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Post by Franko10 ™ on Apr 20, 2005 8:16:46 GMT -5
Kensington Resources Ltd.: Diamond Results for Drillhole 04-140-051 from Fort a la Corne Kimberlite 140/141
09:01 EDT Wednesday, April 20, 2005
VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - April 20, 2005) - Kensington Resources Ltd. (the "Company") (TSX VENTURE:KRT) announces the recovery of 68 macrodiamonds weighing 18.56 carats, including the previously announced 10.53 carat stone, from large diameter drillhole 04-140-051 targeted on Fort a la Corne Kimberlite 140/141 drilled during the 2004 Evaluation Program.
The total estimated mass of kimberlite excavated from 04-140-051 was 147.93 tonnes of which 118.73 tonnes of material greater than 1.5 mm in size were retained for recovery of commercial-sized diamonds. Minibulk samples were shipped to the De Beers' dense media separation plant located in Grande Prairie, Alberta for the first stage of diamond recovery procedures, followed by final diamond recovery in an ultra-high security facility in Johannesburg, RSA. A summary of sampling information and diamond recovery results for this drillhole is shown in Table 1.
Table 1: Summary of Macrodiamond Recovery for Minibulk Samples from Drillhole 04-140-051
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Theoretical
Sample Excavated
Kimberlite Interval Mass Total
Drillhole Unit (metres) (tonnes)(1) Carats
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04-140-051 140 Breccia Beds 101.93 147.93 18.56
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Est. # of Diamonds
Drillhole Drillhole greater than
Grade Total stones/ 0.25 cts.
Drillhole (cpht) Stones tonne (largest stone)(2)
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04-140-051 12.545 68 0.46 7 stones (1.32 cts.
and 10.53 cts)
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(1) The calculation of theoretical mass was based on the volume of a
vertical cylinder and a kimberlite rock density of 2.21.
(2) Diamond weights were provided in terms of total carats per sieve
class. The reader is cautioned that for interval samples
(12 metres) with multiple stone recoveries, the number of stones
greater than 0.25 carats was estimated by dividing carat weight
by the number of stones in the +9 sieve class for selected
samples and all of the +11 and larger sieve classes.
Large stone recoveries in drillhole 04-140-051 included an estimated 7 diamonds greater than 0.25 carat in size with a combined weight of 13.665 carats. These larger diamonds account for 73.6% of the total carat weight, but represent only 10.3% of the total stones in the parcel. Four of the seven larger diamonds were recovered from samples taken from the upper 30 metres of the kimberlite body, including a 10.53 carat stone that was reported in the Kensington Resources news release of March 7, 2005. The size distribution of the recovered diamonds from this drillhole is shown in Table 2.
The 2004 Evaluation Program (budgeted at CDN $7.6 million) included ten large diameter minibulk drillholes positioned on high-grade zones in kimberlites 140/141 and 122. Two of the minibulk drillholes in kimberlite body 122 were terminated above kimberlite due to drilling difficulties. Samples and results from drillhole 04-140-051 are the fifth of five batches that were recovered from Kimberlite 140/141 breccia beds during the 2004 Evaluation Program. Minibulk samples collected in this program will provide additional diamonds that will be used to increase the level of confidence in grade forecasts, and for revenue modeling by De Beers' experts. A recently revised map of kimberlite body 140/141 showing location of the 2004 drillholes is posted on the Kensington Resources Ltd. website at www.kensington-resources.com.
Table 2: Summary of Macrodiamond Recovery from LDDH 04-140-051 by Sieve Size Category
09:01 EDT Wednesday, April 20, 2005
VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - April 20, 2005) - Kensington Resources Ltd. (the "Company") (TSX VENTURE:KRT) announces the recovery of 68 macrodiamonds weighing 18.56 carats, including the previously announced 10.53 carat stone, from large diameter drillhole 04-140-051 targeted on Fort a la Corne Kimberlite 140/141 drilled during the 2004 Evaluation Program.
The total estimated mass of kimberlite excavated from 04-140-051 was 147.93 tonnes of which 118.73 tonnes of material greater than 1.5 mm in size were retained for recovery of commercial-sized diamonds. Minibulk samples were shipped to the De Beers' dense media separation plant located in Grande Prairie, Alberta for the first stage of diamond recovery procedures, followed by final diamond recovery in an ultra-high security facility in Johannesburg, RSA. A summary of sampling information and diamond recovery results for this drillhole is shown in Table 1.
Table 1: Summary of Macrodiamond Recovery for Minibulk Samples from Drillhole 04-140-051
---------------------------------------------------------------------
Theoretical
Sample Excavated
Kimberlite Interval Mass Total
Drillhole Unit (metres) (tonnes)(1) Carats
---------------------------------------------------------------------
04-140-051 140 Breccia Beds 101.93 147.93 18.56
---------------------------------------------------------------------
---------------------------------------------------------------------
Est. # of Diamonds
Drillhole Drillhole greater than
Grade Total stones/ 0.25 cts.
Drillhole (cpht) Stones tonne (largest stone)(2)
---------------------------------------------------------------------
04-140-051 12.545 68 0.46 7 stones (1.32 cts.
and 10.53 cts)
---------------------------------------------------------------------
(1) The calculation of theoretical mass was based on the volume of a
vertical cylinder and a kimberlite rock density of 2.21.
(2) Diamond weights were provided in terms of total carats per sieve
class. The reader is cautioned that for interval samples
(12 metres) with multiple stone recoveries, the number of stones
greater than 0.25 carats was estimated by dividing carat weight
by the number of stones in the +9 sieve class for selected
samples and all of the +11 and larger sieve classes.
Large stone recoveries in drillhole 04-140-051 included an estimated 7 diamonds greater than 0.25 carat in size with a combined weight of 13.665 carats. These larger diamonds account for 73.6% of the total carat weight, but represent only 10.3% of the total stones in the parcel. Four of the seven larger diamonds were recovered from samples taken from the upper 30 metres of the kimberlite body, including a 10.53 carat stone that was reported in the Kensington Resources news release of March 7, 2005. The size distribution of the recovered diamonds from this drillhole is shown in Table 2.
The 2004 Evaluation Program (budgeted at CDN $7.6 million) included ten large diameter minibulk drillholes positioned on high-grade zones in kimberlites 140/141 and 122. Two of the minibulk drillholes in kimberlite body 122 were terminated above kimberlite due to drilling difficulties. Samples and results from drillhole 04-140-051 are the fifth of five batches that were recovered from Kimberlite 140/141 breccia beds during the 2004 Evaluation Program. Minibulk samples collected in this program will provide additional diamonds that will be used to increase the level of confidence in grade forecasts, and for revenue modeling by De Beers' experts. A recently revised map of kimberlite body 140/141 showing location of the 2004 drillholes is posted on the Kensington Resources Ltd. website at www.kensington-resources.com.
Table 2: Summary of Macrodiamond Recovery from LDDH 04-140-051 by Sieve Size Category
