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Goethite Psm Magnesite

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SLN686606

Goethite Psm Magnesite

Description Tabs

Description
Locality: 
Ojos Negros Iron Mines, Ojos Negros, Teruel,, Aragón, Spain
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
7.6 × 17.8 × 14.1 cm
Weight: 
685.00gr
Description

New particular specimen arrived from the aragonese locality of Ojos Negros consisting in a pseudomorphic substitutions of goethite (limonite) after siderite or magnesite. This specimen has big and well defined crystals in a brown color in graduated shading. As you can see by photos crystals are present in different side of the specimen

Mineral Data
What's on the rock

Goethite

Formula: 
α-Fe3+O(OH)
Strunz: 
4.00.
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 5.5
Type Locality: 
Hollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Siegerland, Rhineland-Palatinate, Germany

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

Seller Information

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