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Noble Mineral Exploration Inc.: Project 81 Exploration Update Crawford Nickel - Cobalt Project Encouraging Preliminary Results from Mineralogical Studies
Toronto, Ontario / TheNewswire / June 11, 2019 - Noble Mineral Exploration Inc. ("Noble" or the "Company") (TSX-V:NOB, FRANKFURT: NB7, OTC.PK:NLPXF) is pleased
About this update from Noble Mineral Exploration Inc.
[{"type":"text","content":"Toronto, Ontario / TheNewswire / June 11, 2019 - Noble Mineral Exploration Inc. (\"Noble\" or the \"Company\") (TSX-V:NOB, FRANKFURT: NB7, OTC.PK:NLPXF) is pleased to announce that its Option and JV partner Spruce Ridge Resources Ltd (TSX-V SHL) has released the results of mineralogical studies on drill core samples from the Company's Crawford Nickel-Cobalt project near Timmins, Ontario (see Figure 1). The recent 1,818-metre, 4-hole drill program resulted in wide intersections of up to 558 m of serpentinized dunite and peridotite with consistent concentrations of nickel, cobalt, palladium and platinum (see news release of March 4th, 2019). The purpose of the study was to determine whether the nickel (and other elements) occur in the sulphide state, which could be economically extracted from the ultra mafic host rocks. Twelve samples of drill core were selected from 1.5-metre analyzed intervals, to cover a range of nickel, cobalt and palladium contents as well as differing degrees of serpentinization and a range of sulphur contents. Polished thin sections were made from the core samples and were examined under reflected-light microscope and a scanning electron microscope (SEM), which provided chemical analyses of individual mineral grains to aid in their identification. The following minerals were identified as carrying most of the nickel and cobalt (in order of decreasing abundance): pentlandite (nickel-iron sulphide - 50%), heazlewoodite (nickel sulphide - 35%), awaruite (nickel-iron alloy - 15%) and minor godlevskite (nickel sulphide with minor iron). The pentlandite, which dominates the nickel-bearing mineral assemblage, is considered most promising for economic nickel extraction. In addition to the mineralogical identification study, an analysis was performed on pulp samples of the 12 core intervals from which the mineralogy samples were taken. Table 1 shows a comparison between the Peroxide Fusion analysis and the Aqua Regia analysis for cobalt and nickel and establishes the potential percentages of 'Liberation\" of these key elements. Table 1 DDH No. From(m) To(m) Length(m) Cobalt fusion (ppm) Cobalt AR (ppm) PercentLiberated Ni %Fusion Ni %AR-ICP PercentLiberated S %Fusion CR18-01 165.0 166.5 1.5 240 193 80% 0.669 0.431 64% 0.28 CR18-01 238.5 240.0 1.5 120 105 88% 0.297 0.203 68% 0.02 CR18-01 243.0 244.5 1.5 170 149 88% 0...