Osumilite is a very rare potassium sodium iron magnesium aluminium silicate mineral Osumilite is part of the milarite group of cyclosilicates Contents
Click Here for Larger Osumilite Mg Image in a New Browser Window Images Comments Sapphire blue colored osumilite Mg crystal in dacite Location
Osumilite K Na Fe2 Mg 2 Al Fe3 3 Si Al 12O30 c○2001 Mineral Data Publishing version 1 2 Crystal Data Hexagonal Point Group 6 m 2 m 2 m Crystals
Click Here for Larger Osumilite Fe Image in a New Browser Window Images Osumilite Fe Comments Dark blue crystals of osumilite Fe in matrix
Osumilite Group Difficult to distinguish from Osumilite Mg Compare 39 UM1984 35 SiO AlCaFeKMg 39
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