Parahopeite
A variety of Minerals
What is Parahopeite?
Zinc phosphate is an inorganic compound with the formula Zn3(PO4)2)(H2O)4. This white powder is widely used as a corrosion resistant coating on metal surfaces either as part of an electroplating process or applied as a primer pigment (see also red lead). It has largely displaced toxic materials based on lead or chromium, and by 2006 it had become the most commonly used corrosion inhibitor. Zinc phosphate coats better on a crystalline structure than bare metal, so a seeding agent is often used as a pre-treatment. One common agent is sodium pyrophosphate.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Parahopeite 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.
Parahopeite Localities Map
See where Parahopeite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Colourless; colourless in transmitted light.
- Hardness (Mohs)
- 3.5
- Density
- 3.304 g/cm³
Chemical Properties
- Chemical Formula
- Zn3(PO4)2 · 4H2O
- Elements
- H, O, P, Zn
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Parahopeite FAQs
How do I identify Parahopeite?
Parahopeite can be identified by its hardness of 3.5 on the Mohs scale, Colourless; colourless in transmitted light. color. Look for these key characteristics when examining specimens.
What color is Parahopeite?
Parahopeite typically appears in Colourless; colourless in transmitted light.. Color can vary depending on impurities and formation conditions.
How hard is Parahopeite?
Parahopeite has a hardness of 3.5 on the Mohs scale. This gives it moderate hardness.
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