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diopside |
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diopsideCommon silicate mineral in the pyroxene family. Diopside is a calcium and magnesium silicate (CaMgSi2O6) that occurs in metamorphosed siliceous limestones and dolomites, in skarns, and in igneous rocks. It is also found in small amounts in many chondritic meteorites. Clear specimens of good green colour are sometimes cut as gems. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Based on stream sediment sampling surveys, OGS geologists say the area contains abnormal amounts of important mineral grains such as G-10 garnets, chromites, magnesium ilmenites and chrome diopsides. The area was identified on the basis of historic sampling, by the Saskatchewan Geological Survey and the Geological Survey of Canada in the early 1990's that recovered high counts of kimberlite indicator minerals including significant concentrations of pyrope and eclogitic garnets, chrome diopside and oxides covering a large aerial extent of unglaciated terrain. Kimberlite is a host rock to diamonds, but not a source rock: Kimberlite indicator minerals consist of pyrope and eclogitic garnets, magnesian ilmenite, chromite, chorine diopside, forsteritic olivine and diamond and the presence of these minerals is used to determine the proximity of diamond-bearing kimberlites. |
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