cubic
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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Haüyne — structure (crystal habit): rhombic dodecahedra or octahedra, usually as rounded grains.
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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Durability
Haüyne — Mohs hardness: 5.5–6
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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
For Haüyne, the stability of impregnation is “unstable”.
CIBJO Gemstone Book 2022
- Treatment state
- treated
- Treatment
- impregnation
- Qualification
This says how well the treatment holds up, not how durable Haüyne itself is.
- General note
- no durability verdict here
Source & check 2026-09-25
- Source
- Fact checked on
- 2026-09-25
Physical properties
Haüyne — density: 2.42–2.5 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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Optical
Haüyne — optic character: isotropic material
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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Haüyne — refractive index: 1.496–1.505
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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Haüyne — birefringence: none
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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Haüyne — transparency: transparent to opaque.
CIBJO Gemmological Laboratories Book 2024
Source & check 2026-09-22
- Source
- Fact checked on
- 2026-09-22
Haüyne — pleochroism: 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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Haüyne — fluorescence (long-wave UV): to varying degrees orange-red; fluorescence weakens as the colour deepens.
GB/T 16553—2017
UV fluorescence (long-wave UV)to varying degrees: orange-redDots are illustrative colours built from the colour names, not measured values
- 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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Haüyne — fluorescence (short-wave UV): weak, orange-red to inert
GB/T 16553—2017
UV fluorescence (short-wave UV)orange-redinertweakDots are illustrative colours built from the colour names, not measured values
- 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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Haüyne — spectrum (UV-visible): blue: approximately 600 nm absorption band.
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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Haüyne — spectrum (infrared): Hauyne's own diagnostic absorption bands appear in the mid-IR
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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Haüyne — magnification: gas-liquid inclusions, mineral inclusions, growth striations, negative crystals, healed crack.
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): §5.1.46 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
body colour2 sources compared
Haüyne — body colour: Blue.
CIBJO Gemmological Laboratories Book 2024
- Treatment state
- untreated
- Qualification
In chapter 7 of the CIBJO Gemmological Laboratories Book, the colour descriptions of Lazurite, Maxixe Beryl, Star Sapphire and other entries also name blue or a bluish colour.
- General note
- colour alone is not identity
Source & check 2026-09-22
- Source
- Fact checked on
- 2026-09-22
Haüyne — body colour: sky blue, blue or green-blue, white, grey, etc.
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 Sillimanite, Vesuvianite / Idocrase, Lazulite and other variety clauses also name blue or a bluish colour.
- General note
- colour alone is not identity
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.46 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
How the sources relate
- CIBJO Gemmological Laboratories Book 2024 and GB/T 16553—2017
Both list blue; GB/T 16553—2017 also lists sky blue, greenish blue, white and grey.
Quality factors
Haüyne — quality factor (lustre): vitreous
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): §5.1.46 (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.
This material (RI / SG midpoints): 1.5 / 2.46; Closest values: 1Obsidian 1.495 / 2.4, 2Tektite / Moldavite 1.495 / 2.36, 3Apophyllite 1.536 / 2.4, 4Hackmanite 1.483 / 2.27, 5Serpentine 1.532 / 2.62
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
Identification and market facts for Haüyne: there is no synthetic Haüyne on the market; among Haüyne on the market, impregnation has the status treated and occurs rarely.
The tests the CIBJO laboratory protocol requires for this material, and what each method means, are in the protocol table on the laboratory testing page: §6.1.40.
How far testing can go
Haüyne — synthetic counterpart on the market: No synthetic counterpart of this material is commercially available
CIBJO Gemstone Book 2022
- Treatment state
- any treatment state
Source & check 2026-09-22
- Source
- Fact checked on
- 2026-09-22
For Haüyne in trade, the reported frequency of impregnation is “rarely”.
CIBJO Gemstone Book 2022
- Treatment state
- treated
- Treatment
- impregnation
Source & check 2026-09-25
- Source
- Fact checked on
- 2026-09-25
Each row's “Source & check” expands to the full source; the date beside it is the fact check date.
Clause-level definitions
Haüyne appears in the CIBJO Gemmological Laboratories Book 2024 under the entry name Haüyne, with the clause-level definition blue, transparent to opaque; the cross-check is recorded as defined directly by CIBJO, with no English term of the same name found directly in the GB/T annex. There is also an IMA mineral list entry, likewise named Haüyne, cross-checked against the RRUFF/IMA mineral list master table.
This table scrolls sideways on narrow screens.
| Term | Clause | Definition | Cross-check |
|---|---|---|---|
| Haüyne | 7.2.1.103 | Blue, transparent to opaque | Defined directly by CIBJO; no identically named English entry was found in this edition of the GB/T annex. |
| Haüyne | IMA Mineral List entry | Haüyne Na3Ca(Si3Al3)O12(SO4) G 1807 | Cross-checked against the RRUFF/IMA master mineral list (public domain data). |
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 | Other silicate minerals | Live |
| Treatments recorded for this material | Impregnated | Live |
| Related articles | To be added (placeholder) | Planned |
Who maintains this page
The material facts in the Haüyne 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.