forsterite
Noun
Meaning
forsterite (plural forsterites)
(mineralogy) A white variety of olivine that is mostly magnesium silicate, Mg2SiO4.
Synonyms
Examples
Compositions of olivine are commonly expressed as molar percentages of forsterite (Fo) and fayalite (Fa) (e.
The ratio of magnesium and iron varies between the two endmembers of the solid solution series: forsterite (Mg-endmember: Mg 2 Si 4 ) and fayalite (Fe-endmember: Fe 2 Si 4 ).