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Golden mica takes on the deep color golden mica( the brown or green of the various hue etc. ) and the undertone golden mica( the buff of various hue)  


　A:Chemical Composition: ：
Composition
SiO2
Ag2O3
MgO
K2O
H2O
Content(%)
36-45
1-17
19-27
7-10
<1

　B:The golden mica of undertone is transparent and having the luster of glass；The golden mica of deep color is translucent．Its color is from luster of glass to the semi- metals luster, and section take on the luster of pearl .The slice has the flexibility.
　　Through microscope,the golden mica have achromaticity or snuff color. The pure golden mica is an first-class insulative material in electricity industry．


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