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Gold/Mining/Energy : Canadian Diamond Play Cafi -- Ignore unavailable to you. Want to Upgrade?

To: WillP who wrote (7588)

1/1/2014 5:47:56 PM

From: Rocket Red

Respond to of 16207

I think you will be telling us :)))

998.7

2180

1244

813

549

283

198

111

best pipe

999.4

1132

971

602

407

215

130

second best

1001.1

105

third

1000.8

906

652

429

283

171

last

thats as close as i'm going to come in guessing

To: WillP who wrote (7588)	1/3/2014 11:48:28 AM
From: Letmebe Frank	Read Replies (1) \| Respond to of 16207

Will, here is my guess on the source for each sample. Thanks for putting this together. Weight: 999.4 Winspear-Snap Lake? 998.7 Aber? 1001.1 Not sure why no micros for this lot. Maybe this was a winspear sample. 1000.8 Diamet?? LMBF

To: WillP who wrote (7588)

1/3/2014 2:25:41 PM

From: WillP

Read Replies (2) | Respond to of 16207

Here are some historical diamond counts for various deposits. They all pretty much weigh the same.

The challenge is: Estimate a grade per tonne and if you can, try to name the deposit.

Weight 0.106 0.15 0.212 0.3 0.425 0.6 0.85 1.18 1.7 2.36 3.35 4.72
999.4 1132 971 602 407 215 130 65 28 13 2 1 0
998.7 2180 1244 813 549 283 198 111 49 23 7 2 0
1001.1 na na na na 105 90 45 17 8 4 1 0
1000.8 906 652 429 283 171 92 31 15 7 3 1 0

I'll give the answers later on....

And the answers are:
The first one is the 3,314 kilograms reported in mid-December for Kelvin. Its 0.85-millimetre-sieve grade was 3.45 carats per tonne.

The second one is the 569.1 kilogram core drilling test of CH-6, reported in 2009, which averaged 8.0 carats per tonne on a 0.85-millimetre sieve.

The third one is the 14.1-tonne core drilling test of CH-6 completed in December 2010. It averaged 2.84 carats per tonne on a similar sieve. (The diamonds from 0.425 to 0.85 mm are from the check sample processed concurrently.)

The final one is the 222-tonne surface excavation test of CH-6 completed in December 2013. It averaged 2.70 carats per tonne on a similar sieve. Again, the counts for the smaller sieve sizes are from the concurrent check sample.

Interesting, yes?

WillP