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Ettringite

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RAF199023

Ettringite

Gem Crystal

Description Tabs

Description
Locality: 
Wessels Mine, Hotazel, Kalahari, Northern Cape Province, South Africa
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 0.8 × 0.7 cm
Largest Crystal: 
3.20cm
Description

This is an attractive specimen of goldish yellow translucent ettringite crystal with small micro hematite crystals at base. Came out from Wessels Mine. A real gem of a specimen! 1.8 gr.

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