Ferrostrunzite
A variety of Strunzite Group
What is Ferrostrunzite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Ferrostrunzite 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.
Ferrostrunzite Localities Map
See where Ferrostrunzite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Creamy yellow, pale yellow, tan to light brown
- Hardness (Mohs)
- 4
- Density
- 2.57 g/cm³
- Streak
- White.
Chemical Properties
- Chemical Formula
- Fe2+Fe3+2(PO4)2(OH)2 · 6H2O
- Elements
- Fe, H, O, P
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Ferrostrunzite FAQs
How do I identify Ferrostrunzite?
Ferrostrunzite can be identified by its hardness of 4 on the Mohs scale, Creamy yellow color. Look for these key characteristics when examining specimens.
What color is Ferrostrunzite?
Ferrostrunzite typically appears in Creamy yellow, pale yellow, tan to light brown. Color can vary depending on impurities and formation conditions.
How hard is Ferrostrunzite?
Ferrostrunzite has a hardness of 4 on the Mohs scale. This gives it moderate hardness.