Prehnite finger cast after Anhydrite Ferberite Viloco (sometimes called Araca) for

Viloco (sometimes called Araca) for many years has stood as one of the top Cassiterite localities in the world

and this beautiful multicolored gem crystal is no exception

Specimen #VIVBOL81813

No damage and incredibly eye-catching

native Copper is rather rare in my experience

Prehnite finger cast after Anhydrite Ferberite Viloco (sometimes called Araca) forA representative specimen of Prehnite fingers after Anhydrite with a darker green color, and a coating of a secondary clay mineral. Overall, the piece is actually in good condition, with a predominant finger flaring out of the center of the piece. The color in the photos is accentuated by the lighting we used to photograph the piece, but it is a bit more muted in person. The Prospect Park Quarry is arguably the most famous mineral producing basalt