Dionor, Metalex recover blue-coloured stone at Mori JV

2008-09-18 08:45 ET - News Release

See News Release (C-DOR) Dianor Resources Inc

Mr. John Ryder of Dianor reports

DIANOR INC.: COLOURED DIAMONDS, INCLUDING A BLUE COLOURED STONE CONTINUE TO PREDOMINATE IN FINAL THREE DRILL HOLES FROM MORI JOINT VENTURE PROPERTY IN ONTARIO

Dianor Resources Inc., in conjunction with its joint venture partners Metalex Ventures Ltd. and Mori Diamonds Inc., has received complete results for the remaining three holes of the 16 NQ drill holes drilled on the Mori joint venture properties, located three kilometres northeast and northwest of the Leadbetter diamond property in the Wawa area of Ontario. Theses are the final results of the 2007 drilling campaign conducted on the Mori East and Mori West blocks which returned a preponderance of coloured diamonds (see news in Stockwatch Jan. 14 and June 25, 2008). The NQ drill cores were processed by autogenous (attrition) milling at the CF Minerals Research Limited laboratory in Kelowna, B.C., to recover indicator minerals followed by caustic fusion to recover diamonds.

The colour characteristics of the diamonds recovered from the three drill holes, MN 07-11, MN 07-12 and MN 07-13, are very similar to those recovered from the first 10 holes, with coloured diamonds making up 56 per cent of the stones, while white and colourless diamonds represented 44 per cent of stone population. Of the coloured diamonds 26.5 per cent were brown; 11.6 per cent were grey; 11.0 per cent were yellow (double that of the previous holes); 5.8 per cent were green. Other colours consisted of one purple and one blue diamond. The blue diamond was described as an included, high-intensity blue (scale of four out of four), with dimensions of 296 by 132 by 129 microns (1,000 microns qeuals one millimetre). The colour characteristics of all the diamonds recovered from the 13 holes drilled on the Mori East block consist of 47.5 per cent white stones and 52.5 per cent coloured diamonds with the following order of abundance brown (26.75 per cent), grey (13.88 per cent), yellow (5.72 per cent), green (5.09 per cent) and other colours orange, purple, amber, black, pink, blue (1.09 per cent). Indicator minerals recovered from the diamondiferous drill cores by autogenous (attrition) milling included, G-9 and G-10 garnets, group I eclogitic garnets, picroilmenites, chromites, chrome diopsides and olivines.

Holes MN 07-11, MN 07-12 and MN 07-13 were drilled two kilometres to the west of the other 10 holes in the Mori East block. The main host rocks are Archean age (2.697 billion years old) conglomerates that are visually similar to those conglomerates drilled to the east; however they are situated near a major east-west-striking shear zone, that may have affected diamond preservation in that area. The largest diamonds were recovered on 0.425-millimetre aperture square mesh screens.

The results continue to demonstrate the persistence of the diamondiferous conglomerate in the area and more specifically indicate the diamondiferous nature of the conglomerate on the Mori East block of claims. The three-kilometre-long, diamond-bearing conglomerate band on the Mori East block is situated on the east side of the Mildred Lake fault and is the faulted eastern continuation of the main diamond-bearing Leadbetter conglomerate located approximately 3.5 kilometres to the south. Exposures of the conglomerate attain thicknesses on surface of up to 180 metres and dip steeply to the north-northwest. Drilling results indicate that the true thickness of the diamond-bearing conglomerate ranges from 87.6 to 121 metres.

Management is very pleased with the overall results of the 2007 drilling program especially the abundance, variety and size of coloured stones recovered which included rare orange, purple and blue diamonds. A number of coloured stones are of commercial size (greater than 0.85 mm) and diamond counts continue to average a promising one diamond per kilogram in a continuous diamondiferous conglomerate. The presence of rare coloured diamonds is believed to be the first such occurrence in Ontario and in conjunction with the company's recent discoveries of rare coloured diamonds in similar geological settings in Quebec marks a new geological target for coloured diamonds in the Superior province.

Carl Verley, PGeo, is the qualified person responsible for the technical contents of this press release.