Forsterite
Mg2SiO4
Properties |
Parameter unit |
Values |
Crystal dimensions, |
mm |
|
Lattice: |
|
Rhombic |
Unit cell parameters 25 |
Å |
a = 4.77 |
|
|
b = 10.28 |
|
|
c = 6.00 |
Refraction indexes |
|
Ng = 1.670 |
|
|
Nm = 1.651 |
|
|
Np = 1.635 |
Density |
g/cm3 |
3.217 |
Mohs hardness |
|
7 |
Axial characteristics |
|
Biaxial |
Melting point |
oC |
1895 |
Density of energy |
J/cm2 |
2 |
Absorption cross section |
cm2 |
1.88 ´ 1018 |
Thermal expansion coefficient |
|
9.5 ´ 10-6 |
Thermal conductivity |
W/cmoK |
0.08 (300oK) |