Rimfire Pacific Mining (ASX: RIM, 'Rimfire' or 'the Company') is pleased to advise that assays received for the remaining three diamond holes drilled at the Melrose prospect has intersected further high-grade nickel (Ni), cobalt (Co) and scandium (Sc) mineralisation at shallow depths within weathered ultramafic rocks.
Commenting on the announcement, Rimfire's Managing Director Mr
The three remaining diamond holes at Melrose have reported assays including; 2.3m @ 0.15% Ni, 0.08% Co and 461ppm Sc from 3 metres and 5.0m @ 0.68% Ni, 0.07% Co and 302ppm Sc from 16 metres in FI2398
4.9m @ 0.36% Ni, 0.11% Co and 349ppm Sc from 5 metres, and 4.3m @ 0.42% Ni, 0.09% Co and 296ppm Sc from 10.1 metres in FI2399
10.0m @ 0.14% Ni, 0.10% Co and 456ppm Sc from 1 metre in FI2400 including 5m @ 0.17% Ni, 0.17% Co and 568ppm Sc from 5 metres
The latest results follow the previously reported drill intersection;
21m @ 0.11% Ni, 0.07% Co, and 529ppm Sc from 3 metres in FI2397 including 9m @ 0.17% Ni, 0.15% Co and 688ppm Sc from 14 metres
Melrose is a prospect within the
Four diamond holes (FI2397 to FI2400 - 639.6 metres, were drilled in June
Initial aircore drilling by Rimfire in early 2022 (see Rimfire's ASX Announcement dated
FI2163 - 12m @ 0.23% Ni, 0.11% Co, and 314ppm Sc from 9 metres,
FI2164 - 9m @ 0.50% Ni, 0.02% Co, and 209ppm Sc from 6 metres,
FI2174 - 12m @ 0.32% Ni, 0.12% Co, and 221ppm Sc from 3 metres,
FI2175 - 3m @ 0.24% Ni, 0.07% Co, and 220ppm Sc from surface,
FI2176 - 9m @ 0.17% Ni, 0.10% Co, and 362ppm Sc from 3 metres, and
FI2178 - 18m @ 0.10% Ni, 0.04% Co, and 286ppm Sc from 3 metres.
Significantly resampling of selected samples from the aircore drilling showed that laterite zone also contains anomalous levels of platinum (Pt) + palladium (Pd) (PGEs) up to 0.31 g/t Pt + Pd (see Rimfire's ASX Announcement dated 27 June 2022).
All four diamond drillholes passed through the laterite zone before intersecting an east-dipping sequence of interlayered ultramafic rocks (pyroxenite, wehrlite, and serpentinised dunite) that is fault bounded against a gabbro to east and volcaniclastic sediments to the west.
The flat - lying ferruginous (laterite) zone, which is best developed over the pyroxenite rock types has an average thickness of approximately 15 metres and increases in thickness to the west.
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