Fluorcalcioroméite
Starlera Mine, Starlera Valley, Ferrera, Viamala Region, Grisons, Switzerland
Massive, heavy specimen composed of almost pure Fluorcalcioroméite with a lot of small octahedral crystals in cavities. More bright orange-yellow crystals (at the top) contains very minor admixture of Ti (<1 mas.%). Associating minerals are close not identified beige carbonate and black manganese oxides. Analytical data are available on daughter ...
© Pavel M. Kartashov collection & photo