B&W PPL image of harkerite (Hrk) and clintonite (Cln) aggregate with inclusions of spinel (Spl) in Crestmore marble #2A Mgt: magnetite, Anh: anhydrite, Cal: calcite.
Location:
Low-pressure contact aureole in the Crestmore quarry, Riverside County, California, USA. (CanMin, v37:277).