Selwynite
A variety of Minerals
What is Selwynite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Selwynite 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
- Deep purplish blue
- Hardness (Mohs)
- 4
- Rock tumbling
- Not recommended
- Streak
- Lavender, pale
Chemical Properties
- Chemical Formula
- NaK(Be,Al)Zr2(PO4)4 · 2H2O
- Elements
- Be, H, K, Na, O, P, Zr
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Selwynite FAQs
How do I identify Selwynite?
Selwynite can be identified by its hardness of 4 on the Mohs scale, Deep purplish blue color. Look for these key characteristics when examining specimens.
What color is Selwynite?
Selwynite typically appears in Deep purplish blue. Color can vary depending on impurities and formation conditions.
How hard is Selwynite?
Selwynite has a hardness of 4 on the Mohs scale. This gives it moderate hardness.
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