Mineral Name
Chemical Formula
C
Preview
![image preview](https://ecommons.udayton.edu/geo_mineral/1007/preview.jpg)
Color
grayish black
Class
Article
Luster
metallic, greasy
Diaphaneity
opaque
Hardness
1-2
Cleavage
1 direction: {0001} perfect
Fracture
flaky
Density
2.09-2.23
Crystal Shape
usually in foliated to compacted masses
Crystal System
Hexagonal
COinS