PHLOGOPITE MICA:

KMg3(Si3AlO10)(OH,F)2
Magnesium substituted mica
Golden or tan color
Stable at high temperatures
Available as powder, flakes and sheets

BIOTITE MICA:

K(Mg,Fe)3(Si3AlO10)(OH,F)2
Iron substitutes mica
Black in color
Least available of all mica, mostly available as coarse grades

MUSCOVITE MICA:

KAl2(Si3AlO10)(OH,F)2
Aluminum substitited mica
Green or Silver in color
Most widely available type

FLUOROPHLOGOPITE:

KAl2(Si3AlO10)F2
Fluorine substituted, aluminum mica
Does not occur in nature, one of the few purely synthetic minerals
Extremely heat stable, 1000C
Brilliant white color
Available in finely ground 10 micron grades up to 3000 micron