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Jennite & Ettringite

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SKY698462

Jennite & Ettringite

Classic Locality

Description Tabs

Description
Locality: 
Bellerberg, Ettringen, Eifel Mountains, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1 × 1 cm
Description

White acicular crystals of jennite associated to also white ettringite and an interesting blue unknown mineral (photos 2, 3) that could be the new and extremely rare mineral Vondechenite (IMA 2016-065). However the sample has not been analyzed to confirm this identification.

Mineral Data
What's on the rock

Jennite

Formula: 
Ca9(Si3O9)2(OH)8·8H2O
Strunz: 
9.DG.20
Hardness: 
3.5
Colour: 
White
Type Locality: 
Crestmore quarries, Crestmore, Riverside Co., California, USA

Ettringite

Formula: 
Ca6Al2(SO4)3(OH)12·26H2O
Strunz: 
7.DG.15
Hardness: 
2.0 - 2.5
Type Locality: 
Ettringer Feld, Western lava flow, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany

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