$ 170.00
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Siderite, Quartz, Marcasite, & Pyrite on Sphalerite.
Panasqueira Mines, Portugal.
8.2 x 4.6 x 2.3 cm
A classic example from the mines of Panasqueira in Portugal. A large discus-shaped crystal of siderite measuring over 25mm in length sits atop a matrix of highly reflective sphalerite. Associated with this specimen as well are tiny crystals of glittery pyrite partnered with smaller siderite crystals, coxcomb style marcasite, and a few transparent terminated quartz crystals. A complex mineral specimen to say the least, worthy of anyone's collection.