|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | romanechite | 5.00 | none | Uneven | opaque | none | 3.70 | submetallic | black | brown | microcrystalline | hydroxides | Often black dentritic or fern shaped masses within rock fractures. |
|