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Jouravskite

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SKY720735

Jouravskite

Classic Locality

Description Tabs

Description
Locality: 
NChwaning III Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.2 × 1 cm
Description

Nice specimen of the very rare jouravskite, a mineral only known from two localities wolrdwide, in a matrix of white xonotlite.

The mineral is a Ca-Mn sulphate carbonate.

Jouravskite is one of the rarest members of the ettringite group, found in the Kalahari Manganese fields.

A really showy example of this rarity!

Mineral Data
What's on the rock

Jouravskite

Formula: 
Ca3Mn4+(SO4}(CO3)(OH)6·12H2O
Strunz: 
7.DG.15
Hardness: 
2.5
Type Locality: 
Tachgagalt Mine, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco

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