Skip to main content
  4. Delta Lithium provides Yinnetharra Lithium and Tantalum MRE update

Delta Lithium provides Yinnetharra Lithium and Tantalum MRE update

 

Published by
 Global Mining Review,

Delta Lithium Ltd. has announced an updated mineral resource estimate (MRE) for its Yinnetharra Project in the Gascoyne region of Western Australia. Results from recent infill drilling at the Malinda Prospect and initial Jameson exploration drilling have supported the evaluation of an independent MRE prepared by Snowden Optiro.

Highlights:

  • 140% increase in the Indicated lithium Mineral Resource at Malinda, now totalling 16.1Mt @ 1.0% Li2O, based on an average 40 m x 40 m drill spacing.
  • 74% of lithium MRE at Yinnetharra is now classified as Indicated.
  • Total updated lithium MRE of 21.9 Mt @ 1.0% Li2O and 75 ppm Ta2O5, representing a 15% reduction in tonnes, due to refined wireframe boundaries and pegmatite morphology changes within the previous Inferred material.
  • Additional tantalum Mineral Resource of 17.5 Mt @ 136ppm Ta2O5 and exclusive of the lithium hosted tantalum mineralisation, located proximal to the Malinda Lithium MRE and contained within the same pit shells.
  • Total tantalum MRE at Malinda of 39.4 Mt @ 102ppm Ta2O5 representing a 152% increase in contained Tantalum metal.
  • Tantalum presents as a potential value-add product at Malinda.
  • Exploration drilling last year at the Jameson Prospect has defined a high-grade maiden MRE of 0.8Mt @ 1.66% Li2O, with mineralisation remaining open down plunge.
  • Further heritage surveys are planned across Yinnetharra this year with numerous targets to drill including Jameson and regional.
  • Delta Lithium’s combined lithium and tantalum MRE for Yinnetharra and Mt Ida Projects is currently updated to:

36.5 Mt @ 1.1% Li2O

54.0 Mt @ 126ppm Ta2O5

Commenting on the updated MRE, Managing Director, James Croser, said:

“This resource update has achieved our primary objective of increasing confidence at Malinda, which provides potential base-load feed for any future processing operation at Yinnetharra. The M1 and M36 pegmatites contain a combined 14.6 Mt of indicated resource, providing enough confidence to commence mining studies and aiming for reserve tonnes. The M1 in particular has achieved a saleable SC6 concentrate in metallurgy test work undertaken by the company, and metallurgy testing continues. Further upside from the updated tantalum resource will be investigated as a potential byproduct revenue source, and incorporated into the testwork program. The maiden Lithium estimate at Jameson also provides for an exciting high-grade growth target.

 

This article has been tagged under the following:

Australian mining news Lithium mining news