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Silicate Minerals
Tectosilicates
Phyllosilicates
Inosilicates
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Sorosilicates
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Epidote & Quartz
Chemical Formula :
{Ca
2
}{Al
2
Fe
3+
}(SiO
4
)(Si
2
O
7
)O(OH)
Crystal System :
Monoclinic
Mohs Scale :
6-7Â
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