Modderite
A variety of Minerals
What is Modderite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Modderite 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.
Quick Facts
Physical Properties
- Color
- steel grey
- Hardness (Mohs)
- 4
- Rock tumbling
- Not recommended
- Streak
- grey
Chemical Properties
- Chemical Formula
- (Co,Fe)As
- Elements
- As, Co
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Modderite FAQs
How do I identify Modderite?
Modderite can be identified by its hardness of 4 on the Mohs scale, steel grey color. Look for these key characteristics when examining specimens.
What color is Modderite?
Modderite typically appears in steel grey. Color can vary depending on impurities and formation conditions.
How hard is Modderite?
Modderite has a hardness of 4 on the Mohs scale. This gives it moderate hardness.
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