Here's why:
* Olivine is a silicate mineral with the general formula (Mg,Fe)₂SiO₄. It's essentially a combination of magnesium (Mg), iron (Fe), silicon (Si), and oxygen (O).
* Pyroxene is another silicate mineral with a general formula of (XY)Si₂O₆, where X and Y represent various combinations of calcium (Ca), magnesium (Mg), iron (Fe), sodium (Na), and aluminum (Al). Despite the variations in X and Y, all pyroxenes contain silicon (Si) and oxygen (O) as core components.
Therefore, while both minerals may contain other elements like magnesium, iron, or calcium, silicon and oxygen are the fundamental building blocks of both olivine and pyroxene.
