Question

Olivine mineral chemical formula is:

• A. \( (\text{Mg}, \text{Fe})_2\text{SiO}_4 \)
• B. \( (\text{Mg}, \text{Fe})_3\text{SiO}_4 \)
• C. \( (\text{Mg}, \text{Fe})_4\text{SiO}_4 \)
• D. \( (\text{Mg}, \text{Fe})_5\text{SiO}_4 \)

Hint:

Olivine = orthosilicate group = \( (\text{Mg}, \text{Fe})_2\text{SiO}_4 \)

Answer 1

The Correct Option is A

Olivine is a silicate mineral with the general formula: \[ (\text{Mg}, \text{Fe})_2\text{SiO}_4 \] This represents a solid solution series between forsterite (Mg-end) and fayalite (Fe-end).