Material |
Mica (specifically Black Mica) |
Color |
Black, dark brown, or deep gray |
Shape |
Thin, flexible sheets or flakes |
Size |
Varies from fine grains to larger sheets |
Weight |
Generally light due to its thin, flexible nature |
Density |
2.7-3.0 g/cm³ |
Transparency |
Transparent to translucent |
Texture |
Smooth, flexible, and slippery |
Hardness |
2-3 on the Mohs scale |
Cleavage |
Perfect cleavage, splits easily into thin layers |
Chemical Composition |
Primarily silicate minerals (e.g., potassium, aluminum, magnesium) |
Electrical Conductivity |
Insulator, but may show some conductivity when heated |