Source: https://xkcd.com/2501/
Alt text: “How could anyone consider themselves a well-rounded adult without a basic understanding of silicate geochemistry? Silicates are everywhere! It’s hard to throw a rock without throwing one!”
Source: https://xkcd.com/2501/
Alt text: “How could anyone consider themselves a well-rounded adult without a basic understanding of silicate geochemistry? Silicates are everywhere! It’s hard to throw a rock without throwing one!”
Olivine: (Mg,Fe)2SiO4.
Feldspar I: KAlSi3O8.
Feldspar Ii: (K,Na)AlSi3O8.
Quarz: SiO2.
Apparently Quartz is the second most abundant mineral in Earth’s continental crust, behind feldspar.
Source : Wikipedia
I can maybe remember Quarz.