Sometimes worthwhile land can be offered to show BD and Bateman caliber COC recovery techniques that will now take GOLD to the next level of non conformity of Extraction of Microfines by non other than the Teams- AURIC ( gasp-split my sides) to Dames & Moore ( Respect, golly gosh)RE: JUST OUT at another of my investments...PROOF that ridged looses of the past can be overcome...Like Maybe JUST maybe Johnson and Lett Tech has evolved past the Old Naxos Tech to a new level as Auric had done in us at IPM with the stick and Carrot Wipe they ransomed their tech with as told to old shareholders....the deal that works, works for me: -0.13 OPT AU Assayable COC ORE!
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intergoldcorp.com Sample Preparation and Extraction Tests
...hole and 5-foot increment was poured from the individual bags into the 6" tumbler. After mixing for an hour, the material was split with the microsplitter to obtain the three 100-gram chemical test samples and one 15-gram fire assay sample. The splitting and weighing procedure was the same as described earlier in this section for 98C-14 and 97M-9.
For sample 98C-19 a 10-gram sample was obtained from each 5-foot increment sample bag and combined for a screen analysis. For samples 98C-1 and 98C-27 a 50-gram sample was obtained from the tumbler after mixing. Table 1, Extraction Sample Grind, presents the particle size data. The table shows two items clearly. First, putting the sample through the pulverizer twice (98C-14 & 97M-9) significantly reduces the quantity of plus 150-mesh material in a sample. Second, putting the sample through the pulverizer only once can result in a wide range of plus 150-mesh material depending on the core characteristics. The plus 150-mesh material ranged from 15.8 to 49.2 percent for core material pulverized only once.
Extraction Tests
An Item in the sample selection procedure was to choose two samples about which no analytical information was known. In order to establish a basis of comparison for the precious metals content (gold & silver), a composite sample for each core hole tested was prepared and fire assayed. Previous work by AuRIC established an effective flux mixture for fire assaying the Blackhawk Project core samples. The effectiveness of the separation of the lead button and slag can be seen in Photograph No. 6, Fire Assay Buttons and Slag.
Table 2, Extraction Composite Samples Fire Assay Analyses, presents the fire assay results for gold. Appendix B, March 30, 1999 Assay Report, contains both the gold and silver analyses. Table 2 also contains a calculated average value of the gold based on the 5-foot increment fire analyses previously performed on core holes 98C-14, 98C-1, and 98C-27.
Prior to initiating the verification of validity of developed extraction methods program, AuRIC had developed three workable processes referred to as Process 1, Process 2, and Process 3. As part of the verification effort AURIC provided a demonstration on Monday, March 22, 1999 of the three processes to be evaluated. The purpose of the demonstration was to familiarize Dames & Moore with the complete cycle of the three processes including the Chiddey Method for gold and silver precipitation from solution. The demonstration sample was 98C-14, #1.
The Chiddey Method was developed by Alfred Chiddey as a suitable method to assay gold and silver in cyanide solutions. The process works equally well in strong, weak, poor quality, or pure solutions. The basic process uses lead acetate and zinc powder to produce a lead, gold, and silver precipitate on the zinc. Concentrated hydrochloric acid is added to consume any free zinc.
TABLE 1
EXTRACTION SAMPLE GROUND
(grams)
SAMPLE NO.
WEIGHT
TOTAL
100 MESH 150 MESH
WEIGHT
% PLUS
% MINUS
WEIGHT
TOTAL WEIGHT
% PLUS
% MINUS
98C-14 #1
50.0
13.9
27.8
72.2
7.0
20.9
41.8
58.2
98C-14 #2
141.2
1.1 1
0.8
99.2
7.5
8.6
6.1
93.9
97M-9
46.9
0.1 1
0.2
99.8
0.4
0.5
1.1
98.9
98C-19
40.0
6.1
15.2
84.8
5.8
11.9
29.8
70.2
98C-1
50.0
1.7
3.4
96.6
6.2
7.9
15.8
84.2
98C-27
50.0
17.6
35.2
64.8
7.0
24.6
49.2
50.8
Note 1: These two samples were run through the Bico Disc Pulverizer twice, all other samples were run once.
TABLE 2
EXTRACTION COMPOSITE SAMPLES
FIRE ASSAY ANALYSES
AuRIC ID NO.
COMPOSITE SOURCE
SAMPLE SIZE
(g)
DORE WT
(mg)
SOLUTION
Au (ppm)
COMPOSITE
Au OPT
CALCULATED 1
Au OPT 2
1541A
98C-14 (-295' Thru –310')
15.0
0.084
1.80
0.035
0.062
1542A
97M-9 (-10' Thru –30')
15.0
0.099
2.88
0.056
NA 3
1543A
98C-19 (-5' Thru –20')
15.0
0.143
6.58
0.128
NA
1544A
98C-1 (-190' Thru –205')
15.0
0.089
2.62
0.051
0.026
1545A
98C-27 (-120 Thru –140')
15.0
0.076
2.98
0.058
0.100
Note: Holes 98c-14, 98C-1, and 98C-27 have been analyzed in 5-foot increments. The values are the numerical average for those increments.
OPT = Troy ounces per short ton sample.
NA = Not available, not yet analyzed.
The Chiddey Method can be used to recover gold and silver from non-cyanide solutions as well, but the ease of separating the precipitate will vary with the solution composition. The use of the Chiddey Method provides a way of checking the results of the extraction process solution analyses.
The verification of validity of developed extraction methods program was planned to test five different core samples by three different processes. As a base approach, Process 1 was established by AuRIC as a
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Chuca-go Maxam and Global also.... Go MGAU- Sometimes life ain't like a box of Baby Ruth Candy Bars. J and L hopefully don't ask for the the FIRST 5 Million in the checks, spraed the Tax Ramifications OUT over many years, thus, dillution is spreed out! Over THE years. JMHO- I am not telling any one what to do, but do it the make sense way is always best for all. Like, the "needs of the many...over the needs of the TWO." Pay Long and Prosper!!! I am a twerp sometimes, but truer things are said in jest. |
