Gemstone profile and identification guide
Topaz
Topaz is a Blue, Yellow silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.
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Overview
Topaz is a Blue, Yellow silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.
Use this profile as a collector reference and educational guide for quick on-page comparison, then validate with the interactive identification system.
Identification
Name: Topaz
Scientific classification: Silicate
Hardness: 8 Mohs
Transparency: transparent
Lustre: vitreous
Crystal system: Orthorhombic
Primary colour: Blue
Secondary colour: Yellow
Colour family: Blues & Cyans
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, Nigeria
Learn more: Gem-A gemstone education resources.
Colour Variations
Topaz is classified within the blues & cyans palette. Primary colour: blue. Secondary colour: yellow.
Optical effects: None specified in the current dataset.
Formation
Grows in high-temperature igneous rocks and hydrothermal veins.
Origin
Brazil, Pakistan, Russia, Nigeria
Uses
Best for: Jewellery, displays, and design accents.
Ideal uses: Versatile collections and polished showcases.
Care
Clean with warm soapy water and avoid sudden temperature changes.
Need another candidate? Use advanced gemstone search or return to the identification guide.
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Topaz FAQ
How can I identify 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 Topaz appear in?
Topaz is classified within the blues & cyans palette. Primary colour: blue. Secondary colour: yellow.
Where is Topaz commonly used?
Versatile collections and polished showcases.. For maintenance, follow the care guidance in this profile.
Scientific References
Reference data from GIA and Mindat mineral records.