Whispering Ridge - Site Pictures, Rock Samples & Drilling to 2008 Queensland Australia

OMODEI MINING ENTERPRISES

BN 18862986

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Whispering Ridge - Site Pictures, High grade Magnetite Rock Sample Results

and Drilling to date 2008

The main objective has been to prove up a high grade magnetite resource which will be extractable from an open pit, pits or a series of pits. The magnetite product must be amenable to washing coal. This product has immense environmental significance as it removes any dilitarious elements from natural coal. Beside the Queensland and New South Wales coal industries, there is also the potential export of such high grade magnetite to overseas coal producers and users. The main use of iron ore in Queensland is magnetite to provide a dense medium for coal washing. Coal is washed to improve the quality by removing impurities. The magnetic susceptibility of magnetite enables it to be readily recovered and much of the magnetite is recycled.

Available is a detailed summary of the analysis of ground and drilling samples by BHP/CSIRO as reported in referenced DME Annual Reports 3 May 1996, 3 May 1997 and 3 May 1998.

The specifications for magnetite or heavy media separation plants (HMS) use for coal is not widely known. All the details are not fully expanded on within this report but will provide a basic summary of those requirements from the original evaluations:-

BHP/CSIRO Sample Analysis

BHP conducted a series of detailed magnetic analyses on several surface samples which two of the magnetite samples were retrieved from Snowmist’s drilling programme (Samples No’s 20537 and 20544) together with a further six surface samples (collected by Rob Kitch of BHP Coal) were selected and tied into local grid surface co-ordinates. All eight samples were submitted to CSIRO North Ryde and determinations of:

magnetic susceptibility

magnetic saturation

magnetic remanence

density

susceptibility vs. temperature curves

koenigsberger ratio

were carried out on 38-45 micron magnetite concentrates.

The results from this work indicated that the magnetite was suitable for use in coal preparation plants. The following table sets out the results from this work:-

Size of Coal Washery Product (different for each plant/mine)

There are four main magnetic properties to be evaluated to determine the suitability for HMS use. These determine the recoverability of the magnetite in the circuit. The tests require a magnetometer apparatus for their determination. The following table lists the specification for HMS grade magnetite:-

Nominal Size (-53 micron)

Iron Analysis on the Surface Sampling by BHP coal on WR Sampling

The ratio of ferrous iron to total iron (Fe++/Fe) should be in the range of 0.28 to 0.34. This ratio is an indication of the degree of oxidation in the magnetite and indicates the presence of an undesirable haematite phase. This chemical property is particularly important when evaluating "surface" samples of magnetite. Oxidised magnetite samples will only provide "indicative" estimates of the properties that could be expected from "fresh" samples.

Chemical analysis is carried out to determine the amount of impurities such as metallic Fe; siderite; pyrite; haematite. The test consists of digesting a sample with HCI and titrating the sample to yield a ferrous Fe and total Fe result. With a calculation of ferrous Fe : total Fe a value results which gives an estimate of the purity of the material which is compared with a typical result of 0.32.

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WHISPERING RIDGE MAGNETITE

PROJECT MDL 298

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Whispering Ridge Magnetite Project MDL 298 Far North Queensland

The near pure magnetite at Whispering Ridge deposit was initially discovered by RGC Exploration (a member of the Renison Goldfields Consolidated Group) under Joint Venture with Snowmist Pty Ltd and reported in August 1995 (See Figure 2).

The 18 ground surface samples averaged 68.5% Fe. Full details were reported in the DME Annual Report EPM 10078 P/E 3 May 1996.

Figure 2 Whispering Ridge MDL 298 Geology and Topography as originally reported in DME Open File CR# 27638 by RGC Exploration.

Sample Number		BHP#1	BHP#2	BHP#3	BHP#4	BHP#5	BHP#6
Density	gm/cc	4.787	4.718	4.817	4.893	4.729	4.787
Susceptibility	uG/Oe	135030	159580	201420	456750	450510	387500
Hysteresis	.	.	.	.	.	.	.
Coercivity	Oe	116	110	104	108	99	112
Saturation Magnetisation	G	290	265	271	323	342	330
Saturation Remanence	G	29.3	23.6	26.6	32.6	29.1	31.7
K-T	C	580	580	580	580	580	580

Course	55 to 60%
Medium	62 to 66%
Fine	86 to 90%
Superfine	92 to 96%
Ultrafine	95 to 99%

Mass Density	>4.9
Percent Magnetics	>96%
Specific Saturation Moment	>80 emu/g
Specific Susceptibility	>0.050 emu/g/oersted
Coercive Force	>50 oersted

Surface Rock Magnetite Fe3O4

Whispering Ridge Site View

Whispering Ridge Site Drilling

Whispering Ridge Site View

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