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
Maxixe Beryl
Also known asBlue Beryl (Maxixe) · Maxixe-type beryl
A deep blue variety of beryl whose colour is unstable and can fade in light; this property must be disclosed to buyers. 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 Maxixe Beryl forms and what gives its colourFormation setting, process and timescale, each finding graded and sourced
- How to identify Maxixe BerylIdentification points from the research literature; how far lab testing can go
- Treatments and enhancements of Maxixe BerylThe enhancements and treatments the GB/T and JJA/AGL tables list
- Caring for and wearing Maxixe BerylCleaning, heat, chemicals and light, as the cited sources give them
- Hardness, density and refractive index of Maxixe BerylEach value with its source and check date
- Maxixe 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?
- Listing and disclosing Maxixe BerylThe listing name to use; what must be disclosed before sale
- Standard clauses that define Maxixe 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
Maxixe beryl (Blue Beryl (Maxixe)) is a deep-blue gem/trade variety of beryl (Be3Al2Si6O18), not an independent mineral species. According to the CIBJO treatment-and-stability table, natural 'Blue Beryl (Maxixe)' is very rarely untreated, and the traded 'Maxixe-type' blue beryl (Blue Beryl (Maxixe-type)) is almost always irradiated to produce the blue colour, which is marked 'Unstable' — i.e. the colour fades with time or on exposure to light and heat. The colour is thus largely the result of (artificially irradiation-produced) colour centres rather than being intrinsic to a particular natural ore-forming stage.
Scope: Applies to explaining the definition, colour source and stability limits of Maxixe beryl as a blue variety of beryl; not used to describe the genesis of natural beryl deposits.
Sources CIBJO Gemstone Book 2022
Where it forms
Natural beryl (the host of Maxixe-type material) crystallises in settings such as granitic pegmatites.
Sources CIBJO Gemstone Book 2022
The blue colour of this variety comes mainly from colour centres produced by artificial irradiation in the beryl lattice, not from a specific natural ore-forming environment.
Sources CIBJO Gemstone Book 2022
How it forms, step by step
Start from beryl (usually colourless or pale).
Sources CIBJO Gemstone Book 2022
Apply irradiation to create colour centres in the beryl lattice, giving blue (almost always the case for 'Maxixe-type').
Sources CIBJO Gemstone Book 2022
The resulting colour is marked unstable — it fades with time or exposure to light and heat — and must be disclosed along with the treatment and stability.
Sources CIBJO Gemstone Book 2022
Link to appearance
The deep blue is caused by irradiation-produced colour centres; because these centres are unstable, the colour fades over time or on exposure to light and heat (CIBJO marks it Unstable).
Sources CIBJO Gemstone Book 2022
Timescale
The selected source gives no specific fading timescale, marking the stability only as 'Unstable'.
Sources CIBJO Gemstone Book 2022
Related base materials
- Beryl (Be3Al2Si6O18): variety-of | Maxixe beryl is a deep blue gem/trade variety of beryl, not an independent mineral species
Recorded localities
Authoritative sources list the localities below; the list is not exhaustive.
South America
- BrazilFirst found in 1917; the color fades in light. Similar material sold from about 1973 was irradiated "Maxixe-type".
Sources Gems & Gemology Fall 2008
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.
How it is identified
The blue of maxixe beryl can result from irradiation or similar treatment, and its colour and appearance can resemble natural blue beryl, so the eye cannot judge the colour cause, which may also fade with time. Determination relies on laboratory testing such as UV-visible and infrared spectroscopy to recognise the colour centre and separate it from natural colouration; the colour cause and treatment status must be judged by an accredited laboratory, and this entry provides no self-test threshold.
Evidence grade AScope: Safety boundary: appearance is insufficient to decide the colour cause and treatment status; determination requires testing by an accredited laboratory, and this entry gives no self-test threshold.
Origin determination concerns natural material, whereas Maxixe(-type) beryl is a beryl variety whose blue is commonly produced by irradiation treatment, to which natural origin determination does not apply. For such material the treated or synthetic status must itself first be established by an accredited laboratory using instrumental testing; until then an origin discussion is meaningless. Origin cannot be inferred from appearance or name; and even where some natural material is involved, any origin claim must be issued by an accredited laboratory for a specific specimen. No self-test criteria are given here.
Evidence grade AScope: Origin cannot be inferred from appearance or name; natural origin determination does not apply to this material and its treated/synthetic status must first be established by a laboratory; any conclusion must be issued by an accredited laboratory for a specific specimen; no self-test criteria are given here.
Other research findings
Maxixe beryl (Blue Beryl (Maxixe)) is a deep-blue gem/trade variety of beryl, not an independent mineral species.
Evidence grade BScope: Varietal/trade naming; carries no locality attribution.
Sources CIBJO Gemstone Book 2022
The traded Maxixe-type blue beryl (Blue Beryl (Maxixe-type)) is almost always irradiated to produce the blue colour.
Evidence grade BScope: As listed in the CIBJO treatment table; industry-typical, not absolute.
Sources CIBJO Gemstone Book 2022
The blue colour of Maxixe(-type) beryl is marked unstable and fades with time or on exposure to light and heat.
Evidence grade BScope: A stability/care attribute; no quantitative fading rate is given.
Sources CIBJO Gemstone Book 2022
Limits of this research
- Research status: Formation, occurrence or other material-specific findings found in authoritative sources
- Based on the CIBJO treatment/stability table; no quantitative data on Maxixe beryl's deposit or colour-centre mechanism are available here.
- Trade usage of 'Maxixe' vs 'Maxixe-type' varies historically; the source lists them only in tabular form.
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
- Maxixe Beryl
16 CFR Part 23 §23.1
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), 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
"Maxixe Beryl" is a market name rather than a mineral species name; before using it, verify: Laboratory identification required before the name is used.
Evidence
What this means for you
Before buying, check the recommended listing name "Maxixe Beryl" and any disclosed treatments on this page, and ask the seller for a grading report if in doubt.
Known uncertainty
- This entry's exact material identity is not fully settled.
- See “Disclosure and cautions” above
- Last reviewed
- 2026-09-01
Trade-name ruling
- Laboratory identification required before the name is used.
- Suggested listing name
- Maxixe Beryl
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
Maxixe Beryl — care (light): may fade or revert to its original colour in strong light; do not wear or leave it in strong light for extended periods; fades rapidly unless kept in the dark.
CIBJO Gemstone Book 2022
CIBJO Gemstone Book §6.2:special-care code f, special-care code g
- Treatment state
- any treatment state
Source & check 2026-09-26
- Source
- Fact checked on
- 2026-09-26
Maxixe Beryl — care (special care): irradiated blue from pale pink or colourless: extra special care (SC).
AGTA Gemstone Information Manual, 17th ed.
- Treatment state
- treated
- Only after these treatments
- irradiation
Source & check 2026-09-26
- Source
- AGTA Gemstone Information Manual, 17th edition (August 2026) (AGTA): p.VII, Gemstone Information Chart, Beryl Blue (Maxixe type) R, CARE REQUIRED / SPECIAL ADVICE (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Maxixe Beryl — care (display): Maxixe-type beryl (irradiated dark blue) fades in light
Gems & Gemology 1987 (Martin)
- Treatment state
- treated
- Only after these treatments
- irradiation
Source & check 2026-09-26
- Source
- Martin, “Gemstone Durability: Design to Display”, Gems & Gemology, Summer 1987: pp.66–67 fold-out chart, Beryl (Aquamarine & Others) row, DISPLAY column (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
LightCare of Maxixe Beryl: the CIBJO Gemstone Book states that it may fade or revert to its original colour in strong light, so do not wear or leave it in strong light for extended periods, and that it fades quickly if not kept in the dark. Special careOn special care, the American Gem Trade Association Gemstone Information Manual states that stones irradiated from light pink or colourless to blue need extra special care (marked SC), applying to irradiated stones only. DisplayOn display, Martin's Gemstone Durability: Design to Display states that the Maxixe type (irradiated to dark blue) fades on exposure to light, applying to irradiated stones only.
This table scrolls sideways on narrow screens.
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: irradiation)
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 | — | — |
“—” means the cited source gives no value for that item, not “none”. Source: GB/T 16552—2017 Table B.1 (row for Beryl)
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 Maxixe Beryl, the name register records "Blue Beryl (Maxixe)" and "Maxixe-type beryl", for which no restriction on use as a name is recorded (CIBJO Gemstone Book 2022 Annex 8 “Blue Beryl (Maxixe)”).
Names in four languagesMaxixe Beryl has Simplified Chinese, Traditional Chinese and Japanese names, and the English name Maxixe Beryl. Recommended listing nameThe suggested listing name is Maxixe Beryl. Institution usageThe wording recorded by CIBJO is Maxixe Beryl (CIBJO Gemmological Laboratories Book 2024); there is no wording for this name in the FTC text on file (checked), and GIA and Gem-A are unchecked; bodies without a recorded wording show the entry's own English name, which does not represent their position. Japanese namesThe Japanese name shown is the entry's own, and the GSJ (Japan) wording for this name is not yet verified. Chinese standard nameThe GB/T naming counterpart is beryl (GB/T 16552—2017 Table A.1); this name itself is not listed in the standard. Trade and mineralogical namesThe mineralogical description is a deep blue beryl variety whose colour fades on exposure to light; synonyms include Blue Beryl (Maxixe) (CIBJO Gemstone Book 2022 Annex 8), and a further trade name or synonym is Maxixe-type beryl, which this site classes as a market name.
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) | ||||
| Blue Beryl (Maxixe)English | synonym | matched automatically | no restriction recorded | CIBJO Gemstone Book 2022 Annex 8 “Blue Beryl (Maxixe)” |
| Maxixe-type berylEnglish | 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
- マシシェ・ベリル (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
- Deep blue beryl variety; colour fades on exposure to light
- Trade names and synonyms
- Maxixe-type beryl (market name) · Blue Beryl (Maxixe) (synonym)
Four-language names
- 简体中文
- 马克西绿柱石
- 繁體中文
- 馬克西綠柱石
- English
- Maxixe Beryl
- 日本語
- マシシェ・ベリル
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
Maxixe Beryl is mapped by applying the “Beryl” row of GB/T 16552—2017 Annex B, Table B.1, as GB/T 16552—2017 itself does not register Maxixe Beryl: heating is listed as optimization; filling is defined by the grades of GB/T 16552—2017; irradiation is listed as treatment; and coating is listed as treatment. What Table B.1 notes and how the filling grades are defined are explained on the Gem treatments page; the Table B.1 content including effects is on the Beryl page.
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.
What it is and how it's identified
Maxixe Beryl is itself composed of beryl (phase); in the GB/T 16553—2017 data, structure and physical and optical properties are recorded for beryl (the whole mineral species). Recorded for beryl (the whole mineral species): crystalline, hexagonal, with a hexagonal prismatic habit; Mohs hardness 7.5–8, with imperfect cleavage in one direction. Density for beryl (the whole mineral species) is 2.67–2.9 g/cm³; this site notes that the cited clause gives 2.72 with tolerance (+0.18/−0.05), from which the range is derived. Optic character for beryl (the whole mineral species) is anisotropic, uniaxial, negative; refractive index 1.56–1.6, this site noting that the cited clause gives 1.577–1.583 with tolerance (±0.017), from which the range is derived; birefringence 0.005–0.009. Lustre for beryl (the whole mineral species) is vitreous, for the untreated state.
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 Maxixe 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 Maxixe Beryl (how to read class-level values).
Definition
Maxixe Beryl — composition (phase): beryl
CIBJO Gemmological Laboratories Book 2024
Source & check 2026-09-22
- Source
- Fact checked on
- 2026-09-22
Structure
Maxixe 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
Maxixe 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
Maxixe 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
Maxixe 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
Maxixe 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
Maxixe 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
Maxixe 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
Maxixe 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
Maxixe 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
Maxixe 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
Maxixe 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
Maxixe 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
Maxixe Beryl — body colour: Medium to dark blue.
CIBJO Gemmological Laboratories Book 2024
- Treatment state
- untreated
- Qualification
In chapter 7 of the CIBJO Gemmological Laboratories Book, the colour descriptions of Haüyne, Lazurite, 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
- CIBJO definitions
- chatoyancy, asterism
Quality factors
Maxixe 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 Maxixe Beryl under “Aquamarine” (§6.1.8): see identification on the Aquamarine entry; the required tests are listed on the CIBJO laboratory protocol table for Aquamarine.
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
Maxixe Beryl has a clause-level definition in the CIBJO Gemmological Laboratories Book 2024 under the entry name Maxixe beryl: a medium to dark blue variety of beryl whose colour fades, the colour being produced by irradiation. Cross-check result for the corresponding clause: defined directly by CIBJO; the same English name was not found directly in the GB/T annex of this edition.
This table scrolls sideways on narrow screens.
| Term | Clause | Definition | Cross-check |
|---|---|---|---|
| Maxixe beryl | 7.2.1.144 | Medium to dark blue variety of beryl, with fading colour; colour is due to irradiation | 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.
- Gem-A – The Gemmological Association of Great Britain (United Kingdom).
- eCFR (United States). 16 CFR § 23.1 — Deception (general). In: 16 CFR Part 23 — Guides for the Jewelry, Precious Metals, and Pewter Industries.
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 (Maxixe 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 (via parent material), 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 Maxixe 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.