|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | thorianite | 6.00 | poor | conchoidal | opaque | none | 9.70 | submetallic | black | green | faceted | oxides | Strongly radioactive |
|