Fernandinite
A variety of Straczekite Group
What is Fernandinite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Fernandinite 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.
Fernandinite Localities Map
See where Fernandinite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Dull green; light green, dark olive-green, brownish green in transmitted light
- Hardness (Mohs)
- 2 - 3
- Density
- 3.07 g/cm³
- Streak
- Dark green
Chemical Properties
- Chemical Formula
- (Ca,K)(V5+,V4+,Fe2+)8O20 · 10H2O
- Elements
- Ca, Fe, H, K, O, V
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Fernandinite FAQs
How do I identify Fernandinite?
Fernandinite can be identified by its hardness of 2 - 3 on the Mohs scale, Dull green; light green color. Look for these key characteristics when examining specimens.
What color is Fernandinite?
Fernandinite typically appears in Dull green; light green, dark olive-green, brownish green in transmitted light. Color can vary depending on impurities and formation conditions.
How hard is Fernandinite?
Fernandinite has a hardness of 2 - 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.