On Hematite
Color- steel or silver gray to black in some forms and red to brown in earthy forms. Sometimes tarnished with irredescent colors when in a hydrated form
Luster- metalic or dull
Streak- dark red, cherry-red, brownish red
Hardness- 5-6.5
Cleaveage- No true cleavage
Density- 5.3
Specific Gravity- 4.9 - 5.3
Fracture- irregular to subconchoidal uneven, splintery
Tenacity- Brittle
Diaphaniety- Subtranslucent to opaque when sliced very
thin, transparent with red tint
Magnetism- Magnetic after heating
Crystal System- hexagonal bar 3 2/m
Crystal Habit- tubular, twinned, micaceous, botroudal, oolitic
Refractive Index- 2.94-3.22
Specular- mirrored finished
Crystal Form- micaceous, oolitic, massive, mammilary, botryoidal, stalactic, radiating