Astral Resources Records Highest-Ever Gold Assay of 1,146g/t Au at Theia Deeps, Mandilla

Aditi Sarkar

10 November 2026 12:56 PM AEDT

Astral Resources Records Highest-Ever Gold Assay of 1,146g/t Au at Theia Deeps, Mandilla

Image Source: Krish Capital Pty Ltd

You are reading a free article with opinions that may differ from the recommendation given by Kalkine in its paid research reports. Become a Kalkine member today to get access to our research reports, in-depth technical and fundamental research. Learn more

Start Your Free Trial Now!

Astral Resources NL (ASX:AAR) has reported assay results from three diamond drill holes at the Theia Deeps program within its 100%-owned Mandilla Gold Project, located 70 kilometres south of Kalgoorlie in Western Australia, with results including 0.34 metres at 1,146.3g/t gold — disclosed as the highest-ever gold assay recorded at the Theia Deposit — within a broader intersection of 31 metres at 13.5g/t gold from 288 metres depth.

Key Points

Assay results received for three diamond drill holes — AMRCD468A, AMRCD514 and AMRCD515 — totalling 1,796.5 metres drilled at the Theia Deeps program.
AMRCD468A returned 31m at 13.5g/t Au from 288m, including 0.34m at 1,146.3g/t Au from 305.57m, described as the highest-ever gold assay at Theia.
AMRCD515 returned 40m at 3.30g/t Au from 332m and a significant extension of 111m at 1.12g/t Au from 424m below the base of the April 2026 MRE open pit shell.
Assay results remain pending for AMRCD516 and AMRCD575, while a further drill hole, AMRCD615, is currently being drilled.
The Theia Deeps program now encompasses a planned 25 holes for 13,400 metres, with four additional holes added to achieve 60m x 60m drill density.

AMRCD468A and AMRCD514 Drill Results

Drill hole AMRCD468A delivered what the company disclosed as the highest-ever gold assay result returned at the Theia Deposit, recording 0.34 metres at 1,146.3g/t gold from 305.57 metres, situated within a broader zone of 31 metres at 13.5g/t gold from 288 metres. The hole also returned 1.97 metres at 7.65g/t gold from 359.83 metres. Drill hole AMRCD514 returned multiple intervals including 2 metres at 16.5g/t gold from 434 metres, 2 metres at 16.2g/t gold from 517 metres, and 38 metres at 0.84g/t gold from 572 metres, in addition to 13 metres at 1.41g/t gold from 298 metres.

AMRCD515 In-Fill Hole Intersections at Depth

AMRCD515 was drilled as an in-fill hole and returned 40 metres at 3.30g/t gold from 332 metres, including 0.3 metres at 317.0g/t gold from 337.9 metres, as well as 15 metres at 1.31g/t gold from 384 metres. Both intercepts are located within the current Inferred Mineral Resource. The hole also recorded a 111-metre intersection at 1.12g/t gold from 424 metres, which the company stated sits below the base of the April 2026 Mineral Resource Estimate open pit shell, with high-grade intervals including 1 metre at 15.4g/t gold from 468 metres and 0.3 metres at 23.3g/t gold from 511.3 metres.

Ongoing Theia Deeps Program and Upcoming Activity

The Theia Deeps diamond drill program, now planned for 25 holes totalling 13,400 metres, continues with assay results pending for holes AMRCD516 and AMRCD575, while AMRCD615 is currently being drilled. The program's focus has shifted to in-filling within the main gold mineralisation ore shoot to a 60-metre by 60-metre drill spacing, intended to support potential declaration of Inferred Mineral Resources at depth as part of an upcoming Theia Mineral Resource Estimate update. According to the filing, a 55-hole, 10,000-metre reverse circulation program at the Spiders Deposit at Spargoville is scheduled to commence in the March 2027 quarter, and the diamond drill rig is to be moved to Kamperman for a six-hole program in early December.

Download Free Report – Explore 3 Stock Ideas & Industry Insights

Unlock 3 stock ideas and key industry insights in our free report. This information is general in nature and does not consider your personal objectives, financial situation, or needs. It is not financial advice.

All investments involve risk—consider independent advice before making any investment decisions.

View 3 Research Reports

Disclaimer:

This article (“Article”) has been prepared by Kalkine Pty Limited (ABN 34 154 808 312) (Australian financial services licence number 425376) (“Kalkine”) and its related bodies corporate who are authorised to provide general financial product advice. Kalkine.com.au and its associated pages are published by Kalkine.

Any information/advice provided in this article is general in nature and does not take into account your objectives, financial situation or needs. You should therefore consider whether the information is appropriate for your objectives, financial situation and needs before acting upon it.

There may be a Product Disclosure Statement, Information Memorandum or other offer document (“Offer Document”) for the securities or other financial products referred to in Kalkine articles. You should obtain a copy of the Offer Document and consider it before making any decision about whether to acquire the security or financial product.

Kalkine strongly recommends that you seek advice from a financial adviser, stockbroker or other professional (including taxation and legal advice) before acting on any advice/information in this Article or on the Kalkine website. Not all investments are appropriate for all people.

The information in this Article and on Kalkine website has been prepared from a wide variety of sources, which Kalkine, to the best of its knowledge and belief, considers accurate. Kalkine has made every effort to ensure the reliability of the information contained in its articles (including this Article), newsletters and websites. All information represents our views at the date of publication and may change without notice.

The information in this Article does not constitute an offer to sell securities or other financial products or a solicitation of an offer to buy securities or other financial products.

Kalkine does not issue, sell or deal in any financial products.

This Article may contain information on past performance of particular investments. Please note past performance is neither an indicator nor a guarantee of future performance.

To the extent permitted by law, and excluding any dishonesty or gross negligence by Kalkine, Kalkine disclaims and excludes all liability for any direct, indirect, implied, punitive, special, incidental or other consequential loss or damage arising from the use of or reliance on this Article, the Kalkine website and any information published on the Kalkine website without any warranties or representations by Kalkine to you. To the extent the law prohibits or limits this exclusion, Kalkine limits its liability to the resupply of services.

Please also read our Terms & Conditions and Financial Services Guide for further information.

Employees and/or associates of Kalkine and its related entities may hold interests in the securities or other financial products covered in this Article or on the Kalkine website. Any such employees and associates are required to comply with certain safeguards, procedures and disclosures as required by law.

Some of the images/music that may be used in the Article are copyright to their respective owner(s). Kalkine does not claim ownership of any of the pictures displayed/music used in the Article unless stated otherwise. The images/music that may be used in the Article are taken from various sources on the internet, including paid subscriptions or are believed to be in public domain. We have used reasonable efforts to accredit the source wherever it was indicated or was found to be necessary.

Kalkine Media Pty Ltd, an affiliate of Kalkine Pty Ltd, may have received, or be entitled to receive, financial consideration in connection with providing information about certain entity(s) covered on its website.