Tiffany stone
Bertrandite-rich Opalized Fluorite
A variety of Fluorite
What is Tiffany stone?
Tiffany Stone is a rare and beautiful rock composed primarily of opalized fluorite, bertrandite, chalcedony, and other trace minerals. It is prized for its striking patterns and purple-lavender hues. This stone is found almost exclusively in Utah, USA, and is often used in lapidary and collector applications.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Tiffany stone before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Tiffany stone Localities Map
See where Tiffany stone is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Purple, lavender, cream, white, black
- Hardness (Mohs)
- 5 - 6
- Density
- 2.5 - 2.9 g/cm³
- Streak
- White
- Luster
- Waxy, Sub-vitreous, Greasy
- Crystal System
- Amorphous (dominantly opal and chalcedony)
Chemical Properties
- Chemical Formula
- Complex mixture — primarily SiO₂ (opal/chalcedony), CaF₂ (fluorite), and Be₄Si₂O₇(OH)₂ (bertrandite)
- Elements
- Si, O, Ca, F, Be, H
Also Known As
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Tiffany stone FAQs
How do I identify Tiffany stone?
Tiffany stone can be identified by its hardness of 5 - 6 on the Mohs scale, Purple color, Waxy, Sub-vitreous, Greasy luster, Amorphous (dominantly opal and chalcedony) crystal system. Look for these key characteristics when examining specimens.
What color is Tiffany stone?
Tiffany stone typically appears in Purple, lavender, cream, white, black. Color can vary depending on impurities and formation conditions.
How hard is Tiffany stone?
Tiffany stone has a hardness of 5 - 6 on the Mohs scale. This gives it moderate hardness.
