Torreyite
A variety of Minerals
What is Torreyite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Torreyite 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
- Rarely colourless, white, usually light brown with a red gray tint, rarely very pale blue gray; colourless in transmitted light.
- Hardness (Mohs)
- 3
- Rock tumbling
- Not recommended
- Density
- 2.65 g/cm³
- Streak
- White to colorless
Chemical Properties
- Chemical Formula
- (Mg,Mn2+)7☐2Mn2+2Zn4(SO4)2(OH)22 · 8H2O
- Elements
- H, Mg, Mn, O, S, Zn
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Torreyite FAQs
How do I identify Torreyite?
Torreyite can be identified by its hardness of 3 on the Mohs scale, Rarely colourless color. Look for these key characteristics when examining specimens.
What color is Torreyite?
Torreyite typically appears in Rarely colourless, white, usually light brown with a red gray tint, rarely very pale blue gray; colourless in transmitted light.. Color can vary depending on impurities and formation conditions.
How hard is Torreyite?
Torreyite has a hardness of 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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