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Asbolane: (Co,Ni)1-y(Mn++++O2)2-x(OH)2-2y+2x·n(H2O)
Comments: Brownish red dull grains of asbolane to 2mm in matrix. Location: Lipovka, Middla Urals, Russia. Scale: Picture size 1 cm. © Tom Loomis / Dakota Matrix