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Jacobsite - Wessels Mine, Hotazel, Kalahari manganese field, Northern Cape, South Africa (#:MINS8560)

Blackish, very lustrous Jacobsite in matrix up to 1 mm. Rare sample with sharp, well defined crystals on matrix with garnets in association.

Formula :
(Mn2+,Fe2+,Mg)(Fe3+,Mn3+)2O4

System: cubic Hardness:5-6 Rarity:not common
Strunz id:IV/B.2-30 - OXIDES and HYDROXIDES
Name origin: Named in 1869 by Augustin Alexis Damour for the type locality of Jakobsberg, Sweden.

Specimen weight:6 gr.
Crystal size:up to 1 mm
Overall size: 26mm x 17 mm x 12 mm

Our Price: 20,00






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Jacobsite - Wessels Mine, Hotazel, Kalahari manganese field, Northern Cape, South Africa


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