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
Red Beryl
Also known asBixbite
A red gem variety of Beryl, extremely rare; the old trade name Bixbite is not recommended on its own. 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 Red Beryl forms and what gives its colourFormation setting, process and timescale, each finding graded and sourced
- How to identify Red BerylIdentification points from the research literature; how far lab testing can go
- Treatments and enhancements of Red BerylThe enhancements and treatments the GB/T and JJA/AGL tables list
- Caring for and wearing Red BerylCleaning, heat, chemicals and light, as the cited sources give them
- Hardness, density and refractive index of Red BerylEach value with its source and check date
- Red Beryl 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 Red BerylWhere the name comes from
- Listing and disclosing Red BerylThe listing name to use; what must be disclosed before sale
- Standard clauses that define Red BerylWhich 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
Red beryl is the red gem variety of beryl (Be3Al2Si6O18) in the beryl family. The CIBJO gemstone nomenclature standard names beryl's other colour varieties with colour prefixes such as green beryl and red beryl, placing red beryl among beryl's colour varieties. As a beryl, red beryl forms in Be-rich magmatic/fluid systems such as granitic pegmatites, crystallising from late-stage residual aqueous fluids in pockets.
Scope: Applies to the naming and formation background of red beryl; its red colouring mechanism and specific locality conditions are not elaborated in the cited sources.
Sources CIBJO Gemstone Book 2022 · GIA Emerald Description · G&G Summer 2025
Where it forms
Be-rich magmatic/fluid systems such as granitic pegmatites, crystallising from residual aqueous fluids in pockets.
Sources G&G Summer 2025
How it forms, step by step
Magmatic fractional crystallisation enriches the late residual melt in Be and volatiles.
An aqueous fluid exsolves and crystallises beryl in pegmatite pockets.
Where a specific chromophore is concentrated, beryl becomes red, i.e. red beryl.
Link to appearance
Red beryl is red-toned; its colour is one expression of chromophore variation within the beryl family.
Sources CIBJO Gemstone Book 2022 · GIA Emerald Description · G&G Summer 2025
Timescale
Crystallises from water-rich fluid late in magmatic evolution, consistent with the beryl group.
Sources CIBJO Gemstone Book 2022 · GIA Emerald Description · G&G Summer 2025
Related base materials
- Beryl: Mineral parent: this variety belongs to the mineral species beryl (Be3Al2Si6O18)
Supporting findings
This pegmatite source lists beryl among the gems produced by granitic pegmatites, but it never mentions red beryl, so it is no evidence for where red beryl forms.
Evidence grade CScope: Applies to beryl-group gems in pegmatites in general; red beryl's own setting (rhyolite) is given in faq-r3-F1 of this record.
In complex, zoned pegmatites, gem crystals such as beryl crystallise from residual hydrous fluid in open pockets of the core and intermediate zones; this describes pegmatite beryl in general, not red beryl.
Evidence grade CScope: Concerns the residual-fluid evolution of complex, zoned pegmatites; it is not evidence for how red beryl forms (red beryl is a vapour-phase mineral in rhyolite, see faq-r3-F1).
Gem-quality red beryl is not a pegmatite gem: the only known commercial source is the Ruby Violet (Red Beryl) mine in the Wah Wah Mountains of Beaver County, Utah, where it occurs mostly along fractures in a topaz rhyolite, a volcanic rock. Gems & Gemology describes it as a vapour-phase mineral that crystallised from the reaction of rhyolite-derived gases and vapours from heated groundwater with pre-existing minerals and volcanic glass in the rhyolite. The other known red beryl occurrences are also all in rhyolites, whereas gem beryls in general are common in granitic pegmatites.
Evidence grade AScope: Describes the occurrences reported in Gems & Gemology (1984, 2003); it does not cover every locality or later finds. It supersedes the two statements based on the pegmatite article, which does not discuss red beryl.
Sources G&G Winter 2003 · G&G Winter 1984
Recorded localities
Authoritative sources name a single or principal locality.
North America
- Ruby Violet (Red Beryl) mine, Wah Wah Mountains, Beaver County, Utah, United StatesAs of 2003; the article notes other rhyolite-hosted occurrences, none with significant facet-grade production.
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
'Bixbite' is an old alternative name for red beryl that was generally unused. CIBJO's book for gemmological laboratories says it should no longer be used, because bixbyite, an IMA-approved manganese oxide mineral, is named after the same person; CIBJO's retailers' guide likewise discourages the name because it can be confused with bixbyite, a completely different, opaque black mineral.
Evidence grade AScope: Concerns the name only; it says nothing about the identity or quality of any particular stone.
Sources CIBJO Gemmological Laboratories Book 2024 · CIBJO Retailers' Reference Guide (2021)
How it is identified
Red beryl is visually distinctive, but a striking colour is not an identification. As with other beryl-family members, deciding whether a stone is natural or treated requires laboratory study of its internal inclusions and growth features, cross-checked against chemical and spectroscopic data. The conclusion should be issued by a qualified gem laboratory; appearance alone cannot settle it.
Evidence grade AScope: Applies to origin and treatment questions for beryl-family material; no self-administered criteria are given.
Red beryl is rare and often linked to particular mining areas, so locality may be used to justify a premium, yet appearance cannot prove its origin. A locality name, however, is only a trade attribution and is not a determined origin. Origin work is a laboratory exercise: the deposit type is addressed first, then inclusion suites and trace-element suites (measured by methods such as laser ablation ICP-MS) are compared with reference databases for known localities to yield a conclusion of consistency or inconsistency with a source. Because the characteristic ranges of different localities overlap and vary within a single deposit, the conclusion is probabilistic and may be only inconclusive; heating, filling and diffusion alter the measurable features and must be excluded first. Origin cannot be inferred from appearance or name; an origin conclusion must be issued by a qualified laboratory for a specific specimen. This entry offers no self-test criteria or thresholds.
Evidence grade AScope: Origin cannot be inferred from appearance or name; an origin conclusion must be issued by a qualified laboratory for a specific specimen, and this entry provides no self-test criteria or thresholds.
Other research findings
The CIBJO nomenclature standard names beryl's other colour varieties with colour prefixes such as green beryl and red beryl.
Evidence grade AScope: Valid for nomenclature only, without colour thresholds.
Sources CIBJO Gemstone Book 2022
Red beryl is the red variety of the mineral species beryl (Be3Al2Si6O18).
Evidence grade AScope: Defines only the variety-to-species relation.
Sources GIA Emerald Description
Limits of this research
- Research status: Formation, occurrence or other material-specific findings found in authoritative sources
- The CIBJO nomenclature table is tabular, so quotes are adjacent table-cell text.
- The red chromophore (Mn3+) of red beryl is not directly stated in the available 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
- Red Beryl
IMA Mineral List 2026-07 “Beryl” · CIBJO Gemmological Laboratories Book 2024 §7.2.1.193 “Red beryl”
Construction or treatment status
Natural identity; treatment status unknown
Treatments recorded for this material: Heated / Heat-treated (via parent material), Filled / Fracture-filled, Irradiated (via parent material), 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
Red Beryl is Red beryl gem variety; use "Red Beryl" for listings, and disclose any known treatments.
Evidence
- CIBJO · 7.2.1.193
What this means for you
Before buying, check the recommended listing name "Red Beryl" 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
Care
Red Beryl — care (wear): Like emerald, it can be fragile when many fissures reach the surface.
CIBJO Retailers' Reference Guide (2021)
- Treatment state
- any treatment state
Source & check 2026-09-26
- Source
- CIBJO Retailers' Reference Guide — Gemstones (November 2021) (CIBJO): p.12, Other beryls chapter, “Cutting, care and cleaning” (locator checked 2026-09-28)
- Fact checked on
- 2026-09-26
Red Beryl — care (special care): colourless oil or resin in fissures: special care (SC); avoid high heat, steam cleaning, chemicals and ultrasonic cleaning.
AGTA Gemstone Information Manual, 17th ed.
- Treatment state
- treated
- Only after these treatments
- fissure filling with oil, fissure filling with resin
Source & check 2026-09-26
- Source
- AGTA Gemstone Information Manual, 17th edition (August 2026) (AGTA): p.VIII, Gemstone Information Chart, Beryl Red O, CARE REQUIRED / SPECIAL ADVICE (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.
Common care questions and matching entries
Care of Red Beryl: the CIBJO (The World Jewellery Confederation) Retailer's Reference Guide for gemstones states that Red Beryl, like emerald, can be fragile when many fissures reach the surface; this applies to any treatment state. AGTAThe American Gem Trade Association (AGTA) Gemstone Information Manual, 17th edition, states that Red Beryl with fissures infused with colourless oil or resin needs special care (marked SC) and should be kept away from heat, steam cleaning, chemicals and ultrasonic cleaning; this applies to the treated state, only to Red Beryl treated by fissure oiling or fissure filling with resin.
This table scrolls sideways on narrow screens.
| Question | Matching entries |
|---|---|
| Wearing limits (knocks, settings) | Like emerald, it can be fragile when many fissures reach the surface |
Care entries by treatment state
The same entries grouped by the treatment state each applies to; each links to its full wording and source. Letters are CIBJO special-care codes, explained on the gemstone care page.
any treatment state
treated (Only after these treatments: fissure filling with oil, fissure filling with resin)
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 | — | — |
| Irradiation | — | — | Treatment | — | — |
| Coating | — | — | Treatment | — | — |
| impregnation with a colourless agent | — | — | — | impregnation with a colourless agent | — |
“—” means the cited source gives no value for that item, not “none”. Source: GB/T 16552—2017 Table B.1 (row for Beryl); 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 Red Beryl, the name register records "Bixbite", for which no restriction on use as a name is recorded; one further name in a non-Latin script is listed in the name register below (1 with no restriction recorded on use as a name).
Standard and listing namesThe basic name corresponding to Red Beryl in GB/T 16552—2017 Table A.1 is Beryl, but Red Beryl itself is not listed in the standard. The suggested listing name is Red Beryl. Sub-names and unacceptable namesThe trade name or synonym Bixbite is an old trade name and is not recommended on its own. Candidate search termsIts Japanese transliteration is only a candidate search term, based on the JJA/AGL gem names handbook 2025. Names in four languagesThe names are given in Simplified Chinese, Traditional Chinese, English (Red Beryl) and Japanese (a transliteration and a kanji name); these Japanese names are the entry's own, and the Japanese GSJ wording for them is not yet verified by this site. Institution usageAmong authority wordings, CIBJO lists “Red Beryl” (CIBJO Gemmological Laboratories Book 2024); the FTC source text has no wording for the name “Red Beryl” (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. Trade and mineralogical namesThe mineralogical name refers to the red gem variety of beryl.
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 (2) | ||||
| BixbiteEnglish | historical name | matched automatically | no restriction recorded | editorial ruling (no clause cited); Note: Former trade name. |
| ビックスバイトJapanese | transliteration | search candidate only | no restriction recorded | JJA/AGL Gemstone Nomenclature 2025 p.16 |
How each authority words this name: see Names › Authority wording.
- GSJ (Japan) formal name
- レッドベリル／赤緑柱石 (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)
- 绿柱石 (GB/T 16552—2017 Table A.1)
- Mineralogical name
- Red beryl gem variety
- Trade names and synonyms
- Bixbite (historical name)
Four-language names
- 简体中文
- 红色绿柱石
- 繁體中文
- 紅色綠柱石
- English
- Red Beryl
- 日本語
- レッドベリル／赤緑柱石
See also: Misleading and prohibited trade names · Supplementary name index
Classification
- Origin
- Natural materials
- Material domain
- Natural inorganic gem materials
- Browsing family
- Beryl 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 “Beryl” row of Table B.1: Heating Optimization; Filling Graded — see §5.4.1, Table 1; Irradiation Treatment; Coating Treatment. The full row, with the effect column, is on the Beryl 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 |
|---|---|---|---|---|
| Red Beryl | Beryl | red | an untreated tier is listed; impregnation with a colourless agent (Filled / Fracture-filled) | also called bixbite |
JJA/AGL definitions and nomenclature (2025 revision), table of principal gem names, p.16
How to read the JJA/AGL table: see the Gem treatments page.
What it is and how it's identified
The composition (phase) of Red Beryl is beryl; material facts marked with a class are registered from the clauses for beryl (the whole mineral species), not measured on Red Beryl separately. Per the beryl (whole mineral species) clauses: the structure is crystalline and hexagonal; Mohs hardness 7.5–8; density 2.67–2.9 g/cm³ (clause value 2.72, tolerance +0.18/−0.05, from which the limits are derived); the optic character is anisotropic, uniaxial negative, and refractive index is 1.56–1.6 (clause value 1.577–1.583, tolerance ±0.017, from which the limits are derived). The body colour of Red Beryl is red to purplish red, untreated; in Chapter 7 of the CIBJO Gemmological Laboratories Book, entries such as rhodolite garnet, almandine and amethyst also describe red or reddish colours (this site's note).
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 beryl (the whole mineral species), so they are not repeated on the Red Beryl page; see the material facts on the Beryl entry.
Items below that name the class they cover give the cited clause’s value for that whole class, not a measurement of Red Beryl (how to read class-level values).
Definition
Red Beryl — composition (phase): beryl
CIBJO Gemmological Laboratories Book 2024
Source & check 2026-09-22
- Source
- Fact checked on
- 2026-09-22
Structure
Red Beryl — structure (overall): crystalline
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- beryl (the whole mineral species)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.9 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Red Beryl — structure (crystal system): hexagonal
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- beryl (the whole mineral species)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.9 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Red Beryl — structure (crystal habit): typically six-sided prisms, now and then flat hexagonal plates; prism faces usually striated lengthwise.
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- beryl (the whole mineral species)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.9 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Durability
Red Beryl — Mohs hardness: 7.5–8
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
- beryl (the whole mineral species)
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.9 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Red Beryl — cleavage: imperfect in one direction
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- beryl (the whole mineral species)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.9 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Physical properties
Red Beryl — density: 2.67–2.9 g/cm³
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- beryl (the whole mineral species)
- Qualification
The clause we cite gives 2.72, with a stated tolerance of +0.18 / -0.05. The range shown here is worked out from that.
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.9 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Optical
Red Beryl — optic character: uniaxial, optically negative (anisotropic)
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- beryl (the whole mineral species)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.9 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Red Beryl — refractive index: 1.56–1.6
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- beryl (the whole mineral species)
- Qualification
The clause we cite gives 1.577–1.583, with a stated tolerance of ±0.017. The range shown here is worked out from that.
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.9 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Red Beryl — birefringence: 0.005–0.009
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- beryl (the whole mineral species)
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.9 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Red Beryl — pleochroism: weak to moderate, and varying with color: yellow is weak, showing green-yellow and yellow, or different tones of yellow; green is weak to moderate, showing blue-green and green, or different tones of green; pink-red is weak to moderate, showing light red and purple-red.
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
- What this covers
- beryl (the whole mineral species)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.9 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Red Beryl — optical effect (chatoyancy): seen
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- beryl (the whole mineral species)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.9 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Red Beryl — optical effect (asterism): seen; rare
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- What this covers
- beryl (the whole mineral species)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.9 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Red Beryl — body colour: Red to purplish red.
CIBJO Gemmological Laboratories Book 2024
- Treatment state
- untreated
- Qualification
In chapter 7 of the CIBJO Gemmological Laboratories Book, the colour descriptions of Rhodolite, Almandine, Amethyst and other entries also name red or a reddish colour.
- General note
- colour alone is not identity
Source & check 2026-09-22
- Source
- Fact checked on
- 2026-09-22
- CIBJO definitions
- chatoyancy, asterism
Quality factors
Red Beryl — quality factor (lustre): vitreous
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
- What this covers
- beryl (the whole mineral species)
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.1.9 (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): 1.58 / 2.79; Closest values: 1Qingtian Stone 1.565 / 2.77, 2Natural Conch Pearl / Natural Melo Pearl 1.595 / 2.84, 3Calcite 1.572 / 2.7, 4Brucite 1.57 / 2.89, 5Synthetic Emerald 1.565 / 2.69
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 Red Beryl under “Beryl” (§6.1.12): see identification on the Beryl entry; the required tests are listed on the CIBJO laboratory protocol table for Beryl.
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
Red Beryl has a direct definition in the CIBJO Gemmological Laboratories Book 2024 under the entry Red beryl; the CIBJO clause gives the mineral species as beryl and the mineral/gem variety as red beryl, noting that the CIBJO wording is quoted in full under Clause-level definitions on this page. The cross-check result is a direct CIBJO definition; no identically named English entry was found in this edition of the GB/T annex.
This table scrolls sideways on narrow screens.
| Term | Clause | Definition | Cross-check |
|---|---|---|---|
| Red beryl | 7.2.1.193 | Red to purplish red variety of beryl. Bixbite was an alternative, but generally unused name. It should not be used anymore, as there is the IMA approved mineral bixbyite (a Mn- oxide), named after the same person | 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.
- 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.
Related-entry tree for Beryl on this site: 11 entries listed by this site's parent-entry links; synthetic, treated and similar entries carry their recorded state after the name; this page (Red Beryl) is marked.
- Beryl
Sub-entries (9)
- Aquamarine
- Colombian Emerald
- Emerald
Sub-entries (1)
- Synthetic Emerald (Synthetic product)
- Goshenite
- Heliodor / Golden Beryl
- Maxixe Beryl
- Morganite
- Red Beryl
- Zambian Emerald
This table scrolls sideways on narrow screens.
| Page | Content | Status |
|---|---|---|
| Browsing family | Beryl minerals and gem varieties | Live |
| Treatments recorded for this material | Heated / Heat-treated (via parent material), Filled / Fracture-filled, Irradiated (via parent material), Coated (via parent material) | Live |
| Related articles | To be added (placeholder) | Planned |
Who maintains this page
The material facts in the Red Beryl 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.