Zirsilite-(ce)
Zirsilite-(Ce)
A variety of Eudialyte group
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What is Zirsilite-(ce)?
Zirsilite-(Ce) is a very rare mineral of the eudialyte group, with formula (Na,[])12(Ce,Na)3Ca6Mn3Zr3NbSi(Si9O27)2(Si3O9)2O(OH)3(CO3)•H2O. The original formula was extended to show the presence of cyclic silicate groups and the presence of silicon at the M4 site, according to the nomenclature of the eudialyte group.according to the nomenclature of eudialyte group. Zirsilite-(Ce) differs from carbokentbrooksite in cerium-dominance over sodium only. Both minerals are intimately associated. The only other currently known representative of the eudialyte group having rare earth elements (in particular cerium, as suggested by the "-Ce)" Levinson suffix in the name) in dominance is johnsenite-(Ce).
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Zirsilite-(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.
Zirsilite-(ce) Localities Map
See where Zirsilite-(ce) is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Key Characteristics
Formation of Zirsilite-(ce)
Zirsilite-(Ce) and carbokentbrooksite occur in pegmatites of Darai-Pioz alkaline massif, Tajikistan - a locality known for many rare minerals. They are found as replacements of grains and crystals of eudialyte. The minerals are associated with aegirine, ekanite, microcline, polylithionite, quartz, stillwellite-(Ce) (silicates), pyrochlore-group mineral, fluorite, calcite, and galena.
Quick Facts
Physical Properties
- Color
- Creamy white, yellow or orange
- Hardness (Mohs)
- 5
- Density
- 3.15 g/cm³
- Streak
- white
Chemical Properties
- Chemical Formula
- Na11-12(Ce,Na)3Ca6Mn3Zr3Nb(Si19O55)(Si3O9)2(CO3)(OH)3 · H2O
- Elements
- C, Ca, Ce, H, Mn, Na, Nb, O, Si, Zr
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Zirsilite-(ce) FAQs
How do I identify Zirsilite-(ce)?
Zirsilite-(ce) can be identified by its hardness of 5 on the Mohs scale, Creamy white color. Look for these key characteristics when examining specimens.
What color is Zirsilite-(ce)?
Zirsilite-(ce) typically appears in Creamy white, yellow or orange. Color can vary depending on impurities and formation conditions.
How hard is Zirsilite-(ce)?
Zirsilite-(ce) has a hardness of 5 on the Mohs scale. This gives it moderate hardness.
What is the formation of zirsilite-(ce) of Zirsilite-(ce)?
Zirsilite-(Ce) and carbokentbrooksite occur in pegmatites of Darai-Pioz alkaline massif, Tajikistan - a locality known for many rare minerals. They are found as replacements of grains and crystals of eudialyte. The minerals are associated with aegirine, ekanite, microcline, polylithionite, quartz, stillwellite-(Ce) (silicates), pyrochlore-group mineral, fluorite, calcite, and galena.
