Sample #
16
Mineral Name
MAGNETITE
Chemical Composition
Fe3O4
Luster
Metallic to dull/earthy
Color(s)
Dark grey to black
Streak Color
Dark brown, brownish-yellow
Specifc Gravity
5.2
Habit
Octahedra, massive, granular
Cleavage/Fracture
None/Subconchoidal to uneven
Hardness
6
Diagnostic Feature(s) Strongly magnetic, color, specific gravity