| General Information |
|---|
| A variety or type of: | Scapolite |
|---|
| Chemical Formula | Anthony et al, Handbook of mineralogy (2001) |
|---|
| Physical Properties of Marialite |
|---|
| Mohs Hardness | 5.5 to 6Anthony et al, Handbook of mineralogy (2001) |
|---|
| Specific Gravity | 2.50E. Ya. Kievlenko, Geology of gems (2003) More from other references |
|---|
| Tenacity | BrittleAnthony et al, Handbook of mineralogy (2001) |
|---|
| Cleavage Quality | DistinctAnthony et al, Handbook of mineralogy (2001) |
|---|
| Fracture | Uneven,ConchoidalAnthony et al, Handbook of mineralogy (2001) |
|---|
| Optical Properties of Marialite |
|---|
| Refractive Index | 1.540 to 1.550E. Ya. Kievlenko, Geology of gems (2003) |
|---|
| Optical Character | Uniaxial/-Anthony et al, Handbook of mineralogy (2001) |
|---|
| Birefringence | 0.004 to 0.008E. Ya. Kievlenko, Geology of gems (2003) |
|---|
| Colour |
|---|
| Colour (General) | Colorless, white, grey; pink, violet, blue, yellow, brown, orange-brown; colorless in thin section.Anthony et al, Handbook of mineralogy (2001) |
|---|
| Transparency | Transparent,Translucent,OpaqueAnthony et al, Handbook of mineralogy (2001) |
|---|
| Lustre | Vitreous,Resinous,PearlyAnthony et al, Handbook of mineralogy (2001) |
|---|
| Fluorescence & other light emissions |
|---|
| Fluorescence (General) | Commonly fluoresces orange to bright yellow or red under LW or SW or both.Anthony et al, Handbook of mineralogy (2001) |
|---|
| Crystallography of Marialite |
|---|
| Crystal System | TetragonalAnthony et al, Handbook of mineralogy (2001) |
|---|
| Habit | Crystals prismatic, typically with flat pyramidal terminations; granular, massive.Anthony et al, Handbook of mineralogy (2001) |
|---|
| Geological Environment |
|---|
| Where found: | Typically in regionally metamorphosed rocks, especially marbles, calcareous gneisses, granulites, and greenschists. Also in skarns, some pegmatites, pneumatolytically or hydrothermally altered mafic igneous rocks, and ejected volcanic blocks.Anthony et al, Handbook of mineralogy (2001) |
|---|
| Further Information |
|---|
| Mineral information: | Marialite information at mindat.org |
|---|
