Yalbra Project (BUX)
The Yalbra Graphite Project is located 250km North West of Meekatharra and 280km East of Carnarvon, Western Australia, and covers an area of 22km2.
Buxton has been systematically explored for graphite mineralisation, undertaking mapping, a heli-VTEM survey, several rounds of drilling, petrology, two resource estimates and metallurgy test work.
During November 2013, the Company completed a 15 hole RC drilling program for 1,674m at Yalbra. This drilling confirmed that very high-grade graphite occurs within multiple zones over 500m strike length and is open at depth and along strike including;
YBRC001 32m @ 23.4% TGC inc. 7m @ 32.6% TGC
YBRC002 14m @ 22.3% TGC inc. 6m @ 26.8% TGC
YBRC011 14m @ 21.5% TGC inc. 5m @ 33.0% TGC
YBRC012 31m @ 22.9% TGC inc. 5m @ 30.2% TGC
YBRC015 31m @ 22.5% TGC inc. 6m @ 33.0% TGC
These are among the highest grade x thickness graphite drill intercepts reported in Australia. Petrographic analysis indicates that a significant portion of graphite occurs as medium to coarse flakes. In February 2014, Buxton announced a maiden very high grade inferred graphite resource estimate for Yalbra to JORC Code reporting standards:
2.27Mt @ 20.1% TGC
In July 2014, Buxton completed a combined RC and Diamond drilling program of 17 holes for 2476m Yalbra. An updated JORC compliant Mineral Resource Estimate was calculated for the main zone of graphite mineralisation located within the boundaries of E09/1985. The Mineral Resource is in the inferred category at:
4.0Mt @ 16.2% TGC, using a 4% TGC cut-off
Metallurgical testing results confirmed that a significant portion of the graphite exists as medium to coarse flakes within high-grade microbands. Observations show that graphite flakes generally range from 100 to 500 microns long and in some cases reach over 1mm in length. Fine-grained graphite also occurs but is mainly confined to lower grade micro-bands. The typical crystal size therefore in the high-grade micro-bands is well above the commercial definition for coarse flake graphite, which is >150 microns in length.
The Yalbra Project represents an exciting opportunity to delineate substantial additional high grade graphite resources.