Tin Oxide Sphalerite type cubic
SnO2 (Sphalerite)
Chemical name
Tin Oxide Sphalerite type cubic |
Mineral name
Cassiterite |
Chemical formula
SnO2 (Sphalerite) |
Melting point [°C]
1800-1900 |
Crystal system
tetragonal |
Space Group
P42/mnm |
Unit cell
a [Å]:4.73 b [Å]:4.73 c [Å]:3.18 |
Molecular weight [g/mol]
150.69 |
Formula units
Z=2 |
Frequent crystal surfaces
(001), (100), (110), (111) |
Twinning
natural defects |
Mohs hardness
7 |
Density [g/cm3]
6.9 |
Color
dark yellow brownish |
Refractive Index
nω = 1.990–2.010 nε = 2.093–2.100 |
Crystal growth method
Natural |
Maximum size
up to 10 x 10 mm |