Cassiterite on Quartz (included with Tourmaline) (ex Rolando Gioia Collection)

Alto do Giz pegmatite, Equador, Borborema mineral province, Rio Grande do Norte, Brazil
Thumbnail, 2.2 x 0.7 x 0.5 cm
Start Time: 01/25/2018 6:45:00 pm (CST)
End Time: 02/01/2018 6:45:00 pm (CST)
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Item Description

Sharp, lustrous, well-formed, cyclic twinned crystals of deep golden-amber colored Cassiterite sit along the side of a sharp, gemmy, prismatic colorless Quartz crystal with minor Tourmaline crystal inclusions from the famous Alto do Giz locality in Brazil. From the collection of Rolando Gioia (a contributor to new definitive book on Brazilian minerals: "Minerais e Pedras Preciosas do Brasil").

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