09/22/2005- Microdiamond Recoveries for Kimberlite

[Franko10 ™]

Kensington Resources Ltd.: 2004 Microdiamond Recoveries for Kimberlite 120


13:24 EDT Thursday, September 22, 2005

VANCOUVER, British Columbia (Business Wire) -- Kensington Resources Ltd. (the "Company") (TSX VENTURE:KRT) announces that it has received from the operator, De Beers Canada Inc., microdiamonds results for eight coreholes targeted on Kimberlite Body 120 during the 2004-2005 program at the Fort a la Corne Diamond Project in Saskatchewan. The principal objective of the 2004-2005 program on Kimberlite 120 was to acquire representative kimberlite and diamond information for construction of a new geological model and to hunt for higher grade zones within the body.

"A substantial number of diamonds were recovered from this body including three small macrodiamonds," states Robert A. McCallum, President and CEO of Kensington Resources Ltd. "Once completed by De Beers, grade forecasts for individual kimberlite units will be used to prioritize the body for delineation drilling and minibulk sampling for recovery of macrodiamonds."

The 120 kimberlite occurs in the main cluster of the Fort a la Corne Kimberlite Province and is located on western side of the 148/147/120/220 volcanic complex with the 148 kimberlite directly to the southeast and the 220 kimberlite immediately to the east. Eight coreholes on Kimberlite 120 intersected 940.05 metres of kimberlitic material from a total meterage of 1,968.0 m. The top of the first kimberlite intersection ranged between 102.0 to 115.88 m and the bottom of the last kimberlite unit situated between 234.5 and 243.6 m. Kimberlite thicknesses varied between 9.62 and 185.8 m. Figure 1 shows the location of historical and recent drillholes on Kimberlite 120.

A total of 962 microdiamonds were recovered from 643.4 kg of kimberlite core in 79 samples utilizing caustic dissolution methods at the Saskatchewan Research Council (SRC). Microdiamond recoveries were audited and individual stone sizes calculated by experts at the De Beers Kimberley Microdiamond Laboratory (KMDL) in South Africa. Only microdiamond data from the SRC are reported here. Summaries of diamond recovery by kimberlite drillhole and by sieve category are shown in Tables 1 and 2.


Table 1: Summary of 2004 and Historical Kimberlite 120 Microdiamond
Results

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Stones
Carat Average larger
Number of Sample Weight # of Stones/ than
Drillhole Samples(1) Mass (kg) (carats) Stones 10kg 0.5 mm
--------------------------------------------------------------------
04-120-021 12 97.75 0.0073550 127 13.0 0
--------------------------------------------------------------------
04-120-022 16 129.62 0.0104550 155 12.0 1
--------------------------------------------------------------------
04-120-023 10 82.05 0.0095050 102 12.4 1
--------------------------------------------------------------------
04-120-024 1 8.05 0.0004100 9 11.2 0
--------------------------------------------------------------------
04-120-025 12 98.40 0.0355650 196 19.9 1
--------------------------------------------------------------------
04-120-026 10 81.65 0.0072700 137 16.8 0
--------------------------------------------------------------------
04-120-027 11 89.16 0.0061850 99 11.1 0
--------------------------------------------------------------------
04-120-028 7 56.72 0.0075550 137 24.2 0
--------------------------------------------------------------------
Total: 79 643.40 0.0843000 962 15.0 3
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120
Historical(2) 13 DH;
59
samples 1104.68 0.1664583 734 5.36 6
--------------------------------------------------------------------

(1) For the 2004 samples, representative sample intervals ranged from
6.5 to 18 metres of kimberlite intersection; sample weights
ranged from 8.05 to 8.35 kg
(2) Due to the wide variance in sample mass per historical drillhole,
the average stones/10 kg for the historical results was weighted
by the mass of individual samples (a simple average of drillhole
values was calculated at 4.77 stones/10 kg).



Microdiamond recoveries in 2004 compare favourably with historical recoveries which are shown at the bottom of Table 1. The average stone density of the 2004 recoveries is significantly higher at 15 stones/10kg and there are similar recoveries of stones larger than 0.5 mm (per kg).

Microdiamonds recovered from the 2004 program will be combined with all suitable historical diamond results, integrated with the geological model, and then submitted to Mineral Resource Management (MRM) of De Beers for grade forecasts of commercial-sized diamonds based on statistical and graphical treatment of the data. This information will be utilized to determine the prospectivity of potential higher grade zones.


Table 2: Kimberlite 120 Microdiamond Recoveries by Drillhole and
Sieve Category

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+0.075 +0.106 +0.150 +0.212 +0.425 +0.600 +0.850 +1.400
mm mm mm mm mm mm mm mm
Drillhole Sieve Sieve Sieve Sieve Sieve Sieve Sieve Sieve
--------------------------------------------------------------------
04-120-021 39 54 19 10 0 0 0 0
--------------------------------------------------------------------
04-120-022 58 54 31 9 1 0 0 0
--------------------------------------------------------------------
04-120-023 36 35 14 10 0 1 0 0
--------------------------------------------------------------------
04-120-024 3 4 1 1 0 0 0 0
--------------------------------------------------------------------
04-120-025 79 74 31 10 0 0 1 1
--------------------------------------------------------------------
04-120-026 56 40 21 17 1 0 0 0
--------------------------------------------------------------------
04-120-027 25 49 13 7 0 0 0 0
--------------------------------------------------------------------
04-120-028 59 44 22 10 1 0 0 0
--------------------------------------------------------------------
Total: 355 354 152 74 3 1 1 1
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For additional information and maps concerning the 2004 drilling results from Kimberlite 120, please see the Company's website at www.kensington-resources.com.

Brent C. Jellicoe, P.Geo. is the Qualified Person for the Company and has reviewed the technical information herein. Microdiamond recovery was performed by Saskatchewan Research Council of Saskatoon. All aspects of quality assurance, quality control and sample chain of custody for the Fort a la Corne Joint Venture are managed by De Beers Canada Inc., the project operator.

Kensington Resources Ltd. is an exploration and mine development company currently focused on the high potential Fort a la Corne Diamond Project in Saskatchewan. The management team includes strong technical expertise and is committed to reaching a diamond producer status for the realization of shareholder value. The Fort a la Corne Diamond Project is a joint venture among Kensington Resources Ltd. (42.245%), De Beers Canada Inc. (42.245%), Cameco Corporation (5.51%) and UEM Inc. (carried 10%). After fifteen years of exploration at Fort a la Corne, the joint venture partners have entered into an accelerated results-driven advanced exploration and evaluation phase targeted on reaching a pre-feasibility decision in 2008. The Fort a la Corne Diamond Project includes 63 identified kimberlite bodies within the largest diamondiferous kimberlite cluster in the world.

Robert A. McCallum, President & CEO

FORM 20-F FILE #0-24980

LISTED IN STANDARD & POOR'S

The TSX Venture Exchange has not reviewed and does not accept resp onsibility for the adequacy or accuracy of this news release.

Kensington Resources Ltd. (TSX VENTURE:KRT)

Kensington Resources Ltd.
Robert A. McCallum
President & CEO
[phone] or Toll Free: 1-800-514-7859
Fax: [phone]
[e-mail]
OR
Kensington Resources Ltd.
Mel Gardner
Manager Investor Relations
Toll Free: 1-800-710-6083
[e-mail]
www.kensington-resources.com