| A variety or type of: |
Smoky Quartz, which is a variety of Quartz |
| Chemical Formula |
SiO 2, Gemmological Tables (2004) |
| Physical Properties of Morion |
|
| Mohs Hardness |
7Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
| Specific Gravity |
2.65Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
| Tenacity |
BrittleWalter Schumann, Gemstones of the world (2001) |
| Cleavage Quality |
NoneWalter Schumann, Gemstones of the world (2001) |
| Fracture |
ConchoidalWalter Schumann, Gemstones of the world (2001) |
| Optical Properties of Morion |
|
| Refractive Index |
1.544 to 1.553Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
| Optical Character |
Uniaxial/+Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
| Birefringence |
0.009Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
| Pleochroism |
Definite: brown - reddish-brownWalter Schumann, Gemstones of the world (2001) |
| Dispersion |
0.013Walter Schumann, Gemstones of the world (2001) |
| Colour |
|
| Colour (General) |
Very dark brown, nearly black.Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
| Transparency |
Transparent,Translucent,OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
| Fluorescence & other light emissions |
|
| Fluorescence (General) |
Usually noneWalter Schumann, Gemstones of the world (2001) |
| Crystallography of Morion |
|
| Crystal System |
TrigonalUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
| Habit |
Hexagonal prismsWalter Schumann, Gemstones of the world (2001) |
| Further Information |
|
| Mineral information: |
Morion information at mindat.org |