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News and CommentsThis week I reposted two specimens of amethyst "Cactus Quartz" from South Africa. In the past I have labeled them as from "20 km west of Pretoria, Magaliesberg Mountains, Guateng, South Africa." But last week I received an email from Bruce Cairncross, professor at the University of Johannesburg and co-author of The Minerals of South Africa (1995). In his email he explained that the locality listed for the amethyst on amethyst specimens, commonly sold as Cactus Quartz or Spirit Quartz, had been given in the past as "Magaliesberg" or "15 km southwest of Marble Hall" which were incorrect and misleading. Prof. Cairncross explained the correct locality is: "the quartz is dug from surface outcrops of quartz veins (not pegmatites) on two old farms, Boekenhouthoek AND Mathys Zyn Loop. The neighbouring farm Kwaggafontein is also a source of some specimens. These farms fall within the boundaries of one of the old apartheid-era homelands, KwaNdebele. As this land was expropriated for settlement by the government, no farming took place on the land and over time, informal settlements became established on the farms. These settlements have now grown into fairly large villages." I thank Prof. Cairncross for this important clarification and have updated my currently available specimens and the historical specimens in my Virtual Mineral Museum. I have adopted the format used by Mindat.org for these specimens and list the locality as: Boekenhouthoek area, Mpumalanga Province, South Africa. John H. Betts 3/16/2010 |
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| Click here to see other comments about this site by customers. Also add your feedback... | Customer Comments:"Very beautiful mineral. Fast shipped. I recommend Mr.Betts shop because of quality, price and professional sevice." S. Gassenmann in Germany "Fine mineral specimen at a quite reasonable price. John always has items worth looking at. His photography is both accurate and honest. A real asset to the mineral community." J. Glover |
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See me next at: March 6-7, 2010
New York Gem & Mineral Show
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John H. Betts, owner |
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John Betts - Fine Minerals, New York, NY
212-678-1942
a division of allminerals.com, dealer of Fine Minerals and Natural
Crystal Clusters since 1989.