Brunogeierite
A variety of Minerals
What is Brunogeierite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Brunogeierite 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.
Brunogeierite Localities Map
See where Brunogeierite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Grey-black
- Hardness (Mohs)
- 5
- Density
- 5.51 g/cm³
Chemical Properties
- Chemical Formula
- Ge4+Fe2+2O4 Some solid solution towards magnetite: Fe2+Ge4+ = 2Fe3+.
- Elements
- Fe, Ge, O
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Brunogeierite FAQs
How do I identify Brunogeierite?
Brunogeierite can be identified by its hardness of 5 on the Mohs scale, Grey-black color. Look for these key characteristics when examining specimens.
What color is Brunogeierite?
Brunogeierite typically appears in Grey-black. Color can vary depending on impurities and formation conditions.
How hard is Brunogeierite?
Brunogeierite has a hardness of 5 on the Mohs scale. This gives it moderate hardness.
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