Georg Sammer

Hübnerite on Quartz

Fluorite, Hübnerite, Quartz

Ferberite, Marcasite, Quartz

Scheelite, Quartz

Scheelite group

Ferberite, Fluorite

Scheelite

Ferberite, Topaz

Scheelite on Quartz

Scheelite, Siderite

reinite (Ferberite pseudomorph after Scheelite), ferritungstite

Scheelite

Scheelite, Molybdenite, Fluorite, löllingite, Arsenopyrite, Helvite, Magnetite

Aschamalmite in Quartz

Bismuthinite

Galenobismutite on Quartz