On this page
UnderstandWhat it is, what people ask, how far this page goes
Natural inorganic gem materials · Mineral / gemstone variety · Natural identity; treatment status unknown
Rubellite
Also known asPink Tourmaline (conditional name)
A variety name for pink to red Tourmaline; it may be elbaite, liddicoatite or rossmanite and is not limited to a single mineral species. Also known as Pink Tourmaline. 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 Rubellite 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 RubelliteHow far lab testing can go
- Treatments and enhancements of RubelliteThe enhancements and treatments the GB/T and JJA/AGL tables list
- Caring for and wearing RubelliteCleaning, heat, chemicals and light, as the cited sources give them
- Hardness, density and refractive index of RubelliteEach value with its source and check date
- Rubellite 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?
- Listing and disclosing RubelliteThe listing name to use; what must be disclosed before sale
- Standard clauses that define RubelliteWhich 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
The colour-based trade name ‘rubellite’ is given to tourmaline in pink, red, purplish-red, orangy-red and brownish-red shades; the pink-to-red hues are generally attributed to manganese, and such stones typically crystallise in granitic pegmatites, with elbaite as the usual parent. How much of each colouring element entered the crystal during growth governs how deep and how saturated the hue becomes. Because several tourmaline species can carry this colour, the variety name cannot replace identification of the species.
Scope: Applies at the level of the colour variety of pink to red tourmaline; specific mineral species, treatment and origin must be identified and disclosed separately.
Sources GIA Tourmaline Description
Where it forms
Granitic pegmatites, where pink-to-red tourmaline crystallises from manganese-rich residual fluids
Sources GIA Tourmaline Description
Central zones and pockets of pegmatites, with elbaite and related species as the main parent material
Sources GIA Tourmaline Description
How it forms, step by step
Tourmaline crystallises from a manganese-rich pegmatitic melt/fluid
Sources GIA Tourmaline Description
Colouring elements such as manganese enter the structure, giving pink-to-red hues
Sources GIA Tourmaline Description
Crystals grow in the central zones and pockets, their colour banding tracking changes in fluid composition
Sources GIA Tourmaline Description
Link to appearance
Pink-to-red hues are manganese-related; the depth of colour cannot establish the species or whether the stone was heated.
Sources GIA Tourmaline Description
Timescale
The cited texts give no specific duration or absolute age for rubellite crystallisation.
Sources GIA Tourmaline Description
Related base materials
- Tourmaline supergroup (commonly elbaite): Rubellite is a commercial colour-variety name for pink to red tourmaline and may involve several mineral species, such as elbaite, liddicoatite and rossmanite
Recorded localities
Authoritative sources list the localities below; the list is not exhaustive.
Africa
- Nigerialarge output in the late 1990s; G&G (2000) reports the deposits apparently exhausted
Sources Gems & Gemology Winter 2000
Asia
- Tan Lap and Khai Trung, Luc Yen District, Yen Bai, Vietnam
Sources Gems & Gemology Winter 2013
North America
- Himalaya mine, Mesa Grande district, San Diego County, California, United Statesopened 1898; San Diego mines shipped large quantities of gem rubellite to Imperial China in 1902–1910
Sources GIA Gem Encyclopedia
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.
Causes of colour and optical effects
Pink and red colours in tourmaline are generally manganese-related (manganese produces reds and pinks).
Evidence grade BScope: A general rule for tourmaline colour; some hues may also arise from colour centres and other mechanisms.
Sources GIA Tourmaline Description
Other research findings
The trade label ‘rubellite’ covers tourmaline in pink, red, purplish-red, orangy-red and brownish-red hues; whether it should extend to the pink material remains a matter of disagreement among dealers.
Evidence grade BScope: Describes a colour-variety naming range, not a fixed colour standard.
Sources GIA Tourmaline Description
Synthesis: rubellite is a colour-based variety name that may involve several tourmaline species, commonly elbaite as the parent, and the species must be established by chemical analysis.
Evidence grade BScope: A name-level synthesis, not a specimen-level conclusion; species and treatment still require testing.
Sources GIA Tourmaline Description
Limits of this research
- Research status: Only partial material-specific findings found; gaps are stated as gaps
- Rubellite's colour boundaries lack a single hard standard; interpret in context.
- The sources give no timescale for rubellite crystallisation.
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
- Red Tourmaline
GB/T 16552—2017 5.1.1 c) · CIBJO Gemmological Laboratories Book 2024 §7.2.1.200 “Rubellite”
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), Irradiated, Coated (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
"Rubellite" 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 "Red Tourmaline" 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
- Red Tourmaline
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.
The item-by-item care advice that the GIA Care and Cleaning Guide gives for the whole class, and so for Rubellite, is set out in full under care on the Tourmaline entry.
Care
Rubellite — 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
- fissure filling with oil, fissure filling with resin
Source & check 2026-09-25
- Source
- CIBJO Blue Book — Official Gemstone Book (Coloured Stone Commission 2022) (CIBJO): §8 Annex C, Rubellite, p.81; §6.2 j (locator checked 2026-09-25)
- Fact checked on
- 2026-09-25
Rubellite — care (chemicals): 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 k
- Treatment state
- treated
- Only after these treatments
- fissure filling with oil, fissure filling with resin
Source & check 2026-09-25
- Source
- CIBJO Blue Book — Official Gemstone Book (Coloured Stone Commission 2022) (CIBJO): §8 Annex C, Rubellite, p.81; §6.2 k (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
CleaningThe CIBJO Blue Book 2022 states that Rubellite in the treated state, specifically Rubellite treated by fissure oiling or fissure filling with resin, must not be cleaned ultrasonically. CIBJOThe CIBJO Blue Book 2022 also states that for Rubellite in the treated state, specifically Rubellite treated by fissure oiling or fissure filling with resin, treatments with dye, oil, resin, wax or plastic are not permanent, so contact with solvents (including dish-washing liquids), chemicals and heat should all be avoided. General careGeneral care is given in the general care part of the material entries index page; the GIA care and cleaning guide is given for the whole class and so also applies to Rubellite, and item-by-item care advice is listed in the care part of the Tourmaline entry.
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| Question | Matching entries |
|---|---|
| Can it go in an ultrasonic or steam cleaner? | care (cleaning) |
| Contact with acids, alkalis and household chemicals | Treatments with dye, oil, resin, wax or plastic are not permanent; keep it away from all solvents (including dish-washing liquids), chemicals and heat |
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 | — | — | Treatment | — | — |
| Irradiation | — | — | Treatment | — | — |
| Coating | — | — | Treatment | — | — |
| irradiation | — | — | — | irradiation | — |
“—” means the cited source gives no value for that item, not “none”. Source: GB/T 16552—2017 Table B.1 (row for Tourmaline); 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 Rubellite, the name register records "Pink Tourmaline" and "Rubellite", for which no restriction on use as a name is recorded (CIBJO Gemstone Book 2022 Annex 8 “Pink Tourmaline”).
Standard and listing namesThe basic name corresponding to Rubellite in GB/T 16552—2017 Table A.1 is Tourmaline, and the GB/T 16552—2017 text does not list Rubellite itself; the suggested listing name is red tourmaline. Trade and mineralogical namesRubellite is a trade name, and under GB/T 16552—2017 a trade name should not be used on its own: a label should give the basic name Tourmaline, followed by the note “trade name: Rubellite”. Candidate search termsRubellite is registered as a market name and Pink Tourmaline as a synonym, only as a candidate search term. Institution usageCIBJO lists Rubellite (CIBJO Gemmological Laboratories Book 2024); the FTC source text has no wording for this name (checked); GIA and Gem-A have not been checked, and bodies without a recorded wording show the entry's own English name, which does not represent their position. Names in four languagesThe four-language names are given in Simplified Chinese, Traditional Chinese, English (Rubellite) and Japanese (a transliteration, the entry's own Japanese name), and the Japanese GSJ wording for this name is not yet verified by this site. Mineralogically it is described as a pink to red tourmaline variety, which may include elbaite, liddicoatite or rossmanite.
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.
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| Name | Type | Matching | Use as a name | Basis |
|---|---|---|---|---|
| no restriction recorded (2) | ||||
| Pink TourmalineEnglish | synonym | search candidate only | no restriction recorded | CIBJO Gemstone Book 2022 Annex 8 “Pink Tourmaline” |
| RubelliteEnglish | 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
- ルベライト (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)
- 碧玺 (GB/T 16552—2017 Table A.1)
- Mineralogical name
- Pink-to-red tourmaline gem variety; may include elbaite, liddicoatite or rossmanite
- Trade names and synonyms
- Pink Tourmaline (synonym; conditional name)
Four-language names
- 简体中文
- 红碧玺
- 繁體中文
- 紅碧璽
- English
- Rubellite
- 日本語
- ルベライト
See also: Misleading and prohibited trade names · Supplementary name index
Classification
- Origin
- Natural materials
- Material domain
- Natural inorganic gem materials
- Browsing family
- Tourmaline-supergroup minerals and gem varieties
- Identity tier
- Mineral / gemstone variety
- Mineral chemical class
- Silicates
- Construction or treatment status
- Natural identity; treatment status unknown
Treatments listed by standards
GB/T 16552-2017, Annex B, Table B.1
Under the “Tourmaline” row of Table B.1: Heating Optimization; Filling Graded — see §5.4.1, Table 1; Dyeing Treatment; Irradiation Treatment; Coating Treatment. The full row, with the effect column, is on the Tourmaline 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.
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 |
|---|---|---|---|---|
| [colour] Tourmaline | Tourmaline | pink to red | an untreated tier is listed; irradiation (Irradiated) | also called rubellite |
JJA/AGL definitions and nomenclature (2025 revision), table of principal gem names, p.14
How to read the JJA/AGL table: see the Gem treatments page.
What it is and how it's identified
Most of the material facts for Rubellite are taken from the cited clauses for tourmaline (the whole mineral group), not measured on Rubellite separately. For tourmaline (the whole mineral group): the structure is crystalline and trigonal; Mohs hardness 7–8, no cleavage; density 2.46–3.26 g/cm³, the cited clause giving 3.06 with a tolerance of +0.20/−0.60, from which the range is derived; refractive index 1.615–1.655, the cited clause giving 1.624–1.644 with a tolerance of +0.011/−0.009, from which the range is derived; birefringence 0.018–0.04, the clause having further sub-grades, with the overall value used; the optic character is anisotropic, uniaxial negative; pleochroism in the untreated state is moderate to strong, in lighter and darker shades of the body colour; the lustre in the untreated state is vitreous; as optical effects, the cat's-eye effect can be seen, and the colour-change effect can be seen but is rare. The body colour of Rubellite is that of a pink to red tourmaline variety, possibly with a slight orange, purple or brown tint, 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”.
Luminescence, UV-visible spectrum, infrared spectrum, magnification: these whole-class features are given in the cited clause for tourmaline (the whole mineral group), so they are not repeated on the Rubellite page; see the material facts on the Tourmaline entry.
Items below that name the class they cover give the cited clause’s value for that whole class, not a measurement of Rubellite (how to read class-level values).
Structure
Rubellite — structure (overall): crystalline
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- tourmaline (the whole mineral group)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Rubellite — structure (crystal system): trigonal
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- tourmaline (the whole mineral group)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Rubellite — structure (crystal habit): rounded trigonal prisms or more complex ditrigonal prism-and-pyramid combinations; the crystal faces are distinctly striated lengthwise.
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- tourmaline (the whole mineral group)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Durability
Rubellite — Mohs hardness: 7–8
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
- tourmaline (the whole mineral group)
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Rubellite — cleavage: none
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- tourmaline (the whole mineral group)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Physical properties
Rubellite — density: 2.46–3.26 g/cm³
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- tourmaline (the whole mineral group)
- Qualification
The clause we cite gives 3.06, with a stated tolerance of +0.20 / -0.60. The range shown here is worked out from that.
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Optical
Rubellite — optic character: uniaxial, optically negative (anisotropic)
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- tourmaline (the whole mineral group)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Rubellite — refractive index: 1.615–1.655
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- tourmaline (the whole mineral group)
- Qualification
The clause we cite gives 1.624–1.644, with a stated tolerance of +0.011 / -0.009. The range shown here is worked out from that.
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Rubellite — birefringence: 0.018–0.04
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- tourmaline (the whole mineral group)
- General note
- the clause has finer ranges
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Rubellite — pleochroism: moderate to strong, in lighter and deeper shades of the body colour.
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
- What this covers
- tourmaline (the whole mineral group)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Rubellite — fluorescence (overall): red and pink tourmaline: weak, red to violet.
GB/T 16553—2017
UV fluorescenceredvioletweak, red and pink tourmalineDots are illustrative colours built from the colour names, not measured values
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 Fluorescence (locator checked 2026-09-28)
- Fact checked on
- 2026-09-26
Rubellite — spectrum (UV-visible): red and pink tourmaline: broad absorption band in the green region; sometimes visible 525 nm narrow absorption band; 451 nm absorption peak; 458 nm absorption peak.
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 UV-visible spectrum (locator checked 2026-09-28)
- Fact checked on
- 2026-09-26
Rubellite — optical effect (chatoyancy): seen
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- tourmaline (the whole mineral group)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Rubellite — optical effect (colour change): seen; rare
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- tourmaline (the whole mineral group)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Rubellite — body colour: Pink to red variety of tourmaline; may be slightly orangish, purplish or brownish.
CIBJO Gemmological Laboratories Book 2024
- Treatment state
- untreated
- Qualification
In chapter 7 of the CIBJO Gemmological Laboratories Book, the colour descriptions of Ruby, Malaya Garnet, Morganite and other entries also name pink or a pinkish colour.
- General note
- colour alone is not identity
Source & check 2026-09-22
- Source
- Fact checked on
- 2026-09-22
- CIBJO definitions
- chatoyancy, colour change
Quality factors
Rubellite — quality factor (lustre): vitreous
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
- What this covers
- tourmaline (the whole mineral group)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.10 (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): 1.635 / 2.86; Closest values: 1Prehnite 1.625 / 2.88, 2Larimar 1.62 / 2.82, 3Datolite 1.646 / 2.95, 4Danburite 1.633 / 3, 5Sugilite 1.61 / 2.77
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 Rubellite under “Tourmaline” (§6.1.86): see identification on the Tourmaline entry; the required tests are listed on the CIBJO laboratory protocol table for Tourmaline.
How far testing can go
Each row's “Source & check” expands to the full source; the date beside it is the fact check date.
Clause-level definitions
Rubellite has a direct definition in the CIBJO Gemmological Laboratories Book 2024 under the clause-level entry Rubellite, defined as the pink to red variety of tourmaline, possibly with a slight orange, purple or brown tint; the cross-check result is a direct CIBJO definition, and no identically named English entry was found in this edition of the GB/T annex.
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| Term | Clause | Definition | Cross-check |
|---|---|---|---|
| Rubellite | 7.2.1.200 | Pink to red variety of tourmaline; may be slightly orangish, purplish or brownish | Defined directly by CIBJO; no identically named English entry was found in this edition of the GB/T annex. |
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.
- GIA – Gemological Institute of America (United States). Gem Encyclopedia: Tourmaline Description.
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 Tourmaline on this site: 12 entries listed by this site's parent-entry links; synthetic, treated and similar entries carry their recorded state after the name; this page (Rubellite) is marked.
This table scrolls sideways on narrow screens.
| Page | Content | Status |
|---|---|---|
| Browsing family | Tourmaline-supergroup minerals and gem varieties | Live |
| Treatments recorded for this material | Heated / Heat-treated (via parent material), Filled / Fracture-filled (via parent material), Dyed (via parent material), Irradiated, Coated (via parent material) | Live |
| Related articles | To be added (placeholder) | Planned |
Who maintains this page
The material facts in the Rubellite 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.