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.
Where to Find Tiffany stone
Tiffany stone is a variety of Fluorite. RockHoundR, the free-to-download rockhounding map from the Ruby Glint team, shows where collectors find fluorite in the US, with land-access notes for BLM land and national forests. Collecting is banned in national parks.
See where to find fluoriteAlways check the local rules and get the landowner's permission before you collect.
Quick Facts
Physical Properties
- Color
- Purple, lavender, cream, white, black
- Hardness (Mohs)
- 5 - 6
- Rock tumbling
- With care
- 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.
