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Silicate minerals

silicate minerals

QuestionAnswer
Olivine (MG,Fe)2 SiO4 no cleavage independent tetrahedron
Pyroxene Group (augite) (Mg,Fe)2SiO3 cleavage two plane at right angles structure single chains
amphilbole group (hornblende) Ca2(Fe,Mg)5Si8O22(OH)2 cleavage two planes and 60 and 120 structure double chain
Micas Biotite KAl2 (Alsi3O10)(OH)3 cleavage one plane structure sheets
Mica Muscovite KAl2(alsi3O10)(OH)2 cleavage one plane structure sheets
Potassium feldspar (orthoclase) KAlSi3O8 cleavage two planes at 90 degrees structure three-dimensional networks
Plagioclase feldspar (Ca,Na)AlSi3O8 two planes at 90 three dimensional network
quartz SiO2 Three-dimensional networks
Created by: 35904657
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