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Native Elements: Au, Ag, Pt, Cu, S, C

Native Elements: Au, Ag, Pt, Cu, S, C. EOSC 220 – Introduction to Mineralogy September 14, 2004. 1litre water = 1kilogram 1litre gold = 18.9 kilograms!. 1 troy ounce = 31.1 grams 1 ounce = 28.6 grams Currently US$405.25 per ounce. Karat vs. Carat. “Karat” is a measure of purity

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Native Elements: Au, Ag, Pt, Cu, S, C

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  1. NativeElements:Au, Ag, Pt, Cu, S, C EOSC 220 – Introduction to Mineralogy September 14, 2004

  2. 1litre water = 1kilogram • 1litre gold = 18.9 kilograms!

  3. 1 troy ounce = 31.1 grams • 1 ounce = 28.6 grams • Currently US$405.25 per ounce

  4. Karat vs. Carat “Karat” is a measure of purity • 24kt = pure gold • 12kt = 50% gold • 18kt = 75% gold • 12kt = 50% gold “Carat” is a measure of weight in gemstones • Derived from the carob seed • 1 seed = 0.2 grams = 1 carat

  5. .925 Sterling Silver

  6. Highland Valley Copper

  7. X-10 graphite reactor at Oak Ridge

  8. Kimberlite

  9. Exploration

  10. 1991 discovered at Point Lake near Lac de Gras in the Northwest Territories. • Two diamond mines have begun production: • EKATI and Diavik , both in the Northwest Territories. • Two diamond prospects to be producing soon: • Jericho project, just north of EKATI in Nunavut, 2005. • Snap Lake project, also in the Northwest Territories, 2006. • $1.7 billion industry . • Canadian diamond production in 2002 was almost 5 million carats and in 2003 was 11.2 million carats. • Third after Botswana and Russia for diamond production by value. • http://www.nrcan-rncan.gc.ca/mms/diam/Kimberlite-EN/Kimberlite.swf

  11. Canadian Diamonds

  12. Questions?

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