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projects

graphite

  • Aukam
  • Buckingham
  • Montpellier
  • Buckingham

    The 100% owned Buckingham Graphite property, covers 480 hectares and is located 7km northwest of Buckingham, Quebec, Canada. Well-maintained bush roads lead directly to the sampled showing and throughout the property. The property is comprised of eight claim blocks within the Central Metasedimentary Belt of the Grenville Geologic Province with graphite occurring in veins and masses within pegmatite, diopside skarn, marble and gneiss.

    Updated Map, Nov 5, 2015

    A 2 kilogram (kg) surface sample, taken from an exposed vein with a head grade of 55.8% Cg (57.9% total C), was concentrated by grinding and flotation and divided into three size fractions: +48, +100 and -100 mesh. All three concentrates returned high grade graphitic carbon (Cg) content with very little losses in the tailings and middling streams. The +48 mesh size (jumbo size) fraction represented 36.6% of the flotation concentrate and was assayed at 99.3% Cg. The +100 mesh size (medium to large size) fraction represented 25.6% of the flotation concentrate and was assayed at 98.8% Cg. The -100 mesh size (fine to amorphous) fraction represented 32.7% of the flotation concentrate and was assayed at 95.3% Cg.

    A second sample was taken from the wall of a historic trench, located roughly 250 metres ESE of the previously announced sample that yielded purity of up to 99.4% Cg (see PR dated February 17th, 2015). Both samples were taken from the “Uncle Zone”, a ~600 meter wide area of mineralization in the SE portion of Buckingham Property, and assays were conducted by SGS Canada Inc. (Lakefield).

    The second sample, with a head grade of 56.0% Cg (58.3% total C), was concentrated by grinding and flotation and divided into three size fractions: +48, +100 and -100 mesh. The +48 mesh size (jumbo size) fraction represented 31.6% of the flotation concentrate and assayed >99.9% Cg*. The +100 mesh size (medium to large size) fraction represented 25.3% of the flotation concentrate and assayed >99.9% Cg*.

    Initial Flotation Test Results

    Concentrate Fraction

    Distribution (%)

    Assay (% Cg)

    +48 mesh

    31.6

    >99.9*

    +100 mesh

    25.3

    >99.9*

    -100 mesh

    37.3

    96.5

    Total recovery (%)

    94.2

     

    * Assay results for +48 mesh and +100 mesh returned values of 101.5% Cg and 100.2% Cg respectively, and are shown above as >99.9%. Further testing is currently being carried out to verify these values. All reported results have an associated measurement uncertainty based on the expected precision and accuracy relating to the method and sample concentration. Values at 100% should not be treated as pure products without additional impurity testing. Testing by party and/or umpire analysis will reduce, but not remove measurement uncertainty of the method.

    Note: Flotation test analysis from a 1kg portion of the 2kg grab sample

    These results were obtained in a single flotation test without process optimization such as acid leach or alkaline roast. Exceptional results from the two samples collected 250 metres apart are extremely encouraging as they indicate that material is widespread within the “Uncle Zone” and could also be qualified as ultra-high-grade graphite.

    Caribou King has therefore decided to make metallurgical studies a top priority in parallel to an aggressive exploration program at its “Uncle Zone”. Purity of Buckingham graphite is to be further defined by additional tests as to get the maximum benefit from it.

    Isabelle Robillard, P. Geo #287 (an Associate of Inlandsis Consultants s.e.n.c.), an Independent Qualified Person under National Instrument 43-101, has reviewed the metallurgical balance sheet and assay results produced by SGS Canada Inc. (Lakefield) and approved the technical information provided in this news release.

    © CKR Carbon Corp. 2014