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Large Bismuth Crystal Piece

Bismuth is one of the main ingredients of Pepto-Bismol, a fact that is not widely known! These crystals' formation is what makes them unique, as well as something many collectors will find fascinating

Wulfenite ~ Kuruktag Mountains Xinjiang Uygur Region China

Cromita. #Minerals #ÒxidsiHIdròxids

Espat d'islandia. 2

malaquita-azurita

hyalite opal - Google Search