The phase 4 program comprised a total of 113 drill holes for 18,393 meters on both the Core and Central properties.
Carolina Tin-Spodumene Belt map showing Piedmont resource, new pegmatite discoveries and historical data
10 of the 12 holes drilled on the Central property intersected significant mineralisation, including:
- 36.0 metres at 1.11% lithium oxide from 15 metres and 44.9 metres at 1.30% lithium oxide from 72 metres in hole 19-CT-19; and
- 13.0 metres at 1.28% lithium oxide from 169 metres and 7.3 metres at 1.37% lithium oxide from 203 metres in hole 19-CT-26.
6 of the 7 holes drilled on the Core property intersected significant mineralisation, including:
- 14.8 metres at 1.55% lithium oxide from 81 metres and 12.4 metres at 1.02% lithium oxide from 35 metres in hole 19-BD-332; and
- 12.3 metres at 1.55% lithium oxide from 69 metres, including 5.1 metres at 2.13% lithium oxide from 76 metres in hole 19-BD-333.
These drill results continue to expand the extent of mineralisation on both properties.
At Central, mineralisation has been extended laterally, to the southwest, and down dip.
At the Core property, 5 of the 7 holes confirmed a significant new flat lying pegmatite in the southwest portion of the property.
Additionally, Piedmont has undertaken soil sampling over the past year which has proved to be a valuable exploration tool within the Carolina Tin-Spodumene Belt.
Map showing maximum lithium assays for rock chip samples for each area
This year’s soil sampling program followed by rock chip sampling has led to the discovery of five new spodumene-bearing pegmatites on Piedmont exploration properties.
Recent XRD analysis from two composite samples, one from Core and one from Central, continue to identify spodumene as the only lithium bearing mineral identified.
Potential for mine life extension
Piedmont president and chief executive officer Keith D. Phillips said: “We are excited by the continued positive news on the exploration front.
“In 2019 we increased our Mineral Resource Estimate from 16.2Mt @ 1.12% to 27.9Mt @ 1.11%, and we believe there is significant potential for further increases.
“The Carolina Tin-Spodumene Belt is one of the world’s largest spodumene occurrences, and as we continue to build our land package and have exploration success, the potential for mine life extension or throughput expansion will be an important area of focus.”