Phlogopite is divided into dark phlogopite ( brown or green in various shades ) and light phlogopite ( pale yellow in various shades ). Light-colored phlogopite is transparent and has glass luster; dark-colored phlogopite is translucent. Glass luster to semi-metal luster, the cleavage surface is pearl luster. The sheet is elastic. Hardness 2─3. The proportion is 2.70--2.85. Not conductive. Colorless or brownish yellow under microscope transmission light. The main performance of phlogopite is slightly inferior to muscovite, but it has high heat resistance and is a good heat-resistant insulating material.
chemical composition:
|
Ingredients |
SiO 2 |
Ag 2 O 3 |
MgO |
K 2 O |
H 2 O |
|
Content (%) |
36-45 |
1-17 |
19-27 |
7-10 |
<1 |
Product main specifications: 10 mesh, 20 mesh, 40 mesh, 60 mesh, 100 mesh, 200 mesh, 325 mesh, etc.
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