Gemstone profile and identification guide
Yellow Topaz
Yellow topaz is a durable topaz color variety used in faceted jewelry gems.
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Overview
Yellow topaz is a durable topaz color variety used in faceted jewelry gems.
Did you know? Colorless topaz is often treated to produce blue shades, but natural yellow topaz also exists.
Use this profile as a collector reference and educational guide for quick on-page comparison, then validate with the interactive identification system.
Identification
Name: Yellow Topaz
Scientific classification: Silicate (Topaz Color Variety)
Hardness: 8 Mohs
Transparency: transparent
Lustre: vitreous
Crystal system: Orthorhombic
Primary colour: Yellow
Secondary colour: Golden Yellow
Colour family: Oranges & Yellows
Topaz RI/SG and cleavage help distinguish from yellow sapphire and citrine.
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.
Final remaining profile set completed in targeted pass.
Physical Properties
Hardness category: hard
Hardness value: 8 Mohs
Chemical composition: Aluminum fluorosilicate [Al2SiO4(F,OH)2]
Crystal system: Orthorhombic
Common locations: Brazil, Pakistan, Russia, Sri Lanka, Nigeria
Learn more: Gem-A gemstone education resources.
Colour Variations
Yellow topaz in light yellow to honey-golden tones.
Optical effects: None specified in the current dataset.
Detailed Gemology
Mineral species: Topaz
Mineral group: Topaz group
Chemical formula: Aluminum fluorosilicate [Al2SiO4(F,OH)2]
Mohs hardness: 8
Crystal system: Orthorhombic
Lustre: vitreous
Transparency: transparent
Streak: White
Cleavage: Perfect basal cleavage
Fracture: Conchoidal to uneven
Specific gravity: 3.49-3.57
Refractive index: 1.61-1.64
Optical phenomena: None typically diagnostic
Colour range: Pale yellow to golden-honey
Common inclusions: Species-dependent inclusions and growth features
Geological environment: Species-dependent
Principal mining regions: Brazil, Pakistan, Russia, Sri Lanka, Nigeria
Important commercial sources: Yellow topaz is sourced from pegmatitic and alluvial topaz-producing regions
Historical significance: Recognized in gemological and lapidary trade.
Common treatments: Treatment status varies by product; disclose when present.
Synthetic or imitation forms: Imitations may exist depending on species.
Common look-alikes: Species-dependent look-alikes.
Jewellery uses: Used in rings, pendants, and earrings.
Care recommendations: Hard but has perfect cleavage; avoid sharp blows and high-impact settings.
Cross-check profile data with GIA Gem Encyclopedia and Mindat entry for Yellow Topaz.
Formation
Forms in granitic pegmatites and pneumatolytic/hydrothermal systems.
Origin
Yellow topaz is sourced from pegmatitic and alluvial topaz-producing regions
Uses
Best for: Used in rings, pendants, and earrings.
Ideal uses: Durable faceted jewelry with protective setting design.
Care
Hard but has perfect cleavage; avoid sharp blows and high-impact settings.
Need another candidate? Use advanced gemstone search or return to the identification guide.
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Yellow Topaz FAQ
How can I identify Yellow Topaz?
Compare hardness (8 Mohs), crystal system (Orthorhombic), colour profile, and lustre (vitreous) with your sample. Then cross-check related gemstones listed above.
What colour range does Yellow Topaz appear in?
Yellow topaz in light yellow to honey-golden tones.
Where is Yellow Topaz commonly used?
Durable faceted jewelry with protective setting design.. For maintenance, follow the care guidance in this profile.
Scientific References
GIA: general gemstone identity (reviewed) - Batch 10 factual verification pass.
Gem-A: gemological terminology and testing references (reviewed) - Batch 10 factual verification pass.
Mindat: mineral species and principal localities (reviewed) - Batch 10 factual verification pass.
International Gem Society: gem trade context and treatment overview (reviewed) - Batch 10 factual verification pass.