The luster quartz of mica has glass luster. What kind of luster does mica have?
A lustrous quartz having a glassy lusterQuartz is an oxide consisting of silica (SiO2), white or colorless.
The color of mica varies with the change of chemical composition, mainly with the increase of Fe content.
Gypsum is a monoclinic mineral, the main chemical composition is calcium sulfate, usually white, colorless, colorless transparent crystal called gypsum, and sometimes because of impurities and ash, light yellow, light brown and other colors.
