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Seitapera Mineral Chemistry
Seitapera Mineral Chemistry.
About this update from Karelian Diamond Resources Plc
[{"type":"text","content":"\n \n Karelian Diamond Resources plc \n\n (\"Karelian\" or the \"Company\") \n\n 15 April 2008\n\n DIAMOND POTENTIAL OF SEITAPERÄ KIMBERLITE CONFIRMED BY MINERAL CHEMISTRY AND \n MICRO-DIAMOND ANALYSES \n\n * Micro-Diamond Recovered From Kimberlite Feeder Dyke\n \n * Mantle Material Shown To Have Favourable Ratio Of Garnets\n \nKarelian Diamond Resources plc (AIM: KDR) is pleased to announce favourable\nresults of its mineral chemistry and micro-diamond analyses on the Seitaperä\ndiamondiferous kimberlite in eastern Finland and the recovery of a\nmicro-diamond from a feeder dyke to the main pipe.\n\nMicro-probe analyses of mantle-derived nodules (inclusions) from the Seitaperä\nkimberlite have demonstrated that these are mantle-sourced garnet peridotites\nbearing abundant G9 garnets. The significance of the nodules is that diamonds\nare formed within mantle material.\n\nThese analyses, performed under contract by the Geological Survey of Finland\n(\"GTK\"), have been integrated into an extensive data-base of mineral chemistry\nanalyses from the Seitaperä kimberlite. The garnet content of the kimberlite is\nnow shown to comprise ~ 14per cent. harzburgitic (G10); ~73 per cent.\nlherzolitic (G9); ~13 per cent. megacrystic and ~ 0.5 per cent. eclogitic (n=\n240). This ratio is in the general range of many economically diamondiferous\nkimberlites world-wide.\n\nIn addition to the positive mineral chemistry, a micro-diamond has been\nrecovered from one of two kimberlite dykes presumed to feed into the Seitaperä\nkimberlite. The sample material was selected on the basis of surface exposure\nand, as such, the positive micro-diamond result not only further confirms the\ndiamondiferous nature of the Seitaperä pipe but also the survivability of\ndiamonds in the kimberlite magma of the pipe.\n\nBased on these results, the Company has decided to undertake comprehensive\ntesting of the known mantle-nodule bearing zone previously identified within\nthe Seitaperä kimberlite.\n\nCommenting today, Professor Richard Conroy, Chairman of Karelian Diamond\nResources, said: \"We are particularly pleased by the recovery of a\nmicro-diamond from the feeder dyke, which bodes well for the main pipe itself,\nand that the mineral chemistry results from the mantle material are within the\ngeneral range of many economically diamondiferous kimberlites w...