Strunzite
A variety of Minerals
What is Strunzite?
Strunzite (MnFe2(PO4)2(OH)2 · 6H2O) is a light yellow mineral of the strunzite group, first discovered in 1957. It crystallizes in the triclinic system and has a light, vitreous luster, a specific gravity of 2.52 and a Mohs hardness of 4. Associated minerals include beraunite, quartz and strengite. It is named after Hugo Strunz, a Professor of Mineralogy at Technical University, Berlin.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Strunzite 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.
Strunzite Localities Map
See where Strunzite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Straw-yellow to light brownish yellow
- Hardness (Mohs)
- 4
- Density
- 2.49 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- Mn2+Fe3+2(PO4)2(OH)2 · 6H2O
- Elements
- Fe, H, Mn, O, P
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Strunzite FAQs
How do I identify Strunzite?
Strunzite can be identified by its hardness of 4 on the Mohs scale, Straw-yellow to light brownish yellow color. Look for these key characteristics when examining specimens.
What color is Strunzite?
Strunzite typically appears in Straw-yellow to light brownish yellow. Color can vary depending on impurities and formation conditions.
How hard is Strunzite?
Strunzite has a hardness of 4 on the Mohs scale. This gives it moderate hardness.
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