Mica
Use attributes for filter ! | |
Streak | White, colorless |
---|---|
Cleavage | Almost perfect |
Specific gravity | 2. 8–3. 0 |
Mohs scale hardness | lepidolite |
biotite | |
muscovite | |
Diagnostic features | cleavage |
Luster | pearly, vitreous |
Fracture | flaky |
Date of Reg. | |
Date of Upd. | |
ID | 1156321 |
About Mica
The mica group of sheet silicate minerals includes several closely related materials having nearly perfect basal cleavage. All are monoclinic, with a tendency towards pseudohexagonal crystals, and are similar in chemical composition.