Tartana Minerals Limited

Tartana Positive Metallurgical Copper Testwork

Tartana Minerals Limited (ASX: TAT) (the Company), is pleased to advise that it has received assays and metallurgical testwork based on sampling the D15 metallurgical hole drilled in May this year. D15 hole was a diamond hole drilled at initially PQ size and decreasing to HQ size and drilled to 300 metres depth and was drilled parallel and below TRC098 which had previously intersected 77 m @ 0.62% Cu.


Highlights:

  • Tartana D15 assays confirm broad zones of copper mineralisation including 76 m @ 0.60% Cu, 178 m @ 0.40% Cu or 221 m @ 0.35% Cu, all from 31 m depth downhole.
  • Excellent copper recoveries (89%) to saleable copper concentrate when testing a sample that was below the resource grade average.
  • Bulk Sample Tomra ore sorting results indicate that using this process will result in a 72% grade increase and recover 71% of the contained copper.
  • Mineralisation trends indicates the presence of a higher grade zones (1 million tonnes @ 0.82% Cu) enabling the potential for a high grade starter pit with the remaining resource at 8.5 million tonnes @ 0.38 % Cu which can be upgraded if required.
  • The results form part of a Scoping Study which will investigate options for third party processing and/or installation of a copper sulphide crushing, milling and flotation plant or a combination of both. This is separate from the current copper sulphate pentahydrate production which is ongoing.

The hole was successfully completed on 13th May 2024. The assay and metallurgical data have now been received and as discussed below, have returned positive results which can be incorporated into a Scoping Study which will also consider processing options. These options include third party processing and/or installation of a copper sulphide crushing, milling and flotation plant and which may be a combination of both.

Tartana Primary Copper Mineralisation

The Company has previously advised the presence of primary copper (chalcopyrite) mineralisation below the Tartana pit floor and in early 2023 reported 45,000 tonnes of contained copper resource to 130 m depth (see ASX release dated 9 February 2023). The details are outlined in Figure 1.

Figure 1. (a) Oxide, transitional and primary (fresh) resource estimation for the Tartana open pit using inverse distance estimation and a 0.2% Cu cutoff grade. (b) Primary copper mineralisation from drillhole D15.

The resource grade and tonnage for the total primary and transitional resources at different cut-off grades are presented in Figure 2.

Figure 2. Transition and primary resources at different cut-off grades (Reported 9th February 2023)

The Company has designed a drilling programme with a target of increasing the current resource to greater than 100,000 tonnes of contained copper which includes drilling to test mineralisation below 130 m depth and also shallower mineralisation on the periphery of the resource.

However, prior to embarking on this drilling campaign, in May 2024 the Company drilled a metallurgical test hole (D15). This was a diamond hole drilled with large diameter core commencing with PQ size and then reducing to HQ core to increase the recovered core sample. It was drilled to 300 metres depth and was drilled parallel and below TRC098 which had previously intersected 77 m @ 0.62% Cu although D15 was drilled beyond the edge of the existing resource. The purpose of the hole was to:

  • Test mineralisation trends including continuity downdip from TRC098 and other nearby holes and beyond the existing resource.
  • Check assay grade variability between chips from the earlier RC drilling and diamond drill core.
  • Inspect geological features such as lithologies, bedding trends and structural logging.
  • Provide an adequately sized sample for flotation and recovery testwork to produce a saleable copper concentrate.
  • Provide a large bulk sample for testing for Tomra ore sorting

The hole was successfully drilled and completed on 13th May 2024. An outline of the findings is presented below.

Figure 3. Drilling of DD15 in May 2024.


Click here for the full ASX Release

This article includes content from Tartana Minerals Limited, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.

TAT:AU
Tartana Minerals

Tartana Minerals Investor Kit

  • Corporate info
  • Insights
  • Growth strategies
  • Upcoming projects

GET YOUR FREE INVESTOR KIT

The Conversation (0)
  Tartana Minerals Limited (ASX:TAT)

Tartana Minerals


Keep reading...Show less

Copper, gold, silver and zinc, producer, explorer and developer in Far North Queensland, Australia

Tartana executes HOA to process Copper Ore in Mungana Plant

Tartana executes HOA to process Copper Ore in Mungana Plant

Tartana Minerals (TAT:AU) has announced Tartana executes HOA to process Copper Ore in Mungana Plant

Download the PDF here.

Tartana to explore accessing Mungana Processing Plant

Tartana to explore accessing Mungana Processing Plant

Tartana Minerals (TAT:AU) has announced Tartana to explore accessing Mungana Processing Plant

Download the PDF here.

Cassiar highway, BC, Canada

Navigating BC Mine Permitting

BC has long been a land of promise for gold seekers.

From the historic gold rushes of the 1800s to today’s high-tech exploration campaigns, the province remains one of the most geologically prospective regions in the world. But beneath its mineral-rich surface lies a regulatory landscape as formidable as its mountain ranges.

For junior mining companies — the entrepreneurial heart of the industry — the real test isn’t just finding gold. It’s getting permission to mine it.

Keep reading...Show less
Gold bars with the Mali flag overlay, featuring green, yellow, and red vertical stripes.

Mali Shuts Barrick Gold's Office in Bamako Amid Ongoing Tax Dispute

Mali's government has shut down Barrick Gold’s (TSX:ABX,NYSE:GOLD) office in the capital, Bamako, as part of an escalating dispute over alleged non-payment of taxes, sources familiar with the matter confirmed to Reuters.

The closure marks a significant development in a long-running standoff between the Canadian mining giant and the West African country, which has seen tensions rise over mining revenues and the implementation of Mali's new mining code.

The latest development, which saw staff in Bamako locked out of the company’s offices, is linked to a separate tax dispute that has been brewing since 2023.

Barrick signed an agreement with Mali's government in February to end the nearly two-year-long conflict. This agreement, however, still awaits official approval from Malian authorities.

Keep reading...Show less

Barrick Calls for Responsible Leadership as Mali Situation Escalates

All amounts expressed in US dollars

Barrick Gold Corporation (NYSE:GOLD)(TSX:ABX) confirms that it has continued to engage in good faith with the Government of Mali to finalise an agreement that was fully negotiated and accepted by the Ministry of Finance in February 2025.

News Provided by GlobeNewswire via QuoteMedia

Keep reading...Show less
Iceni Gold Limited

RC Drill Results Continue to Expand Guyer Footprint

Iceni Gold Limited (ASX: ICL) (Iceni or the Company) is pleased to provide an update on first drill results from the Guyer Prospect, which is subject to a Farm-in Agreement with Gold Road Resources (ASX:GOR). Guyer is within the Company’s flagship 14 Mile Well Gold Project, located between Leonora and Laverton.
Keep reading...Show less
Ole Hansen, investment graphics.

Ole Hansen: Gold, Silver, Copper, Oil — Prices, Supply, Demand in 2025

Ole Hansen, head of commodity strategy at Saxo Bank, shares his outlook for the gold, silver, copper and oil sectors as tariff uncertainty continues.

"If you're actively trading these markets, keep your position to a level that reflects the new and higher volatility," he said, urging investors to be mindful amid the current turmoil.

Keep reading...Show less
Three gold bars on price chart with magnifying glass.

What Was the Highest Price for Gold?

Gold has long been considered a store of wealth, and the price of gold often makes its biggest gains during turbulent times as investors look for cover in this safe-haven asset.

The 21st century has so far been heavily marked by episodes of economic and sociopolitical upheaval. Uncertainty has pushed the precious metal to record highs as market participants seek its perceived security. And each time the gold price rises, there are calls for even higher record-breaking levels.

Gold market gurus from Lynette Zang to Chris Blasi to Jordan Roy-Byrne have shared eye-popping predictions on the gold price that would intrigue any investor — gold bug or not.

Keep reading...Show less
Tartana Minerals

Tartana Minerals Investor Kit

  • Corporate info
  • Insights
  • Growth strategies
  • Upcoming projects

GET YOUR FREE INVESTOR KIT

Latest Press Releases

Related News

×