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Nyerereite & Fluorellestadite & Anhydrite

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Nyerereite & Fluorellestadite & Anhydrite

Description Tabs

Description
Locality: 
Kladno Mine, Libušin, Kladno, Central Bohemian Region, Czech Republic
Size Range: 
Thumbnail (1-3cm)
Size: 
2.4 × 1.5 × 1.7 cm
Description

Nyerereite and fluorellestadite and anhydrite on matrix

Mineral Data
What's on the rock

Nyerereite

Formula: 
Na2Ca(CO3)2
Strunz: 
5.AC.10
Hardness: 
0.0
Type Locality: 
Mt Oldoinyo Lengai (Ol Doinyo Lengai), Arusha Region, Tanzania

Fluorellestadite

Formula: 
Ca5(SiO4)1.5(SO4)1.5F
Strunz: 
9.AH.25
Hardness: 
4.5
Type Locality: 
Coal mine No. 44, Kopeisk, Chelyabinsk coal basin, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...

Anhydrite

Formula: 
CaSO4
Strunz: 
7.AD.30
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 3.5
Type Locality: 
Salt mine, Hall valley, Hall, Innsbruck, Inn valley, North Tyrol, Tyrol, Austria