Loseyite
A variety of Minerals
What is Loseyite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Loseyite 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.
Loseyite Localities Map
See where Loseyite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- White to colorless, may be tannish- brown due to staining; colourless in transmitted light. Examination of the type specimen at Harvard University suggests that the color of loseyite can vary when in daylight to "daylight LED" to fluorescent white light.
- Hardness (Mohs)
- 3
- Density
- 3.37 g/cm³
- Streak
- white
Chemical Properties
- Chemical Formula
- (Mn2+,Zn,Mg)4Zn3(CO3)2(OH)10
- Elements
- C, H, Mg, Mn, O, Zn

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Loseyite FAQs
How do I identify Loseyite?
Loseyite can be identified by its hardness of 3 on the Mohs scale, White to colorless color. Look for these key characteristics when examining specimens.
What color is Loseyite?
Loseyite typically appears in White to colorless, may be tannish- brown due to staining; colourless in transmitted light. Examination of the type specimen at Harvard University suggests that the color of loseyite can vary when in daylight to "daylight LED" to fluorescent white light.. Color can vary depending on impurities and formation conditions.
How hard is Loseyite?
Loseyite has a hardness of 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.


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