Pentahydrite
A variety of Minerals
What is Pentahydrite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Pentahydrite 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.
Quick Facts
Physical Properties
- Color
- Colourless, pale blue
- Hardness (Mohs)
- 2.5
- Rock tumbling
- Not recommended
- Streak
- White
Chemical Properties
- Chemical Formula
- MgSO4 · 5H2O
- Elements
- H, Mg, O, S
Also Known As
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Pentahydrite FAQs
How do I identify Pentahydrite?
Pentahydrite can be identified by its hardness of 2.5 on the Mohs scale, Colourless color. Look for these key characteristics when examining specimens.
What color is Pentahydrite?
Pentahydrite typically appears in Colourless, pale blue. Color can vary depending on impurities and formation conditions.
How hard is Pentahydrite?
Pentahydrite has a hardness of 2.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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