Gemstone profile and identification guide
Chrome Garnet
Chrome garnet is a trade term for chromium-bearing green garnets, often pyrope-rich material.
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Overview
Chrome garnet is a trade term for chromium-bearing green garnets, often pyrope-rich material.
Did you know? Some chrome garnet material overlaps chemically with pyrope-spessartine and pyrope-rich green garnet fields.
Use this profile as a collector reference and educational guide for quick on-page comparison, then validate with the interactive identification system.
Identification
Name: Chrome Garnet
Scientific classification: Silicate (Garnet Group, Chromium-Rich Garnet Trade Term)
Hardness: 7.5 Mohs
Transparency: transparent
Lustre: vitreous
Crystal system: Isometric (Cubic)
Primary colour: Green
Secondary colour: Yellow Green
Colour family: Greens
Garnet isotropic optics and chromium-rich green colour support identification; composition may vary by source.
Verification Status
Status: verified-core-fields
Reference priority: GIA, Gem-A, Mindat, International Gem Society
Core identity, locality, and physical-property fields reviewed against standard gemological references.
Values are reported as practical gemological ranges where appropriate.
Physical Properties
Hardness category: hard
Hardness value: 7.5 Mohs
Chemical composition: Chromium-bearing garnet composition (commonly pyrope-rich)
Crystal system: Isometric (Cubic)
Common locations: Tanzania, Kenya, Madagascar, Russia
Learn more: Gem-A gemstone education resources.
Colour Variations
Chromium-colored green garnet in pyrope-rich to mixed garnet compositions.
Optical effects: None specified in the current dataset.
Detailed Gemology
Mineral species: Chromium-bearing garnet (trade category)
Mineral group: Garnet group
Chemical formula: Chromium-bearing garnet composition (commonly pyrope-rich)
Mohs hardness: 7.5
Crystal system: Isometric (Cubic)
Lustre: vitreous
Transparency: transparent
Streak: White
Cleavage: None
Fracture: Conchoidal to uneven
Specific gravity: 3.70-3.90
Refractive index: 1.74-1.78
Optical phenomena: None typically diagnostic
Colour range: Yellow-green to deep green
Common inclusions: Crystals, fingerprints, growth structures
Geological environment: Metamorphic terrains and mantle-related source contexts
Principal mining regions: Tanzania, Kenya, Madagascar, Russia
Important commercial sources: Commercial chromium-rich green garnets are sourced mainly from East Africa
Historical significance: A modern trade category for chromium-rich green garnets.
Common treatments: Generally untreated.
Synthetic or imitation forms: Glass and synthetic green stones are common imitations.
Common look-alikes: Tsavorite, demantoid, chrome diopside
Jewellery uses: Used as faceted green gemstones in jewellery.
Care recommendations: Good durability for regular jewellery wear with standard care against impact.
Cross-check profile data with GIA Gem Encyclopedia and Mindat entry for Chrome Garnet.
Formation
Forms in metamorphic and mantle-derived environments where chromium enters garnet chemistry.
Origin
Commercial chromium-rich green garnets are sourced mainly from East Africa
Uses
Best for: Used as faceted green gemstones in jewellery.
Ideal uses: Rings, pendants, and earrings requiring durable green faceted stones.
Care
Good durability for regular jewellery wear with standard care against impact.
Need another candidate? Use advanced gemstone search or return to the identification guide.
Related gemstones by colour
Related gemstones by hardness
Commonly confused gemstones
Chrome Garnet FAQ
How can I identify Chrome Garnet?
Compare hardness (7.5 Mohs), crystal system (Isometric (Cubic)), colour profile, and lustre (vitreous) with your sample. Then cross-check related gemstones listed above.
What colour range does Chrome Garnet appear in?
Chromium-colored green garnet in pyrope-rich to mixed garnet compositions.
Where is Chrome Garnet commonly used?
Rings, pendants, and earrings requiring durable green faceted stones.. For maintenance, follow the care guidance in this profile.
Scientific References
GIA: general gemstone identity (reviewed) - Batch 03 factual verification pass.
Gem-A: gemological terminology and testing references (reviewed) - Batch 03 factual verification pass.
Mindat: mineral species and principal localities (reviewed) - Batch 03 factual verification pass.
International Gem Society: gem trade context and treatment overview (reviewed) - Batch 03 factual verification pass.