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.
(PXRD shows clinoptilolite; XRF showed major Ca and lesser K, but results are not quantitative, and Na is not seen, so this is not necessarily Ca-dominant.)