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!
Schooner (1955) says it: "was discovered at Collins Hill by the author, about ten years ago. Little was seen, and only one example was collected. The mineral consisted of bright yellow coatings on sphalerite, from the cut above the Strickland Quarry". There is so much else this could be....
Habit:
encrustation
Colour:
yellow
Quality for species:
Poor for species, only of interest for locality collectors. (#)
