Holdenite
A variety of Minerals
What is Holdenite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Holdenite 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.
Holdenite Localities Map
See where Holdenite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Pink, yellowish red, deep red; pink in transmitted light.
- Hardness (Mohs)
- 4
- Density
- 4.27 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- (Mn2+,Mg)6Zn3(AsO4)2(SiO4)(OH)8
- Elements
- As, H, Mg, Mn, O, Si, Zn
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Holdenite FAQs
How do I identify Holdenite?
Holdenite can be identified by its hardness of 4 on the Mohs scale, Pink color. Look for these key characteristics when examining specimens.
What color is Holdenite?
Holdenite typically appears in Pink, yellowish red, deep red; pink in transmitted light.. Color can vary depending on impurities and formation conditions.
How hard is Holdenite?
Holdenite has a hardness of 4 on the Mohs scale. This gives it moderate hardness.
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