The results of the rare earth elements assay program are expressed as total rare earth oxides (TREO), including yttrium oxide and ratio of critical rare earth elements (REOc(i)). Values of TREO (REE2O3) presented are the sum of all rare earth oxides of the lanthanide series and yttrium oxide; strictly not a rare earth element, yttrium is included in the total amount of REE because of the chemical behaviour and uses that are similar to the lanthanides.
The Josette showing was re-sampled in a composite of ten (10) one-meter long channels, cut parallel to the 1995 channels. For trench TR-95-30, a new two-meter long channel was cut parallel to the trench blasted in 1995 while for trench TR-95-29, chips samples were taken over 1.5 meters intervals. The total length of the 2012 sampling channels in both trenches (TR-95-29 & TR-95-30) is less than in 1995 by 5.4 m due to destruction of portions of the original outcrops caused by the blasting done in 1995, and also because of the subsequent infilling of the trenches by blocks of rocks and dirt and the strong weathering of the outcrop in trench TR-95-29.
Quality assurance / Quality control
The channels were cut with a rock saw perpendicular to the main foliation of the iron-rich rock (magnetitite). All the channels are one meter long by 2.5 cm wide and vary in depth from 10 to 15 cm. For each channel, the rock samples were broken into pieces and then placed into a plastic bag. In the case of Trench TR-95-29, chips samples of 5 to 10 cm long, by 5 to 10 cm wide and 1 to 5 cm thick were collected from the weathered outcrop over 1.5 m intervals and then placed into a plastic bag. A numbered tag from the ALS laboratory was inserted into the bag prior to the sealing of the bag with a tie-wrap. The sample bags were carried to the camp by helicopter then loaded onto a float plane to Sept-Iles and sent by a carrier to ALS Laboratories ("ALS") in Val-d'Or (a certified laboratory; ISO 9001:2008 and ISO/IEC 17025:2005 for standards).
The samples were analyzed for all rare earth elements, most traces and major elements. Due to the limited number of channel samples analyzed, no standard or blank were introduced except the one used by the laboratory. Rare earths and trace elements were analyzed using lithium borate fusion of the sample prior to acid dissolution and analyzed by ICP-MS (Induced-Couples Plasma Mass Spectrometry). This method is best suitable for minerals resistant to acid digestion, like some REE-bearing silicates. For REE high grades samples, a re-analysis of the pulp was performed using high sample to volume ratios in addition to Class A volumetric glassware. ALS laboratory used certified high grade rare earth reference materials as part of their standard protocol. Major elements were analyzed using a lithium borate fusion of the sample prior to acid dissolution and analyzed by ICP-AES (Induced-Couples Plasma Atomic Emission Spectrometry). REE, traces and major elements were analyzed at ALS laboratories in Vancouver. For sulphide-bearing samples, copper, lead, silver, zinc and sulphur were digested in aqua regia, then analyzed by AAS technique (Atomic Absorption Spectrometry). Gold was analyzed by fire assay and AAS with a 50g nominal sample weight. Base metals and precious metals were analyzed at ALS in Val-d'Or.
2012 core drilling program
Thirty-one (31) holes (4,207 m) were drilled at Kwyjibo in 2012 with the aim of validating grades, thicknesses and continuity of the REE-Fe-Cu mineralization in the northeastern portion of the Josette horizon, where the best drilling intersections were obtained in 2011 from hole 10885-11-57 with 2.40% TREO over 48.8m and hole 10885-11-60 with 3.61% TREO over 33.1m (see Focus Metals press release dated March 13th 2012).
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