Niningerite
A variety of Minerals
What is Niningerite?
Niningerite is a magnesium-iron-manganese sulfide mineral with the chemical formula MgS that is found in enstatite chondrite meteorites. Niningerite is the magnesium-dominant analog of keilite. This mineral is named after Harvey H. Nininger.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Niningerite 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.
Niningerite Localities Map
See where Niningerite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- grey
- Hardness (Mohs)
- 3.5 - 4
Chemical Properties
- Chemical Formula
- (Mg,Fe2+,Mn2+)S
- Elements
- Mg, S
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Niningerite FAQs
How do I identify Niningerite?
Niningerite can be identified by its hardness of 3.5 - 4 on the Mohs scale, grey color. Look for these key characteristics when examining specimens.
What color is Niningerite?
Niningerite typically appears in grey. Color can vary depending on impurities and formation conditions.
How hard is Niningerite?
Niningerite has a hardness of 3.5 - 4 on the Mohs scale. This gives it moderate hardness.
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