Unknown black / red mineral 10b Black with 5 YR 3 3 Dark Very Large Very Very Quartz SiO2 red edges (main) reddish abundant range all poor angular – Calcite CaCO3 brown sizes from Olivine (Mg,Fe)2SiO4 0.05 1.0 – mm Plagioclase NaAlSi3O8 – Red 2.5 CaAl2Si2O8 4 8 YR (edge) 10c Red 5 YR 4 4 Reddish Very 0.1 - 0.2 Fair Angular Quartz SiO2 brown abundant mm Calcite CaCO3
Unknown black / red mineral 10b Black with red edges 5 YR (main) 2.5 YR (edge) 3 4 3 8 Dark reddish brown Red Very abundant Large range – all sizes from 0.05 – 1.0 mm Very poor Very angular Quartz SiO2 Calcite CaCO3 Olivine (Mg,Fe)2SiO4 Plagioclase NaAlSi3O8 – CaAl2Si2O8 10c Red 5 YR 4 4 Reddish brown Very abundant 0.1 - 0.2 mm Fair Angular Quartz SiO2 Calcite CaCO3
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