Loparite-(ce)
Loparite-(Ce)
A variety of Perovskite Subgroup
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What is Loparite-(ce)?
Loparite-(Ce) is a granular, brittle oxide mineral of the perovskite class. It is black to dark grey and may appear grey to white in reflected light on polished thin section with reddish brown internal reflections. It has the chemical formula of (Ce,Na,Ca)(Ti,Nb)O3. Nioboloparite is a variation of Loparite-(Ce) containing niobium. Loparite occurs as a primary phase in nepheline syenite intrusions and pegmatites. It is also found replacing perovskite in carbonatites. Loparite was first described for an occurrence in the Khibiny and Lovozero massifs, Kola peninsula and northern Russia. Crystal structures of loparite
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Loparite-(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.
Quick Facts
Physical Properties
- Color
- Black to grayish black
- Hardness (Mohs)
- 5.5
- Rock tumbling
- With care
- Density
- 4.85 g/cm³
- Streak
- Cinnamon-brown to brown
Chemical Properties
- Chemical Formula
- (Na,REE)Ti2O6
- Elements
- Na, O, Ti
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Loparite-(ce) FAQs
How do I identify Loparite-(ce)?
Loparite-(ce) can be identified by its hardness of 5.5 on the Mohs scale, Black to grayish black color. Look for these key characteristics when examining specimens.
What color is Loparite-(ce)?
Loparite-(ce) typically appears in Black to grayish black. Color can vary depending on impurities and formation conditions.
How hard is Loparite-(ce)?
Loparite-(ce) has a hardness of 5.5 on the Mohs scale. This gives it moderate hardness.