Grenmarite
A variety of Minerals
What is Grenmarite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Grenmarite 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
- Yellowish brown to dark brown
- Hardness (Mohs)
- 4.5
- Rock tumbling
- Not recommended
- Density
- 3.568 g/cm³
- Streak
- Pale yellowish brown
Chemical Properties
- Chemical Formula
- Na4MnZr3(Si2O7)2O2F2
- Elements
- F, Mn, Na, O, Si, Zr
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Grenmarite FAQs
How do I identify Grenmarite?
Grenmarite can be identified by its hardness of 4.5 on the Mohs scale, Yellowish brown to dark brown color. Look for these key characteristics when examining specimens.
What color is Grenmarite?
Grenmarite typically appears in Yellowish brown to dark brown. Color can vary depending on impurities and formation conditions.
How hard is Grenmarite?
Grenmarite has a hardness of 4.5 on the Mohs scale. This gives it moderate hardness.
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