Name AFROSIDERITE (CHAMOSITE)
Variety AFTER ALMANDINE GARNET
Origin Michigamme (Marquette iron Range) Michigan
Hardness 2-2,5
Composition Mg[B6O7(OH)6 4H2O
Crystaline sys. MONOCLINIC
Size   6,8x4,2x3,4 cm
Weight 114 gr




Description:
Aphrosiderite and Chamosite are the unofficial names for this member of the chlorite group. This sample has undergone a process called pseudomorphosis whereby almandine garnet crystals have been transformed into Aphrosiderite (Chamosite) maintaining the typical dodecahedral structure of garnets.


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AFROSIDERITE (CHAMOSITE)



VARIETY AFTER ALMANDINE GARNET