Ferrowyllieite
A variety of Wyllieite Group
What is Ferrowyllieite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Ferrowyllieite 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.
Ferrowyllieite Localities Map
See where Ferrowyllieite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Greenish black, also dark bluish green,dark greenish gray, dark green, dark brown.
- Hardness (Mohs)
- 4
- Density
- 3.68 g/cm³
- Streak
- Light gray
Chemical Properties
- Chemical Formula
- (Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3
- Elements
- Al, Ca, Fe, Mg, Mn, Na, O, P
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Ferrowyllieite FAQs
How do I identify Ferrowyllieite?
Ferrowyllieite can be identified by its hardness of 4 on the Mohs scale, Greenish black color. Look for these key characteristics when examining specimens.
What color is Ferrowyllieite?
Ferrowyllieite typically appears in Greenish black, also dark bluish green,dark greenish gray, dark green, dark brown.. Color can vary depending on impurities and formation conditions.
How hard is Ferrowyllieite?
Ferrowyllieite has a hardness of 4 on the Mohs scale. This gives it moderate hardness.