Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand