Bornite on quartz
description: <p style="text-align: justify;">LOCALITY: Dzezkazgan Mine, Kakakhstan <br /><br />1 1/2" tall <br /><br />Dzezkazgan is one of the world's most important localities for bornite crystals. Although bornite is not a rare species and is mined with over copper bearing sulphides as a copper ore all over the world, fine quality bornite crystals are rare. Some of the largest bornite crystals ever mined are from Zimbabwe. The Olympic Dam Mine at Roxby Downs, South Australia has also produced at least one high quality bornite with barite specimen. As is true with Roxby Downs barite, bornite crystals at Roxby Downs may not be uncommon but if so, almost all would only be destroyed as a result of normal mining activity which greatly limits human contact with ore and with blasting that shatter and destroy any crystals that may be in pockets.  Firschnitzscharte, Austria also producecd bornite crystals but they are also extremely rare.</p> <p style="text-align: justify;"> </p> <p style="text-align: justify;">This piece was formerly in the Martin Zinn collection.  I bought it from Isaias Casanova during a visit to his home in Tucson in late 2012.</p> <p style="text-align: justify;"> </p> <p style="text-align: justify;">Photo by Matthew Webb of Melbourne, Victoria, Australia</p>
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