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Ettringite

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MGR1166689

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Description
Locality: 
NChwaning Mines, Kuruman, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 2.7 × 1.7 cm
Description

Rare Ettringite - one on matrix plus a single crystal, which is 24 mm tall. The faces of both crystals are very glossy, both are end-pointed and undamaged.

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

Current price

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10
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Start 14 Feb 18:00
End
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Shipping Information

Postage Area Price
Austria 7 (up to 1kg)
7
EU 18 (up to 1kg)
18
Rest of Europe 20 (up to 1kg)
20
North America and Japan 27 (up to 1kg)
27
Rest of World 32 (up to 1kg)
32

Bid History

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