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Comments: Pseudo-cubic crystal of pyrochroite on matrix.
Location: Franklin, Sussex County, New Jersey, USA.
Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals
Pyrochroite: Mn(OH)2 Shigaite: Mn++7Al4(SO4)2(OH)22·8(H2O)
Comments: Bronzy yellow crystals of shigaite set in a crystalline matrix of reddish black pychroite.
Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa.
Scale: 2.8 x 2.3 cm.
© John Veevaert