High-Grade Silver Discovery at Silent Grove – Terra Critical Minerals Builds Its Mole River Potential.
- Noel Ong
- 13 minutes ago
- 6 min read
Announcement
Terra Critical Minerals Limited (ASX: T92) recently confirmed a new high-grade silver discovery at the Silent Grove Prospect within its 100%-owned Mole River Project in New South Wales (Figure 1). This update represents an important step forward in unlocking the polymetallic potential of the Mole Granite district, an area already known for tin, tungsten, and silver-rich systems.
Figure 1: Location of Mole River and the Silent Grove Prospect (source: T92)
Key Highlights - A High-Grade Silver News
Strategic Positioning and Regional Context
Silent Grove is part of Terra’s larger New England exploration portfolio (Figure 2), which includes the Ottery Tin Mine, Castle Rag Silver Deposit, and Glen Eden (NSW’s largest tungsten deposit).
The project area is located along the margins of the Permo-Triassic Mole Granite, a geological unit historically hosting over 350 tin operations, with associated wolfram, bismuth, silver, and molybdenum occurrences.
Mineralisation styles in the district are polymetallic, with silver typically occurring in hydrothermal quartz lodes associated with cassiterite and base-metal sulphides – often as argentite or within Pb-Zn-Ag sulphides.
Figure 2: Regional Map of T92 Project Areas around Mole Granite (source: T92)
High-Grade Silver Discovery
The company reported standout surface sample results (Figure 3), including:
400 g/t Ag, 6.09% Pb, 4% Zn, 0.55% Sn (Sample G94/095)
203 g/t Ag (Sample 070926-2)
165 g/t Ag (Sample 070926-4)
148 g/t Ag and 0.62 g/t Au (Sample 070926-1)
Figure 3: Sample Locations with Satellite Background (source: T92)
These results confirm that Silent Grove hosts silver grades significantly above regional background levels, adding a new high-grade zone just 7.5 km from previously announced Mole River mineralisation (>30 g/t Ag across 24 outcrops, up to 147 g/t Ag with Pb-Zn association.
Table 1 below summarises the key surface rock chip results from Silent Grove, highlighting the standout silver, lead, and tin assays that underpin the potential for a polymetallic system.
Table 1. Surface sample results. (source: T92)
Geology and Exploration Pathway
The geological setting and historic production records suggest that the Mole River district is underexplored for silver-rich polymetallic mineralisation at depth. Terra has commenced:
Reviewing historical datasets (including NSW DIGS data)
Undertaking literature and open-file geophysics reviews
Progressing access approvals and planning a comprehensive exploration program focused on follow-up sampling, infill drilling, and depth extensions to define mineable zones.
In parallel with this announcement, the Company confirmed that Terra Uranium Limited has officially changed its name to Terra Critical Minerals Limited, effective 24 September 2025. The ASX code remains T92.
Samso Concluding Comments
The geological history of the Mole River district has always been an intriguing part of NSW. This update from Terra Critical Minerals should not be surprising for investors. The Mole Granite has a long history of producing tin and tungsten, and silver tends to occur with those systems in structurally controlled lodes.
The upside for Silent Grove is that it is showing a potential footprint of silver mineralisation up to 7.5 km, which means Terra is in the district-scale play. This kind of step-out discovery is often how small explorers add value quickly — by proving that mineralisation is not isolated but part of a broader, repeatable system. The caution here for readers is that this is an area that has a long history of base metals play. While it is promising, one has to pull the brakes on and look at the science first.
I do realise that the market is super hot at the moment, but if you want to be in this game for a few more decades (assuming you are a person whose age allows for decades more of investing :-) on the ASX), you have to remember that these parts of the world are notorious for land access issues. While there are obstacles, there are also opportunities when the stars are aligned.
Figure 4: The T92 share price chart (source: CommSec).
Market acceptance for T92 is very important (Figure 4), and this current narrative is consistent with the broader story. As the market continues to go through its paces, the critical mineral, or what I call the essential mineral story, is not looking to pause. The need for tungsten is now at an all-time high, with real shortages being felt globally.
There are now pricing coming out of China being quoted at over USD $620/mtu, and this is backed by narratives that there is just not enough tungsten, so if T92 gets its stars aligned, this is going to be an interesting ride.
The optimistic view is that early-stage exploration results should be viewed as the first data points in a longer narrative. The next phase — historical data consolidation, structural interpretation, and follow-up drilling — will determine whether these grades persist at depth and across strike. Success here could transform the Mole River project from a collection of prospects into a coherent, potentially mineable resource base or an M&A opportunity.
Ultimately, this is a story that is still in its early chapters. If Terra can demonstrate continuity of presence of economical mineralisation, then Mole River might become an asset that complements its tin and tungsten portfolio and positions the company as a diversified critical minerals explorer. That’s the kind of optionality the market tends to reward when the results continue to back up the thesis.
The Samso Way – Seek the Research
Always look beyond the headline grades. High silver assays are a great start, but the next step is proving continuity and volume. Track how Terra designs its exploration program and whether it prioritises near-surface, high-grade zones or deeper polymetallic shoots.
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