Post by Franko10 ™ on Sept 20, 2004 11:36:53 GMT -5
Aug 31, 2004
STAR DIAMOND RECOVERIES EXCEED 1,100 CARATS
6.4 CARAT DIAMOND IN 214 CARAT PARCEL
George H. Read, P. Geo., Senior Vice President Exploration, is pleased to announce the fifth set of diamond recoveries from the Star Kimberlite. The diamond recoveries to date total 1,126.45 carats. These results are for six kimberlite batches of a total of some 80 to 100 kimberlite batches that will be processed as part of the bulk sampling program on the Star Diamond Project, the aim of which is to recover a parcel of some 3,000 carats for valuation purposes. A total of 2,147 commercial sized diamonds (greater than 1.18 millimetre square mesh screen), collectively weighing 209.85 carats, has been recovered from the treatment of 1,578 dry tonnes of kimberlite. Nineteen diamonds greater than one carat have been recovered and the four largest stones are: 6.41, 5.16, 4.25 and 3.34 carats, respectively. In addition, 260 diamonds (4.3 carats) were recovered down to 0.85 millimetre square mesh. The colour of over 74 percent of these diamonds has been classified as white, with a further 17 percent classified as off-white.
These six kimberlite batches (of a total of 28 processed) have been mined from the Shaft (Batches 8A, 8B, 8C, and 8E) and the Southeast drive (Batch 20) developed from the 235 metre shaft station. All of these kimberlite batches have been recovered from within the Early Joli Fou equivalent kimberlite. Results to date have shown that higher diamond grades are associated with the Early Joli Fou equivalent kimberlite than with the Late Joli Fou equivalent kimberlite. The relationships between these two kimberlites types are illustrated in cross sections available on the Shore Gold website: www.shoregold.com. To date, some 20,500 tonnes of kimberlite have been extracted from Star as part of the bulk sampling program.
Batches 21, 22, 23, 24, 25, 26 and 27 (all from 235 metre level) have been processed on-site and the concentrates dispatched to the sorting laboratory for final diamond recovery. Results from these batches are pending. All batches processed to date are classified as crater facies volcaniclastic kimberlites.
Kimberlite processed and diamond results for six sample batches are listed in the table below. Grades are expressed in carats per hundred tonnes (cpht).
Batch # Location
(metres below surface) Dry Tonnes Diamonds
Number of Stones Total
(carats)
Grade
(cpht) Largest Stone
(carats)
8A Shaft: 207.6-213.6 275.03 416 28.30 10.29 2.59
8B Shaft: 213.6-219.5 271.86 415 32.91 12.10 6.41
8C Shaft: 219.5-225.4 268.32 380 30.71 11.45 2.41
Shaft: 225.4-231.4 273.43 438 33.14 12.12 2.08
8E Shaft: 231.4-237.0 256.86 406 39.33 15.31 5.16
20 235 m Level: SE drive 232.97 352 49.75 21.35 4.25
Total 1,578.47 2,407 214.13 13.57
The four largest stones are: 6.41 (Batch 8B, White), 5.16 (Batch 8E, Off White), 4.25 (Batch 20, White) and 3.34 (Batch 20, White) carats, respectively. Eight diamonds exceed two carats and 19 diamonds exceed one carat, of which 12 are white, 4 are off white, 2 are brown and one is yellow. A total of 52 diamonds exceed 0.5 carat. Over 74 percent of the total diamond parcel is classified white in colour, with a further 16 percent classified as off-white. The diamond parcel includes 32 pink, 12 yellow and 11 amber stones. Over 98 percent of the carat weight of this parcel occurs in diamonds greater than 1.18 millimetre square mesh.
Senior Vice President Exploration, George Read, states: “This latest 214 carat parcel brings our total diamond recoveries to date in our bulk sampling exercise to 1,126.45 carats from a total of 10,924.87 dry tonnes of kimberlite giving an average grade of 10.31 cpht. However, there are significantly higher grades for the Early Joli Fou equivalent kimberlite which has the following statistics: 931.99 carats from 6,371.14 dry tonnes giving an average grade of 14.63 cpht. Current geological estimates based on drilling and underground mapping indicate that the Early Joli Fou kimberlite accounts for at least 80 percent of the volume of the Star Kimberlite”.
The diamond recovery procedure includes on site processing of kimberlite through the modular dense media separator (DMS), after which DMS concentrates are batch fed through an X-ray Flow-sort. In order to ensure the recovery of low luminosity diamonds, the Flow-sort tailings are processed over a grease table. Flow-sort and grease table concentrates are transported by a secure carrier to SGS Lakefield Research for final diamond recovery. The SGS Lakefield Research process includes drying, screening, magnetic separation, manual sorting and diamond weighing and description. SGS Lakefield Research is accredited to the ISO/IEC 17025 standard by the Standards Council of Canada as a testing laboratory for specific tests.
Senior Vice President Exploration, George Read, Professional Geoscientist in the Provinces of Saskatchewan and British Columbia, is the Qualified Person responsible for the verification and quality assurance of analytical results.
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The Star Diamond Project is designed to recover a parcel of at least 3,000 carats of diamonds to enable an accurate valuation of the stones. Up to 25,000 tonnes of kimberlite will be recovered from the shaft and drifts and processed on site to produce this diamond parcel. Shore is a Canadian based corporation engaged in the acquisition, exploration and development of mineral properties. Shares of the Company trade on the TSX Venture Exchange under the trading symbol “SGF”.
For further information please contact:
Kenneth E. MacNeill, President & C.E.O.; George Sanders, Vice President Corporate Development;
or George H. Read, P. Geo., Vice President Exploration at (306) 664-2202
STAR DIAMOND RECOVERIES EXCEED 1,100 CARATS
6.4 CARAT DIAMOND IN 214 CARAT PARCEL
George H. Read, P. Geo., Senior Vice President Exploration, is pleased to announce the fifth set of diamond recoveries from the Star Kimberlite. The diamond recoveries to date total 1,126.45 carats. These results are for six kimberlite batches of a total of some 80 to 100 kimberlite batches that will be processed as part of the bulk sampling program on the Star Diamond Project, the aim of which is to recover a parcel of some 3,000 carats for valuation purposes. A total of 2,147 commercial sized diamonds (greater than 1.18 millimetre square mesh screen), collectively weighing 209.85 carats, has been recovered from the treatment of 1,578 dry tonnes of kimberlite. Nineteen diamonds greater than one carat have been recovered and the four largest stones are: 6.41, 5.16, 4.25 and 3.34 carats, respectively. In addition, 260 diamonds (4.3 carats) were recovered down to 0.85 millimetre square mesh. The colour of over 74 percent of these diamonds has been classified as white, with a further 17 percent classified as off-white.
These six kimberlite batches (of a total of 28 processed) have been mined from the Shaft (Batches 8A, 8B, 8C, and 8E) and the Southeast drive (Batch 20) developed from the 235 metre shaft station. All of these kimberlite batches have been recovered from within the Early Joli Fou equivalent kimberlite. Results to date have shown that higher diamond grades are associated with the Early Joli Fou equivalent kimberlite than with the Late Joli Fou equivalent kimberlite. The relationships between these two kimberlites types are illustrated in cross sections available on the Shore Gold website: www.shoregold.com. To date, some 20,500 tonnes of kimberlite have been extracted from Star as part of the bulk sampling program.
Batches 21, 22, 23, 24, 25, 26 and 27 (all from 235 metre level) have been processed on-site and the concentrates dispatched to the sorting laboratory for final diamond recovery. Results from these batches are pending. All batches processed to date are classified as crater facies volcaniclastic kimberlites.
Kimberlite processed and diamond results for six sample batches are listed in the table below. Grades are expressed in carats per hundred tonnes (cpht).
Batch # Location
(metres below surface) Dry Tonnes Diamonds
Number of Stones Total
(carats)
Grade
(cpht) Largest Stone
(carats)
8A Shaft: 207.6-213.6 275.03 416 28.30 10.29 2.59
8B Shaft: 213.6-219.5 271.86 415 32.91 12.10 6.41
8C Shaft: 219.5-225.4 268.32 380 30.71 11.45 2.41
Shaft: 225.4-231.4 273.43 438 33.14 12.12 2.08
8E Shaft: 231.4-237.0 256.86 406 39.33 15.31 5.16
20 235 m Level: SE drive 232.97 352 49.75 21.35 4.25
Total 1,578.47 2,407 214.13 13.57
The four largest stones are: 6.41 (Batch 8B, White), 5.16 (Batch 8E, Off White), 4.25 (Batch 20, White) and 3.34 (Batch 20, White) carats, respectively. Eight diamonds exceed two carats and 19 diamonds exceed one carat, of which 12 are white, 4 are off white, 2 are brown and one is yellow. A total of 52 diamonds exceed 0.5 carat. Over 74 percent of the total diamond parcel is classified white in colour, with a further 16 percent classified as off-white. The diamond parcel includes 32 pink, 12 yellow and 11 amber stones. Over 98 percent of the carat weight of this parcel occurs in diamonds greater than 1.18 millimetre square mesh.
Senior Vice President Exploration, George Read, states: “This latest 214 carat parcel brings our total diamond recoveries to date in our bulk sampling exercise to 1,126.45 carats from a total of 10,924.87 dry tonnes of kimberlite giving an average grade of 10.31 cpht. However, there are significantly higher grades for the Early Joli Fou equivalent kimberlite which has the following statistics: 931.99 carats from 6,371.14 dry tonnes giving an average grade of 14.63 cpht. Current geological estimates based on drilling and underground mapping indicate that the Early Joli Fou kimberlite accounts for at least 80 percent of the volume of the Star Kimberlite”.
The diamond recovery procedure includes on site processing of kimberlite through the modular dense media separator (DMS), after which DMS concentrates are batch fed through an X-ray Flow-sort. In order to ensure the recovery of low luminosity diamonds, the Flow-sort tailings are processed over a grease table. Flow-sort and grease table concentrates are transported by a secure carrier to SGS Lakefield Research for final diamond recovery. The SGS Lakefield Research process includes drying, screening, magnetic separation, manual sorting and diamond weighing and description. SGS Lakefield Research is accredited to the ISO/IEC 17025 standard by the Standards Council of Canada as a testing laboratory for specific tests.
Senior Vice President Exploration, George Read, Professional Geoscientist in the Provinces of Saskatchewan and British Columbia, is the Qualified Person responsible for the verification and quality assurance of analytical results.
--------------------------------------------------------------------------------
The Star Diamond Project is designed to recover a parcel of at least 3,000 carats of diamonds to enable an accurate valuation of the stones. Up to 25,000 tonnes of kimberlite will be recovered from the shaft and drifts and processed on site to produce this diamond parcel. Shore is a Canadian based corporation engaged in the acquisition, exploration and development of mineral properties. Shares of the Company trade on the TSX Venture Exchange under the trading symbol “SGF”.
For further information please contact:
Kenneth E. MacNeill, President & C.E.O.; George Sanders, Vice President Corporate Development;
or George H. Read, P. Geo., Vice President Exploration at (306) 664-2202