Célestite is a collectible stone, very difficult to cut. The faceted specimens diffuse a pale blue color that earned it its name of celestine
To learn more about the mineralogy of Célestite, see mindat.org->
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Celestite
- Translations : Célestite, Coelestine, Celestina, Celestyn, 天青石 , Целестин
- Synonym : Coelstine, Eschwegite, Sicilianite.
- Etymology : From the Latin "coelestis" = celestial in allusion to the color of the first samples.
- Discovery: 1799 by Abraham Gottlieb Werner
- Type localityBell's Mill, Bellwood, Blair Co., Pennsylvania, USA.
Gemological data
- Chemical formula : SrSO4
- Hardness (Mohs) : 3 - 3.5
- Density : 3.96 -3.98
- Refractive index : nα = 1.619 - 1.622 nβ = 1.622 - 1.624 nγ = 1.630 - 1.632
- Crystal system : Orthorhombic
- Group : Baryte
The gallery
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- Celestite
