Olesna, Horovice, Beroun District
Central Bohemia Region,
7.1 x 6 x 4.4 CM (cabinet)
A black ugly, nearly pure, globular Lithiophorite that is a very good example of the specie and the locality. From an old Czech collection, this Manganese Oxide mineral (with Aluminum and Lithium) is never a "pretty" mineral, but it is uncommon and this a rich specimen.