Forsterite
Mg2SiO4

Properties

Parameter unit

Values

Crystal dimensions,
Length
Diameter

mm


100
25

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)