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Johannesburg Centre,
Astronomical Society of Southern Africa
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Visit to Vergenoeg Mine Vergenoeg, situated in the Cullinan district, some distance from Pretoria, is the world's fourth largest Fluorspar mine. Fluorspar is a calcium fluoride [CaF2], and industrial products include fluoridation of water, hydrofluoric acid [HF], and in uranium enrichment. The geologist, Mnr Fourie, has kindly allowed us to visit there on Saturday 22 December 2001 from about 10:00. The visit will include a tour of the open cast facility, an opportunity to collect specimens, a tour of the plant, and a possible limited overnight dark sky opportunity. If you are interested in joining in, please contact the writer: Trevor Gould |
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