Opalized Fluorite
Tiffany Stone
A variety of Fluorite
What is Opalized Fluorite?
Opalized Fluorite is a rock predominantly composed of fluorite complemented by opal, calcite, dolomite, quartz, chalcedony, and other minerals. The most prized variety, Tiffany Stone, is a rare purple, blue, and white gem mined exclusively at the Brush Wellman beryllium mine in Spor Mountain, western Utah. In recent times, there has been a significant influx of less expensive materials from China and Turkey into the market, frequently leading to confusion and misidentification with Tiffany Stone.
Optical Properties
- Refractive Index
- 1.432-1.436
- Pleochroism
- None
- Optical Character
- Isotropic
- Dispersion
- 0.007
Discover Values
This stone excels in beauty, collection value.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Opalized Fluorite 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 Opalized Fluorite
Opalized Fluorite 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, blue purple
- Hardness (Mohs)
- 5 - 5.5
- Rock tumbling
- With care
- Density
- 2.6 g/cm³
- Streak
- White
- Luster
- Greasy, Resinous, Waxy, Sub-vitreous
- Crystal System
- Amorphous
Chemical Properties
- Chemical Formula
- CaF2
- Elements
- Ca, F
Also Known As
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Opalized Fluorite FAQs
How do I identify Opalized Fluorite?
Opalized Fluorite can be identified by its hardness of 5 - 5.5 on the Mohs scale, Purple color, Greasy, Resinous, Waxy, Sub-vitreous luster, Amorphous crystal system. Look for these key characteristics when examining specimens.
What color is Opalized Fluorite?
Opalized Fluorite typically appears in Purple, blue purple. Color can vary depending on impurities and formation conditions.
How hard is Opalized Fluorite?
Opalized Fluorite has a hardness of 5 - 5.5 on the Mohs scale. This gives it moderate hardness.
