Guidottiite
A variety of Minerals
What is Guidottiite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Guidottiite 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.
Guidottiite Localities Map
See where Guidottiite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Black
- Hardness (Mohs)
- 4 - 4.5
- Density
- 3.264 g/cm³
Chemical Properties
- Chemical Formula
- Mn2Fe3+(Fe3+SiO5)(OH)4
- Elements
- Fe, H, Mn, O, Si

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Guidottiite FAQs
How do I identify Guidottiite?
Guidottiite can be identified by its hardness of 4 - 4.5 on the Mohs scale, Black color. Look for these key characteristics when examining specimens.
What color is Guidottiite?
Guidottiite typically appears in Black. Color can vary depending on impurities and formation conditions.
How hard is Guidottiite?
Guidottiite has a hardness of 4 - 4.5 on the Mohs scale. This gives it moderate hardness.


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