Dianor Resources Inc.
TSX VENTURE : DOR

Dianor Resources Inc.

June 12, 2007 08:00 ET

RETRANSMISSION/Dianor: Results Confirm Three Conglomerate Units are Diamondiferous With the Recovery of 2,874 Diamonds

VAL-D'OR, QUEBEC--(Marketwire - June 12, 2007) - This news release is not for distribution to United States newswire services or for dissemination in the United States.

Dianor Resources Inc. (TSX VENTURE:DOR) is pleased to inform its shareholders that it has received a preliminary report on the DMS ("Dense Media Separation") processing and diamond recoveries from Kennecott Canada for the four "60 tonne" surface samples of diamond bearing conglomerate excavated from different conglomerate units on the Leadbetter Diamond Property, located 12 kilometres northeast of the town of Wawa, Ontario (press releases January 18th, March 21st and April 18th, 2007). A 1.52 carat yellow and a 1.01 carat brown diamond were recovered from the samples and were reported on previously (press releases April 18th and April 23rd 2007).

The samples were processed at Kennecott Canada Exploration Inc.'s DMS facility at Thunder Bay, Ontario where the rock samples were washed, crushed utilizing a HPRC (high pressure rolls crusher), sized (material ranging from minus 12mm to plus 1mm) and processed through the DMS plant to produce heavy mineral concentrates. Diamonds were recovered from the concentrates and classified by sieve size. All aspects of the operation were independently checked by Hatch's on site representative on behalf of Dianor (press release January 18th 2007). Processing of the 102.7 tonnes of minus 4 mm float rejects from the four samples has yet to be undertaken. Processing is expected to commence in July and will provide diamond liberation information. Studies of the gold content of the Leadbetter conglomerate and indicator minerals, particularly gem quality rubies and sapphires, are being undertaken.

A total of 296.7 tonnes of material from four surface samples, three from the North Sector plus one from the Central Sector and representing three different lithological conglomerate units which comprise the diamond bearing Leadbetter conglomerate was treated at the facility. Each sample was processed in 15 to 20 tonne increments.

Preliminary results for the four "60 tonne" surface outcrop samples are tabulated below and indicate that each of the three conglomerate units appear to have a different diamond content.



Summary of Preliminary Results from the Leadbetter Conglomerate Samples
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Sample/ Property Conglomerate Dry Weight Total Carats
Pit No. Sector Unit Tonne Diamonds Total
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136 North S1C 70.736 795 24.858
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401 North S1C 78.151 1096 31.141
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SUB-TOTAL (i)S1C 148.887 1,891 55.999
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101 North (ii)SICV 79.855 737 19.481
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184 Central (iii)S1CO 68.006 246 7.181
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TOTAL 296.748 2,874 82.661
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Only diamonds greater than 0.85mm


(i) The S1C unit is a poorly sorted polymictic conglomerate unit without stratification and is considered the classic type "Leadbetter Conglomerate" sandwiched between the older S1CV and the younger S1CO unit.

(ii)The S1CV unit is also a polymictic conglomerate that displays primary sedimentary features like graded bedding and is locally intercalated with mafic volcanics. The clast component of the S1CV and S1C are similar.

(iii)The younger S1CO unit contains a higher percentage of rhyolitic boulders and cobbles that are rounded and angular in nature which distinguishes it from the older S1CV and S1C unit

Two of the samples, #136 and #401, were excavated from the main conglomerate horizon (S1C) for which a preliminary tonnage of 366,000,000 has been estimated (press release April 23rd 2007). Sample #136 yielded 795 diamonds, having a total weight of 24.858 carats, from 70.7 tonnes of rock. The largest diamonds recovered from this sample were a 1.522 carat pale yellow macle, two 0.461, a 0.392 and a 0.197 carat diamond. Sample 401 returned 1,096 diamonds, weighing 31.141 carats, from 78.2 tonnes. (i)

Sample #101 from the North Sector was excavated in the S1CV unit which underlies the thicker S1C conglomerate unit. Preliminary tonnage of 99,000,000 tonnes has been estimated for S1CV unit. 737 diamonds, weighing 19.481 carats were recovered from 79.9 tonnes. The largest diamonds weighed: 1.011, 0.311, 0.217, 0.184 and 0.181 carats.(i)

Sample #184 from the Central Sector and excavated in the S1CO unit or the upper subdivision of the Leadbetter Conglomerate, for which a preliminary tonnage of 101,000,000 tonnes has been estimated. 246 diamonds weighing 7.181 carats were recovered from 68 tonnes of material. The largest diamond recovered was a 0.797 carat stone, followed by 2 stones weighing a combined 0.538 carats and a 0.126 carat diamond.(i)

(i) Diamond weights by sieve size are only available. Individual diamond weights and descriptions have yet to be completed. The preliminary tonnage estimate is not a mineral resource as there is insufficient data including diamond assays from the drilling (microdiamond sampling of drill cores) available at this time to calculate a mineral resource for the Leadbetter Conglomerate.

Management is very encouraged by these results and is of the opinion that enhanced diamond recoveries were achieved during the processing of the "60 tonne" samples with the utilization of high pressure roll crushers and the attention given to process control by both the service provider - Kennecott Canada Exploration Inc. - and the project supervisor, Michael Rylatt of Hatch. The results were successful in demonstrating that larger stones occur in the Leadbetter conglomerate. There is still considerable variability in diamond yields between the different units as well as within individual units, namely the S1C unit. Microdiamond results from drill cores suggest that there are portions of the Leadbetter conglomerate, which should provide high diamond yields. Further sampling programmes will test these zones as well as continue to accumulate parcels of diamonds from a variety of segments of the Leadbetter conglomerate that can be used to appraise the feasibility of the project.

Results of previous surface sampling ("6 tonne") were reviewed and a preliminary assignment of individual samples to the various conglomerate units (S1C; S1CV; S1CO) was made based on the ongoing detailed mapping of the Leadbetter Conglomerate. Changes to this assignment may be made upon completion of the detailed mapping. Results from the "6 tonne" sampling based on lithology are tabulated below.



Results from previous surface sampling the Leadbetter Conglomerate
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Number Property Conglomerate Dry Weight Total Carats
Of Pits/ Sector Unit Tonne Diamonds Total
Samples
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36 North S1C 184.442 2,419 54.310
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11 North S1CV 54.829 584 13.285
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19 Central S1CO 101.459 819 20.581
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TOTAL 340.730 3,822 88.176
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Only diamonds greater than 0.85mm reported


In general, similar variations in the diamond content of the different conglomerate units are apparent from both sets of sampling ("6 tonne" and "60 tonne" samples). The S1C unit appears to have higher diamond content than the S1CO unit with the diamond content of the S1CV unit between the two. In addition larger sized diamonds are present in all three units.

Dianor is an innovative exploration company focused on advancing diamond exploration properties in Canada. The Leadbetter Diamond Project is its most advanced project and is located 12 kilometres north east of Wawa in Northern Ontario. It is a unique diamond deposit that in addition to diamonds it contains gold, sapphires and rubies (press release January 18th 2007). It is also the oldest in the world being dated at 2.697 billion years old (press release April 4th 2007).

Mr. Carl Verley, P.Geo is the Qualified Person responsible for the technical contents of this press release.

This news release does not constitute an offer to sell or a solicitation of an offer to buy any of the securities in the United States. The securities have not been and will not be registered under the United States Securities Act of 1933, as amended (the "U.S. Securities Act"), or any state securities laws and may not be offered or sold within the United States or to United States Persons unless registered under the U.S. Securities Act and applicable state securities laws or an exemption from such registration is available.

The TSX Venture Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this press release.

Contact Information

  • Dianor Resources Inc.
    Mr. John Ryder, P.Geo.
    President
    819-825-7090
    819-825-7545 (FAX)
    info@dianor.com
    or
    Dianor Resources Inc.
    Mr. Daniel Duval
    Chairman of the Board
    819-825-7090
    819-825-7545 (FAX)
    info@dianor.com
    or
    S.D.N.L. Financial Communication
    Mr. Sylvain Laberge
    Investor Relations
    514-702-9841
    slaberge@sdnlfinancial.com