Round 9 EDGI Results
Mineral Resources Tasmania (MRT) has released the first two Round 9 EDGI co-funded drilling project reports, completed in October - November 2024, to Open File. Reports from the remaining two Round 9 projects are expected to be made Open File later in 2025.
Mineralised quartz vein within the Foley Zone, from drill hole C2124A, assaying 2.28 % WO3 from 798.0 m to 799.8 m.
The two reports currently being made Open File cover projects focused on critical minerals targets:
- Foley Zone (Tungsten, Tin, Copper, Flourine) - Holes C2123 & C2124(A) – Rockwell Minerals (Tas) Pty Ltd
- Bryans Road (Rare Earth Elements (REE)) – 71 holes - ABx Group Limited
Data provided includes the Final Report and all available geological, geochemical, and geophysical data, as well as drill core / sample photos. MRT have collected hyperspectral data from C2124(A), which can be requested from info@mrt.tas.gov.au. Drill core and RC samples are available for viewing, by appointment, at the Mornington Core Library.
The Foley Zone EDGI project was designed to test beneath historically drilled Foley Zone tungsten mineralisation, deep beneath the Cleveland mine workings and the currently defined Foley Zone resource. Foley Zone mineralisation intersected in drill hole C2124(A) consisted of a continuous zone of approximately 420 m of quartz ± wolframite ± scheelite ± molybdenite ± fluorite ± chalcopyrite veining and lesser breccia, within strongly altered host rocks, from 672 m – 1092 m. At a 0.1 % WO3 cutoff, assays returned a length weighted 319.5 m at 0.18 % WO3 from 772.4 m to 1091.9 m but includes multiple intervals at higher WO3 cutoffs.
Numerous intervals of other critical minerals occur within this broad zone, with some examples at the stated cutoffs including:
- Multiple intervals of bismuth above a 0.05 % Bi cutoff, such as 20.3 m at 0.1 % Bi from 779.5 m
- Numerous intervals of molybdenum above a cutoff of 0.05 % Mo, such as 36.95m at 0.08% Mo from 879.15 m
- Several zones of flourite above a 4.0 % CaF2 cutoff, such as 7.2m at 7.03 % CaF2 from 507.35 m
- Numerous zones of rubidium (critical mineral in the US) above a 0.1 % Rb2O cutoff, including 76.75 m at 0.15 % Rb2O from 840.35 m.
The Bryans Road EDGI project aimed to test for Dysprosium and Terbium (Dy+Tb) REE mineralisation, comparable to that intersected in the earlier exploration hole RM336. Dy and Tb (both heavy REE) are critical minerals. Round 9 EDGI drilling occurred in a previously untested area to the west of that hole and north of the company’s Deep Leads REE resource.
71 holes for 923 m (624 samples) were completed. The EDGI drilling intersected northern extensions to the Deep Leads REE mineralisation, as well as deep clay layers in a paleo river system northwest of Deep Leads. Whilst not heavily mineralised, new and encouraging geological information was obtained. As a result, further step-out drilling is planned.
Documents:
Company Report - Onshore 24_9032: Drilling Report for: EDGI Round 9, EL7/2005 Cleveland Project