SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Gold/Mining/Energy : Canadian Diamond Play Cafi -- Ignore unavailable to you. Want to Upgrade?


To: VAUGHN who wrote (349)12/3/2002 11:41:51 AM
From: Diamond Daze  Read Replies (1) | Respond to of 16206
 
No Vaughn the Garimpiros have found those stones in the past 5 years or so. They more than likely come from the same source one would have to ponder if diamonds are of that size and color maybe all the work done there on the pipes in the past (35 ton) samples are way too small.
Perhaps coarse diamond distribution could change the way pipes are viewed...who knows...DD



To: VAUGHN who wrote (349)12/20/2002 9:34:20 AM
From: Famularo  Read Replies (1) | Respond to of 16206
 
Diamonds North's Blue Ice sparkles
Diamonds North Resources Ltd DDN
Shares issued 10,001,033 Dec 19 close $0.71
Thu 19 Dec 2002 News Release
Mr. Mark Kolebaba reports
DIAMONDS NORTH REPORTS MORE HIGH DIAMOND COUNTS FROM BLUE ICE
Diamonds North Resources has recovered more diamonds from the
100-per-cent-owned Blue Ice project, Victoria Island. Samples were
collected from Sculptor, Pegasus and Zeta kimberlites along the central portion of the Galaxy structure. The Pegasus lies directly on the Galaxy structure; Sculptor and Zeta are parallel and discrete en-echelon bodies. Sculptor A 208.58-kilogram kimberlite sample collected from several trench sites along a 350-metre section of the Galaxy structure yielded 254 diamonds. Sixty-eight of the stones exceed 0.5 millimetre in at least one dimension and 12 stones exceed one millimetre in at least one dimension. The three largest stones recovered measure: 2.22 millimetre by 2.05 millimetre by 1.10 millimetre; 1.57 millimetre by 1.28 millimetre by 0.92 millimetre; and 1.57 millimetre by 1.54 millimetre by 0.68 millimetre. The Sculptor kimberlite has produced some of the largest stones recovered during the 2002 exploration program. This coarse grained, competent, hypabyssal kimberlite contains abundant olivine macrocrysts and numerous indicator minerals. Sculptor forms part of a large kimberlite dike system of unknown width. It lies parallel and adjacent to the Pegasus kimberlite. Sculptor is located 2.5 kilometres west of the Sand Piper kimberlite, which produced 118 diamonds from a 6.49 kilogram drill core sample. Table I below shows diamond recoveries for Sculptor, Pegasus and Zeta kimberlites.

TABLE I DIAMONDS RESULTS

Diamonds recovered
+0.5 mm

Kimberlite Sample Total 1 Axis 2 Axes
weight
(kg)

Sculptor 208.58 254 68 45

Pegasus 336.54 52 7 4

Zeta 234.24 20 2 1

TABLE I DIAMONDS RESULTS

Diamonds recovered
+1.0 mm

Kimberlite Sample Total 1 Axis 2 Axes
weight
(kg)

Sculptor 208.58 254 12 6

Pegasus 336.54 52 1 0

Zeta 234.24 20 0 0
Pegasus
From two test pits over the Pegasus kimberlite a total of 336.54 kilograms of kimberlite were collected. The sample contained 52 diamonds, seven of which exceed 0.5 millimetre in one dimension and one stone measuring one millimetre by 0.97 millimetre by 0.67 millimetre. The Pegasus kimberlite is located 100 metres north of Sculptor and is coincident with a 50 to 75 m wide geophysical anomaly that extends for more than 2 kilometres. The sample collected varies from 90% medium grained olivine bearing to 10% very coarse grained olivine rich macrocrystic kimberlite. Pegasus remains a high priority target as the 2002 sample does not determine the diamond content of each phase of kimberlite encountered. The 2003 drill program will be designed to test the diamond potential of each phase. Zeta A total of 234.24 kilograms of kimberlite obtained from a single surface exposure yielded 20 diamonds, two of which are greater than 0.5 millimetre in one dimension and one that is greater than 0.5 millimetre in two dimensions. The Zeta kimberlite is medium grained containing modest amounts of olivine and is a parallel structure located 4.5 kilometres west of the Sand Piper kimberlite. Table II below shows the diamond size distribution according to square mesh sieve analysis provided by SGS Lakefield Research.

TABLE II
SQUARE MESH SIEVE SIZES

Sample 208.58 336.54 234.24
weight Sculptor Pegasus Zeta
(kg)

Sieve size Diamonds Diamonds Diamonds
+1.180 mm 2 - -
+0.850 mm 2 - -
+0.600 mm 9 1 1
+0.425 mm 21 2 0
+0.300 mm 33 3 1
+0.212 mm 48 7 4
+0.150 mm 69 16 5
+0.100 mm 70 23 9
--------- --------- ---------
Total
stones 254 52 20
========= ========= =========
Results from all three kimberlites show that the central part of the 20-kilometre Galaxy structure is diamondiferous. The Sculptor kimberlite in particular illustrates that portions of the central Galaxy structure are highly enriched in diamonds. This area will be a major focus for exploration drilling in 2003. The coarse grained kimberlite material at Pegasus remains a high priority. Kimberlite samples were collected in the field. Sample bags were sealed in solid containers and shipped by air to SGS Lakefield Research in Ontario. SGS Lakefield's standard caustic fusion diamond recovery method was used for all sample results. SGS Lakefield is accredited by the Standards Council of Canada to the ISO/IEC guide 25 standard for specific registered tests.