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Ettringite

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CLB189753

Ettringite

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Size Range: 
Museum (18cm plus)
Size: 
19.3 × 17.1 × 4.3 cm
Description

Stunning, museum-sized, large ettringite specimen.
Full of beautiful, transparent crystals. Very showy.
I notice only two, very minor contact marks. Almost perfect for my taste.
The specimen was a little hard to photograph because of the transparency of most of the crystals. It's much better in nature.

Mineral Data
What's on the rock

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

Seller Information

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