Middendorfite
A variety of Minerals
What is Middendorfite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Middendorfite 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.
Middendorfite Localities Map
See where Middendorfite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Dark to bright orange
- Hardness (Mohs)
- 3 - 3.5
- Density
- 2.6 g/cm³
Chemical Properties
- Chemical Formula
- K3Na2Mn5Si12(O,OH)36 · 2H2O
- Elements
- H, K, Mn, Na, O, Si

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Middendorfite FAQs
How do I identify Middendorfite?
Middendorfite can be identified by its hardness of 3 - 3.5 on the Mohs scale, Dark to bright orange color. Look for these key characteristics when examining specimens.
What color is Middendorfite?
Middendorfite typically appears in Dark to bright orange. Color can vary depending on impurities and formation conditions.
How hard is Middendorfite?
Middendorfite has a hardness of 3 - 3.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.


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