Constituent
- Name
- Amorphous silicate Mg$_{(1-x)}$Fe$_x$SiO$_3$, x=0.4
- Official name
- Mg2SiO4-MgSiO3 series
- Family
- covalent network solid
- Class
- tridimentional covalent network solid
- Compound type
- non-oxide ceramic
- Relevance
- main - major
- Arrangement
- single phase
- Mass fraction
- 1.0
- Mole fraction
- 1.0
- Formula
- Mg$_{(1-x)}$Fe$_x$SiO$_3$, x=0.4$. Mg$_{0.6}$Fe$_0.4$SiO$_3$
- Chemical formula
- (MgO)2(SiO2)x
- Elemental formula
- (Mg)0.6-2 Fe0.4 (Si)1-2 (O)3-6
- Isotope mixture type
- terrestrial abundance
- Class
- molecular solids with apolar molecules (01)
- Type
- with monoatomic apolar molecules (A) (01.01)
- Phase type
- amorphous
- Crystal system
- amorphous
- Crystal class
- N/A
- Crystal class symbol
- N/A
- Crystal spacegroup
- N/A
- Molar mass
- 140.69 - 200.78 $g/mol$
- Refringence type
- biaxial
- Refringence sign
- positive or negative
- Birefringence
- 0.009 - 0.033
- Refraction index $n_{\alpha}$
- 1.636 - 1.668
- Refraction index $n_{\beta}$
- 1.650 - 1.673
- Refraction index $n_{\gamma}$
- 1.659 - 1.679