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Magnesite Var Pistomesite

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TPX840074

Magnesite Var Pistomesite

Rare Mineral

Description Tabs

Description
Locality: 
Camino de la Salmuera, Sierra de la Murada, Orihuela, Alicante, Valencian Community, Spain
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 2.4 cm
Weight: 
42.00gr
Description

Very interesting group of pseudo-hexagonal crystals of magnesite variety Pistomesite, today Pistomesite is an obsolete name and is only used locally. These magnesite crystals are included in a matrix formed by micro-crystals of magnesite mixed with white gypsum with a granular texture.

Mineral Data
What's on the rock

Magnesite

Formula: 
MgCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White
Type Locality: 
Magnisía Prefecture (Magnesia), Thessalia Department (Thessaly), Greece

Pistomesite

Variety Of: 

Mg-rich Siderite

Formula: 
(Fe,Mg)CO3
Hardness: 
0.0
Formula: 
(Fe,Mg)CO3
Hardness: 
0.0

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