Fluor-uvite
Fluoruvite
A variety of Tourmaline Group
What is Fluor-uvite?
A rare tourmaline found in conjunction with high quantities of boron, fluor-uvite has almost no practical use. It is largely sought by collectors who value it for its scarcity, color and (often) large crystals. Its name derives from Uva Province, Ceylon (now Sri Lanka), where it was first categorized in 1929.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Fluor-uvite 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.
Quick Facts
Physical Properties
- Color
- Black, greenish-black, brownish-black, brown, green, colourless
- Hardness (Mohs)
- 7.5
- Rock tumbling
- Tumbles well
- Density
- 2.97 - 3.14 g/cm³
- Streak
- Light-brown, light-green, white
Chemical Properties
- Chemical Formula
- CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F
- Elements
- Al, B, Ca, F, H, Mg, O, Si
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Fluor-uvite FAQs
How do I identify Fluor-uvite?
Fluor-uvite can be identified by its hardness of 7.5 on the Mohs scale, Black color. Look for these key characteristics when examining specimens.
What color is Fluor-uvite?
Fluor-uvite typically appears in Black, greenish-black, brownish-black, brown, green, colourless. Color can vary depending on impurities and formation conditions.
How hard is Fluor-uvite?
Fluor-uvite has a hardness of 7.5 on the Mohs scale. This makes it a relatively hard mineral suitable for jewelry.
