Goethite

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Goethite
Pribram - Brezove Hory, CZ

Item-No.: 0300136
Price: 30.00 EUR 
Goethite
Pribram, Schacht Vrancice, CZ

Item-No.: 0300286
Price: 15.00 EUR 

Synonyms:  Allcharite, Fullonite, Götheite, Göthite, Hydrohematite, Mesabite, Yanthosiderite
Classification:  Oxides and Hydroxides
Chemical formula:  α-Fe3+O(OH) 
Crystal system:  Orthorhombic
Density (g/cm3):  4,27 - 4,29 measured, 4,18 calculated
Tenacity:  Brittle
Cleavage:  Perfect on {010}, less perfect on {100}
Fracture:  Irregular/Uneven
Hardness (Mohs):  5 - 5,5
Colour:  Brownish black, yellow-brown, reddish brown
Lustre:  Adamantine, Silky, Metallic, Dull
Streak:  Yellowish brown, orange-yellow, ocher-yellow
Type locality:  Hollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Siegerland, Rhineland-Palatinate, Germany
Application:  Iron ore

 


 

 


 

 
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