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Calcio-olivine Ternesite & Jasmundite

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CSL116396

Calcio-olivine Ternesite & Jasmundite

Rare Mineral

Description Tabs

Description
Locality: 
Caspar Quarry, Bellerberg, Ettringen, Eifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
2.1 × 1.7 × 1.1 cm
Description

Calcio-Olivine is a calcium-silicate mineral of olivine group. It forms biege coloured masses with dark brown jasmundite and greenish ternesite. The Caspar quarry is the Type Locality for ternesite.

Mineral Data
What's on the rock

Calcio-olivine

Formula: 
Ca2SiO4
Strunz: 
9.AD.10
Hardness: 
0.0
Type Locality: 
Lakargi Mt., Verkhnechegemskaya caldera (Verkhni Chegem caldera; Upper Chegem caldera), Kabardino-Balkarian Republic, Northern Caucasus Region, Russia

Ternesite

Formula: 
Ca5(SiO4)2(SO4)
Strunz: 
9.AH.20
Crystal System: 
Orthorhombic
Hardness: 
4.5 - 5.0
Streak: 
white
Type Locality: 
Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany

Jasmundite

Formula: 
Ca11(SiO4)4O2S
Strunz: 
9.AG.70
Hardness: 
5.0
Type Locality: 
Ettringer Feld, Western lava flow, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany
Loranth Minerals

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