Ottemannite
Forestville Coal Dump Fires, Schuylkill County, Pennsylvania, USA
Golden brown metallic microcrystals of the extremely rare tin sulphide mineral ottemannite from one of the few known localities worldwide: Forestville, Schuylkill County, Pennsylvania, United States of America. Outstanding and very rich specimen for size the quality. Ex Vandenbroucke Museum collection specimen, from Waregem, Belgium.
© David Hospital