Tags: Chemical Substance, Mineral.
Thulite (sometimes called rosaline) is an translucent crystalline or massive pink manganese-bearing variety of the mineral zoisite. Manganese substitutes for calcium in the structure with up to two percent Mn2+. Thulite is often mottled with white calcite and occurs as veins and fracture fillings transecting many types of rock. In mineralogical literature thulite may sometimes refer to any pink zoisite.
