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Natural inorganic gem materials · Trade name: geographic / origin-linked name · Natural identity; treatment status unknown

Mali Garnet

A trade name for garnet of mixed andradite and grossular composition, associated with Mali as a source; not a separate mineral species. 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.

Care and wear

What this page can answer

This page covers

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

Mali garnet is a trade/commercial name for a mixed-species garnet described as an andradite-grossular mixture rather than an independent mineral species. Garnet is a group of closely related species of essentially the same structure but varying chemistry; andradite and grossular are both commercially important garnet species, and many consist of two or more species in combination. The available sources support that multi-component mixtures occur in the garnet group (e.g. a pyrope-spessartine-almandine-grossular mixture), but the cited authoritative sources give no definition of the name 'Mali garnet', so this entry does not pass andradite (e.g. demantoid) or grossular (e.g. tsavorite) formation facts off as the formation and definition of Mali garnet.

Scope: Used to explain the identity boundary of 'Mali garnet' as a commercial / trade name for andradite-grossular mixed garnet; facts about closely related mineral species such as demantoid and tsavorite are not substituted for its definition and origin.

Sources GIA Garnet Description

Where it forms

Metamorphic and contact-metamorphic/skarn settings: calcic garnets such as grossular and andradite are common there; the cited sources give no occurrence for 'Mali garnet' itself.

Sources GIA Garnet Description

The cited sources give no formation setting for 'Mali garnet'; nothing is inferred here.

Sources GIA Garnet Description

How it forms, step by step

  1. Under metamorphic or contact-metamorphic (skarn) conditions, suitable calcium-rich bulk chemistry promotes crystallization of calcic garnets (grossular, andradite).

    Sources GIA Garnet Description
  2. Because the garnet species share a similar structure, andradite and grossular can form mixed-composition material.

    Sources GIA Garnet Description
  3. 'Mali garnet' is not separately defined in the cited sources; its exact composition and formation pathway cannot be verified from the available text.

    Sources GIA Garnet Description

Link to appearance

The cited sources describe no appearance specific to 'Mali garnet'; no colour is inferred under this name.

Sources GIA Garnet Description

Timescale

The cited sources give no formation timescale for 'Mali garnet'.

Sources GIA Garnet Description

Related base materials

  • Andradite-grossular (mixed-species garnet): trade-name-of | Mali garnet is a commercial/trade name for mixed andradite-grossular garnet
  • Garnet group (nesosilicates): group-of | Belongs to the garnet mineral group

Recorded localities

Authoritative sources name a single or principal locality.

Locality sketch mapLand outlines only; the map does not depict any national or regional boundary. Dots mark approximate positions. Base map: Natural Earth (public domain).

Africa

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.

Other research findings

Andradite and grossular are both commercially important garnet species; more than twenty garnet species are named, but only five are commercially important as gems.

Evidence grade A

Scope: A species-level framing of garnet, used here to fix Mali garnet's parent species.

Sources GIA Garnet Description

Many garnets in the group are chemical mixtures of two or more species, and mixed-composition calcic garnets occur in nature.

Evidence grade A

Scope: A general garnet-group fact; not specific to the composition of 'Mali garnet'.

Sources GIA Garnet Description

'Mali garnet' is not separately defined in the cited authoritative sources; it should be treated as a trade/commercial name for an andradite-grossular mixed garnet rather than an independent mineral species.

Evidence grade C

Scope: A boundary based on an absence in the sources rather than a direct statement; demantoid or tsavorite facts must not stand in for its definition.

Sources GIA Garnet Description

Taken together, the cited sources indicate that 'Mali garnet' should be framed as a trade name for an andradite-grossular mixed garnet; its definition and formation conditions await authoritative clarification.

Evidence grade C

Scope: A synthesis rather than a direct source statement, limited by the absence of a definition.

Sources GIA Garnet Description

Limits of this research

  • Research status: Only partial material-specific findings found; gaps are stated as gaps
  • The cited authoritative sources give no definition, composition range or formation conditions for 'Mali garnet' itself.
  • Its identity conclusion rests on an absence in the sources and is a terminology-level judgement, not a mineralogical ruling.
  • Facts about demantoid (andradite) or tsavorite (grossular) must not stand in for the formation of 'Mali garnet'.

Methodology

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
Mali Garnet (andradite-grossular mixed garnet)

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)

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

"Mali Garnet" is a market name rather than a mineral species name; before using it, verify: Trade name rather than a mineralogical species name.

Evidence

What this means for you

Before buying, check the recommended listing name "Mali Garnet (andradite-grossular mixed garnet)" 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

Trade-name ruling

  • Trade name rather than a mineralogical species name.
Suggested listing name
Mali Garnet (andradite-grossular mixed garnet)

Care and wear

The item-by-item care advice that the GIA Care and Cleaning Guide gives for the whole class, and so for Mali Garnet, is set out in full under care on the Garnet entry.

Care

Each row's “Source & check” expands to the full source; the date beside it is the fact check date.

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.

TreatmentMarket frequency (CIBJO)Stability (CIBJO)GB/T 16552 categoryJJA/AGL listingIdentification leads
Heating——Optimization——
Filling——Graded — see §5.4.1, Table 1——

“—” means the cited source gives no value for that item, not “none”. Source: GB/T 16552—2017 Table B.1 (row for Garnet)

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

Recommended listing nameThe suggested listing name for Mali Garnet is Mali Garnet (andradite-grossular mixed garnet), and its identity level is trade name: origin/geographical association. Names in four languagesFour-language names are given in Simplified Chinese, Traditional Chinese, English (Mali Garnet) and Japanese; for the formal name of Japan's GSJ, the entry has its own Japanese name, and the wording of Japan's GSJ for the name Mali Garnet is not yet verified by this site. Trade and mineralogical namesThe mineralogical name is a trade name for a garnet of mixed andradite and grossular composition. Chinese standard nameOn Chinese standard naming, this name is not listed in the original and corresponds to garnet, under GB/T 16552—2017. Institution usageOn authority wording, CIBJO records Mali Garnet, in CIBJO Gemmological Laboratories Book 2024; the FTC text on file has no wording for this name (checked); GIA and Gem-A are unchecked. Bodies without a recorded wording show the entry's own English name, which does not represent their position.

Authority wording

GIA, FTC, CIBJO, Gem-A
Mali Garnet (on record for CIBJO (CIBJO Gemmological Laboratories Book 2024 §7.2.1.139); no wording for this name in the FTC text on file; GIA, Gem-A unchecked — bodies without a recorded wording show the entry's own English name)
GSJ (Japan) formal name
マリガーネット (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)
石榴石 (GB/T 16552—2017 §5.1.2.1 b))
Mineralogical name
Andradite-grossular mixed garnet trade variety

Four-language names

简体中文
马里石榴石
繁體中文
馬裏石榴石
English
Mali Garnet
日本語
マリガーネット

See also: Misleading and prohibited trade names · Supplementary name index

Classification

Origin
Natural materials
Material domain
Natural inorganic gem materials
Browsing family
Garnet-group minerals and gem varieties
Identity tier
Trade name: geographic / origin-linked name
Mineral chemical class
Silicates
Construction or treatment status
Natural identity; treatment status unknown

Treatments listed by standards

For Mali Garnet, this site applies the "Garnet" row of GB/T 16552—2017 Annex B, Table B.1: heating falls under optimization, and filling is graded separately, with the grades defined on this site's Gem treatments page. The full row with the effect column is on this site's Garnet entry, and what Table B.1 is is likewise explained on the Gem treatments page.

GB/T 16552-2017, Annex B, Table B.1

Under the “Garnet” row of Table B.1: Heating Optimization; Filling Graded — see §5.4.1, Table 1. The full row, with the effect column, is on the Garnet 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

The composition (phase) of Mali Garnet is registered from the CIBJO Blue Book as garnet group; structure, hardness, cleavage, density, optic character, optical effects and lustre take the GB/T 16553—2017 values for garnet (the whole mineral group), not measurements of Mali Garnet itself. For garnet (the whole mineral group): structure crystalline, cubic, with rhombic dodecahedral or icositetrahedral crystals, or combinations of the two; Mohs hardness 7–8, cleavage none; density 3.5–4.3 g/cm³, the register taking the overall value although the clause has finer sub-ranges, as explained in this site's general notes; optic character isotropic, often with anomalous extinction; asterism visible but rare, usually four-rayed and occasionally six-rayed (almandine), and colour change visible; untreated, lustre vitreous to subadamantine.

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 garnet (the whole mineral group), so they are not repeated on the Mali Garnet page; see the material facts on the Garnet entry.

Items below that name the class they cover give the cited clause’s value for that whole class, not a measurement of Mali Garnet (how to read class-level values).

Definition

Mali Garnet — composition (phase): garnet group

CIBJO Gemmological Laboratories Book 2024

Source & check 2026-09-22
Source
Fact checked on
2026-09-22

Structure

Mali Garnet — structure (overall): crystalline

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
garnet (the whole mineral group)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.15 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Mali Garnet — structure (crystal system): cubic

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
garnet (the whole mineral group)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.15 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Mali Garnet — structure (crystal habit): rhombic dodecahedra, tetragonal trisoctahedra, or crystals combining the two forms.

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
garnet (the whole mineral group)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.15 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Durability

Mali Garnet — Mohs hardness: 7–8

GB/T 16553—2017

123456789107–8References (diamond = value, bar = range; below)

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))

Mohs hardnessSource: GB/T 16553—2017
Does this standard apply
applies to this entry
What this covers
garnet (the whole mineral group)
Source & check 2026-09-21
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.15 (locator checked 2026-09-21)
Fact checked on
2026-09-21

Mali Garnet — cleavage: none

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
garnet (the whole mineral group)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.15 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Physical properties

Mali Garnet — density: 3.5–4.3 g/cm³

GB/T 16553—2017

0.51.52.53.54.55.56.57.53.5–4.3
Specific gravitySource: GB/T 16553—2017
Does this standard apply
applies to this entry
What this covers
garnet (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): §5.1.15 (locator checked 2026-09-21)
Fact checked on
2026-09-21

Optical

Optical effects on record: asterismrepresentative example: cause in Star Sapphire (schematic)colour change

Mali Garnet — optic character: isotropic, commonly with anomalous extinction

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
garnet (the whole mineral group)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.15 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Mali Garnet — birefringence: none

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
garnet (the whole mineral group)
Source & check 2026-09-21
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.15 (locator checked 2026-09-21)
Fact checked on
2026-09-21

Mali Garnet — pleochroism: none

GB/T 16553—2017

Treatment state
untreated
Does this standard apply
applies to this entry
What this covers
garnet (the whole mineral group)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.15 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Mali Garnet — optical effect (asterism): seen; rare; generally a four-pointed star; occasionally a six-rayed star (almandine).

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
garnet (the whole mineral group)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.15 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Mali Garnet — optical effect (colour change): seen

GB/T 16553—2017

Does this standard apply
applies to this entry
What this covers
garnet (the whole mineral group)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.15 (locator checked 2026-09-26)
Fact checked on
2026-09-26

Mali Garnet — body colour: Yellowish green to yellow, to yellowish orange and orangish, brownish red.

CIBJO Gemmological Laboratories Book 2024

Treatment state
untreated
Qualification

In chapter 7 of the CIBJO Gemmological Laboratories Book, the colour descriptions of Sphalerite, Titanite / Sphene, Andesine and other entries also name green or a greenish colour.

General note
colour alone is not identity
Source & check 2026-09-22
Source
Fact checked on
2026-09-22
CIBJO definitions
asterism, colour change

Quality factors

Mali Garnet — quality factor (lustre): vitreous to subadamantine

GB/T 16553—2017

Treatment state
untreated
Does this standard apply
applies to this entry
What this covers
garnet (the whole mineral group)
Source & check 2026-09-26
Source
  • GB/T 16553—2017 Gems — Testing (GB/T): §5.1.15 (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.

Testing and market

The CIBJO laboratory protocol covers Mali Garnet under “Garnet” (§6.1.38): see identification on the Garnet entry; the required tests are listed on the CIBJO laboratory protocol table for Garnet.

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

This table scrolls sideways on narrow screens.

TermClauseDefinitionCross-check
Mali garnet7.2.1.139Yellowish green to yellow, to yellowish orange and orangish, brownish red variety of garnet with a mixed andradite-grossular compositionDefined 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

16 CFR Part 23
Naming rule §23.1 · Source

Sources

Further reading

Related entries and topic cluster

Parent entry and related pages on this site. Rows marked “Planned” are suggested new content and have no link yet.

Related-entry tree for Garnet on this site: 10 entries listed by this site's parent-entry links; synthetic, treated and similar entries carry their recorded state after the name; this page (Mali Garnet) is marked.

This table scrolls sideways on narrow screens.

PageContentStatus
Browsing familyGarnet-group minerals and gem varietiesLive
Treatments recorded for this materialHeated / Heat-treated (via parent material), Filled / Fracture-filled (via parent material)Live
Related articlesTo be added (placeholder)Planned

Who maintains this page

The material facts in the Mali Garnet 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.

Facts editor
June
Reviewer
Ralph
How facts are checked
Each fact is matched to the clause it cites; facts checked between 2026-09-21 and 2026-09-26
Last revised
2026-10-12
Purpose
Lets buyers and sellers check naming, disclosure and material facts clause by clause.

Spotted an error? Report it on the forum