|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | samarskite | 5.00 | poor | conchoidal | Translucent | none | 5.65 | glassy | black | brown | prismatic | oxides | Striated faces. Radioactive rare earth mineral. |
|