Difference between revisions of "Talc"
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Phyllosilicates occur when the silica tetrahedra join together to form flat sheets. These sheets are held together by weak bonding between the free oxygen on the tetrahedra and so cleave easily. Phyllosilicates include both micas (biotite & muscovite), talc, and clay minerals.<ref>[http://www.museums.udel.edu/mineral/mineral_site/education/silicate/phyllo.html]</ref> | Phyllosilicates occur when the silica tetrahedra join together to form flat sheets. These sheets are held together by weak bonding between the free oxygen on the tetrahedra and so cleave easily. Phyllosilicates include both micas (biotite & muscovite), talc, and clay minerals.<ref>[http://www.museums.udel.edu/mineral/mineral_site/education/silicate/phyllo.html]</ref> | ||
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[[Category:Geology]] | [[Category:Geology]] | ||
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Latest revision as of 20:03, July 13, 2016
Talc is number 1 on Mohs hardness scale, is a phyllosilicate.
Phyllosilicates occur when the silica tetrahedra join together to form flat sheets. These sheets are held together by weak bonding between the free oxygen on the tetrahedra and so cleave easily. Phyllosilicates include both micas (biotite & muscovite), talc, and clay minerals.[1]