Forget Auric, this is the meat today for IPMs ore, Auric needs Gippys Enhanced Ore Pile, IMHO: 3) Complexed Mineralization - gold which occurs together with other mineral compounds. This type of gold can be associated (i.e. complexed) with clays, black/heavy mineral sands, iron oxides, and with complex matrix chemistry, such as salts (calcium and sodium chlorides),
??? <<An aside- I want a Name for our May 15th Newsletter and I suggested to Chuck Bankes that it be a THREAD that ties it all together- I said SALT!!! Any opinions???>>>>Chuca SALTECH? organics (i.e. humates) and sodium and calcium carbonates. Like refractory gold, complexed gold does not respond to typical extraction processes. Gold located on the Black Rock Property falls within this category. SUMMARY OF GOLD DEPOSITS AND RECOVERY METHODS PREPARED FOR INTERNATIONAL PRECIOUS METALS <TABLE> <CAPTION> GRADE YEARS TO TYPE DEPOSITS FIRE ASSAY RECOVERY RANGE (OPT) NEW TECH DEVELOP MINING COMPANIES --------------------------------------------------------------------------------------------------------------------------------- <S> <C> <C> <C> <C> <C> <C> <C>
1) FREE MILLING ORES
Free Gold Course Placer Yes Simple Gravity 0.01-0.03 No In Antiquity Placer Dome Lode Yes Simple Gravity 0.03-0.75 No In Antiquity AMAK
Free Gold, Fine Oxide Ores Yes Cyanidation & 0.03+ 90 yrs old AMAK, Echo Bay
Flotation/ New Crest Cyanidation (Australia)
Free Gold, Lower Oxide Ores Yes Heap & Vat Cyanide 0.02+ 20 yrs old 5-10 Years Echo Bay Grade Reacting Nevada Producers ----------------------------------------------------------------------------------------------------------------------------------
2) REFRACTORY ORES
Carbonaceous Oxide Ores Yes Pretreatment with 0.07+ 50 yrs old 20 Years Newmont Barrick With Carbon Oxidants & Cyanidation
Gold In Sulphides Sulphide Ores Yes Roasting 0.07+ 80 yrs old 20 Years Homestate, Barrick Tellurides (Cu,Pb,In,As) Pressure Oxida- 0.07+ 20 yrs old 10 Years NCO tion, Cyanidation a Bio-Leach 0.07+ 10 yrs old 10 Years S. Africa (Mintek)
Gold in Sulphides Sulfides of Fe Yes Bio-Oxidation 0.02+ 2 yrs old 10 Years Tonkin Springs (Lower Grade) As. etc. Leach Newmont Gold Quarry
Encapsulated Gold Quartz Veins Some Not Recoverable 0.03+ In R&D 5-10 Years Newmont-still in in Quartz & Sands Difficulty by Present Methods R&D ---------------------------------------------------------------------------------------------------------------------------------- 3) COMPLEXED MINERALIZATION Gold in Ganque Yes, by To be Determined 0.02+ In R&D 2-5 Years IPM & Others In Process of Minerals, Si, Modified and (Some Success) Documentation Clays, Alkali Chemical
In Process of Gold in Micro Yes, by To be Determined 0.02+ In R&D 2-10 Years IPM & Others Documentation Clusters & Modified and (Some Success) Organics Chemical ---------------------------------------------------------------------------------------------------------------------------------- </TABLE>
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B.1.3 Material Events Associated with Black Rock Development
B.1.3.1 1995 Drilling Program and 1996 Wet Chemical Assay
In October 1995, the Company began implementing a systematic strategy for advancing the basin portion of the Black Rock Property. The Company's plan was to begin a drill program and to continue developing and improving the efficiency and effectiveness of its testing process. The program design over the first one square kilometer Black Rock Property grid consisted of one hundred twenty-one drill holes to a depth of thirty meters (100 feet). Samples were collected every 1.32m (
<<<<... INTERNAL FIRE ASSAY TESTING -MODIFIED FIRE ASSAY, NOVEMBER, 1997
As previously discussed, standard fire assay procedures do not provide repeatable measurements of content in the Black Rock material. To that end, the Company has developed a modified fire assay procedure on raw Black Rock Property (head grade) samples. The modified fire assay developed by IPM and confirmed by an Arizona registered State laboratory yielded positive results for gold. Non-destructive elemental determination (Scanning Electron Microscope/Emission Dispersion Spectroscopy) has been used to verify the elemental composition of the metal prills recovered by the modified fire assay. During the last quarter of 1997, IPM conducted well over 700 tests utilizing various methods.
The result was a method that is of longer duration to complete but is successful in the determination of metal, with silver being a recent metal to be identified. Some of the prills were
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weighed, while others were dissolved and determined by Atomic Absorption (AA). The most recent testing has shown values from both secured chain of custody samples collected by both of IPM's consultants Behre-Dolbear and Company and Bateman, as set forth in the following chart:
<TABLE> <CAPTION>
----------------------------------------------------------------------------------------------------------------- LOCATION/ HEAD GRADE HEAD GRADE TYPE INTERVAL IN FEET TYPE OF SAMPLE HOLE # GOLD OZ/T SILVER OZ/T OF COLLECTION ----------------------------------------------------------------------------------------------------------------- <S> <C> <C> <C> <C> <C> 168 0.017 2.770 AUGER 30 - 35 - ----------------------------------------------------------------------------------------------------------------- 181A 0.023 1.800 AUGER 3 - 25 CHAIN OF CUSTODY ----------------------------------------------------------------------------------------------------------------- 143A 0.033 1.490 AUGER 3 - 25 CHAIN OF CUSTODY ----------------------------------------------------------------------------------------------------------------- 181T 0.042 0.020 TRENCH 5 - 25 CHAIN OF CUSTODY ----------------------------------------------------------------------------------------------------------------- 181T 0.080 NOT DETERMINED TRENCH 5 - 25 CHAIN OF CUSTODY ----------------------------------------------------------------------------------------------------------------- 130A 0.052 1.500 AUGER 40 - 45 - ----------------------------------------------------------------------------------------------------------------- 127 0.035 1.300 AUGER 15 -20 - ----------------------------------------------------------------------------------------------------------------- 181B 0.023 NOT DETERMINED AUGER 25 -50 CHAIN OF CUSTODY ----------------------------------------------------------------------------------------------------------------- 181B 0.020 NOT DETERMINED AUGER 25 - 50 CHAIN OF CUSTODY ----------------------------------------------------------------------------------------------------------------- </TABLE>
NOTE: ALL OF THE VALUES FALL WITHIN THE PREVIOUSLY ANNOUNCED RANGES OF GRADE FOR THE BLACK ROCK AREA, HOWEVER, THE ABOVE SAMPLES REPRESENT ONLY TWO LIMITED AREAS.
The Company engaged Bateman who has accepted this technical procedure as a method to proceed to the second stage of the mine development process, being the calculation of a resource statement on the first one square km drilled grid. Reference is made to the headings "Summary Status Statement for the Black Rock Property" and "Stages of the Mine Development Process" for a further description of the work to be completed in the second and later stages of the mine development process.
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B.1.4 SUMMARY STATUS STATEMENT FOR THE BLACK ROCK PROPERTY
Over the past 4 years, IPM has been engaged in the exploration for precious metals on the Property. When IPM began exploring for mineralization on the Property, IPM was not aware of the fact that the Property represented a new type of precious metals deposit, currently identified as "Complexed Mineralization", being mineralization associated with clays, black/heavy mineral sands, iron oxides, and with complex matrix chemistry, such as salts (calcium and sodium chlorides), organics (i.e. humates) and sodium and calcium carbonates.
IPM's initial exploration program involved the testing and assaying of samples taken from the Property for mineral content. The testing included outcrop, bedrock, soil sampling, etc., with analyses consisting of geochemical testing and/or assaying; geologic assessments to determine the potential geologic environment; geophysical studies to expand the knowledge of the Property and to identify the potential for new or hidden geologic targets; and the quantification and placement of the Property into a geologic model.
IPM's initial exploration program utilized a multitude of standard mining methodologies for initial determinations of mineral content, and these results convinced IPM of the presence of anamolous precious metal values. Although these different methodologies indicated the presence of precious metals, IPM was unable to obtain precious metal values using the industry recognized standard fire assay. As such, the scientific challenge for IPM became how to quantify mineral content from samples taken from the Property using an industry recognized assay method.
As stated in IPM's press release of November 14, 1997, IPM is now able to measure the amount of mineralization in a given sample taken from the Property using an industry recognized assay method. This step is significant since the ability to measure the amount of mineralization in a given sample, through what has been termed as a Modified Fire Assay Procedure, will now allow IPM to progress the Property to the next stage of development, being the preparation of a Resource Statement. In conjunction with the preparation of a Resource Statement for the drilled one square kilometre grid, IPM will continue exploration work on the
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Property outside of this area.
A Resource Statement requires an area be drilled to depth and width according to a certain spacing formula (i.e. holes so far apart, samples taken every "x" number of feet) in an effort to determine the aggregate amount of mineralization that is likely contained on the drilled one square kilometre grid and define those areas where the mineralization is concentrated or depleted. Mining geologists and engineers examine the geology and assay data from the drilling program and integrate that information in a statistical model to estimate average grade and tonnage which "defines" that specific portion of the property tested. Generally speaking, the Resource Statement stage can take up to 2 years and practically, some of the feasibility studies can be done concurrently. IPM has now commenced this stage for the drilled one square kilometre grid.
Upon completion of the Resource Statement, and conditional upon there being sufficient mineralization contained therein, IPM would progress to the next stage of development, being the preparation of a Feasibility Study. A Feasibility Study evaluates, for a specific property, all of the tasks and costs associated with the extraction and sale of the mineralization to determine if there is an economic basis for actually building a mine on the property. The study is applied to the resource that has been defined in the second stage of this process and can take up to 2 years. The distribution and variations of grades seen from the Resource Statement become the benchmark for the grade control and ultimate planning in a mining operation to ensure the greatest percentage of precious metals will be recovered in the mill, at least to the quantity determined by the head grade analysis.
The final stage of a mining project if the economics are favorable, staking the property to operating status. Generally speaking the permitting, construction and development stage can take approximately 1 to 3 years after the completion of the feasibility analysis. Chucaquoteitisallinthe TanksandThe Sludge-Here Comes The Sludge! U be the judge. |