Chestermanite
A variety of Minerals
What is Chestermanite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Chestermanite 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.
Chestermanite Localities Map
See where Chestermanite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- greyish-green to black in coarse crystals
- Hardness (Mohs)
- 6
- Density
- 3.65 g/cm³
- Streak
- Pale grayish green
Chemical Properties
- Chemical Formula
- Mg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2
- Elements
- Al, B, Fe, Mg, Mn, O, Sb
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Chestermanite FAQs
How do I identify Chestermanite?
Chestermanite can be identified by its hardness of 6 on the Mohs scale, greyish-green to black in coarse crystals color. Look for these key characteristics when examining specimens.
What color is Chestermanite?
Chestermanite typically appears in greyish-green to black in coarse crystals. Color can vary depending on impurities and formation conditions.
How hard is Chestermanite?
Chestermanite has a hardness of 6 on the Mohs scale. This gives it moderate hardness.
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