Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
Graphite occurs as a component of carbonaceous matter which forms thin seams separating magnesite strata. In some areas, it forms lustrous layers of pure graphite.