What is "moorhouseite"

n. (context mineralogy English) A monoclinic-prismatic pink mineral containing cobalt, hydrogen, manganese, nickel, oxygen, and sulfur.

Moorhouseite is a rare mineral with the formula CoSO•6HO, a naturally occurring cobalt(II) sulfate hexahydrate. It is the lower-hydrate-equivalent of bieberite (heptahydrate) and aplowite (hexahydrate). It is also hydrated equivalent of cobaltkieserite. It occurs together with moorhouseite within efflorescences found in the Magnet Cove Barium Corporation mine in Walton, Nova Scotia, Canada.