This is an excellent miniature hosting several dark reddish brown, sub-adamantine, prismatic crystals of welshite to 2.5mm! These are huge for the species! The welshite crystals are set in granular dolomite-calcite along with hematite and berzeliite(?) A remarkable and significant specimen from the type locality: Langban, Filipstad, Varmland, Sweden. Ex. Paulo Matioli collection.