Mantienneite
A variety of Minerals
What is Mantienneite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Mantienneite 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.
Mantienneite Localities Map
See where Mantienneite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Caramel brown to brownish honey brown
- Hardness (Mohs)
- 3
Chemical Properties
- Chemical Formula
- KMg2Al2Ti(PO4)4(OH)3 · 15H2O
- Elements
- Al, H, K, Mg, O, P, Ti
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Mantienneite FAQs
How do I identify Mantienneite?
Mantienneite can be identified by its hardness of 3 on the Mohs scale, Caramel brown to brownish honey brown color. Look for these key characteristics when examining specimens.
What color is Mantienneite?
Mantienneite typically appears in Caramel brown to brownish honey brown. Color can vary depending on impurities and formation conditions.
How hard is Mantienneite?
Mantienneite has a hardness of 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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