Stillwellite-(ce)
Stillwellite-(Ce)
A variety of Minerals
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What is Stillwellite-(ce)?
Stillwellite-(Ce) is a rare-earth boro-silicate mineral with formula: (Ce,La,Ca)BSiO5.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Stillwellite-(ce) 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.
Stillwellite-(ce) Localities Map
See where Stillwellite-(ce) is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Pale violet-gray, light pink, brownish yellow, orange
- Hardness (Mohs)
- 6.5
- Density
- 4.67 g/cm³
- Streak
- white
Chemical Properties
- Chemical Formula
- (Ce,La,Ca)BSiO5
- Elements
- B, Ca, Ce, La, O, Si
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Stillwellite-(ce) FAQs
How do I identify Stillwellite-(ce)?
Stillwellite-(ce) can be identified by its hardness of 6.5 on the Mohs scale, Pale violet-gray color. Look for these key characteristics when examining specimens.
What color is Stillwellite-(ce)?
Stillwellite-(ce) typically appears in Pale violet-gray, light pink, brownish yellow, orange. Color can vary depending on impurities and formation conditions.
How hard is Stillwellite-(ce)?
Stillwellite-(ce) has a hardness of 6.5 on the Mohs scale. This gives it moderate hardness.
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