Esperita
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Esperite is a rare complex calcium lead zinc silicate (PbCa3Zn4(SiO4)4) related to beryllonite and trimerite that used to be called calcium larsenite.
Key facts
- Mineral.name
- Esperite
- Mineral.category
- Silicate mineral
- Mineral.image
- Esperite under UV light.jpg
- Mineral.caption
- Esperite under ultraviolet light
- Mineral.formula
- PbCa3Zn4(SiO4)4
- Mineral.IMAsymbol
- Epr
- Mineral.strunz
- 9.AB.15
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- P21/m
- Mineral.color
- White
- Mineral.habit
- Typically massive
- Mineral.cleavage
- Distinct on [010] and [100] – poor on [101]
- Mineral.fracture
- Conchoidal, brittle
- Mineral.mohs
- 5–5.5
- Mineral.luster
- Vitreous
- Mineral.refractive
- nα = 1.762 nβ = 1.770 nγ = 1.774
- Mineral.opticalprop
- Biaxial (−), 2V measured: 5° to 40°
via Wikipedia infobox
Wikidata facts
- Image
- Esperite under UV light.jpg
Show 8 more facts
- Commons category
- Esperite
- Nickel-Strunz 9th edition (updated 2009)
- 9.AB.15
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 9.AB.15
- crystal system
- monoclinic crystal system
- streak color
- white
- IMA Mineral Symbol
- Epr
- chemical formula
- PbCa₂(ZnSiO₄)₃
- Strunz 8th edition (series ID, updated)
- VIII/A.02
Sources (1)
via Wikidata · CC0
Article · Español
La esperita es un mineral de la clase de los nesosilicatos. Es un raro mineral descubierto en 1928 en una mina de Nueva Jersey (EE. UU.), siendo el nombre en honor de Esper F. Larsen Jr., petrólogo y profesor de geología en la universidad de Harvard. No tiene ninguna utilidad industrial.
Abstract from DBpedia / Wikipedia · CC BY-SA