logo-loader
viewRed River Resources Limited

Red River Resources adds to golden potential at Hillgrove with Sunlight sampling

Grab sampling from fill at historical underground workings has returned up to 14.4 g/t gold along with silver and antimony.

Red River Resources Limited - Red River Resources adds to golden potential at Hillgrove with Sunlight sampling
Samples from draw point 3 on 1700 Level returned 7.4 g/t gold, 11.4 g/t silver and 1.7% antimony

Red River Resources Limited (ASX:RVR) has boosted the potential of the Hillgrove Gold Project in northern NSW after a sampling program on historic fill at Sunlight Mine returned high-grade gold.

As part of a strategy to reopen Hillgrove and benefit from strong gold market fundamentals, grab sampling was carried out to estimate the grades of fill remaining in the Sunlight workings.

Gold results up to 14.4 g/t

There were 49 kilograms of samples taken from accessible historic draw points on the 1700 and 1650 levels and assaying returned a weighted average grade of 5.7 g/t gold, 1.8 g/t silver and 0.5% antimony across 20 samples.

The maximum gold grade assayed was 14.4 g/t in draw point 13 on the 1700 Level.

Draw Point 3 at the 1700 Level.

175,000-ounce resource

Sunlight vein system has a resource of 680,000 tonnes at 8.0 g/t gold for 175,000 ounces and is open at depth and strike with potential for high-grade gold extensions down plunge and to the southeast.

This is within the overall Hillgrove JORC 2012-compliant resource of 2.8 million tonnes at 5.1 g/t gold and 1.7% antimony for around 460,000 ounces of gold as well as a material JORC 2004-compliant resource.

Potential feed source

There is potential for Sunlight fill to act as a source of feed as Hillgrove transitions from treating the Bakers Creek Waste Stockpile to full restart of underground mining operations.

The Cox’s Lode Decline is connected to the Syndicate Decline and this is only 40 metres from the first designed Sunlight ore drive.

The Sunlight Exploration Decline was recently developed by a previous owner to provide drill platforms at depth to test the down-dip extensions of the Sunlight Vein System.

A long section of the Sunlight workings.

Historic production

Sunlight Mine was operated from 1878 to 1915 and mined an estimated 200,000 tonnes of ore, of which, an estimated 69,800 tonnes of ore grading 35.7 g/t gold was crushed/processed.

It is believed that the majority of ore that was not selected for processing was predominantly used as fill in the mine.

New England Antimony Mines mined and processed around 6,000 tonnes of Sunlight fill in 2000/2001, with an estimated average grade of 3.7 g/t gold.

Next steps

The next step is to take a representative sample of the Sunlight fill to conduct metallurgical characterisation test work.

A review of the historical Sunlight mine plans and sections will be undertaken to seek to estimate the amount of fill that is available for mining without any additional development activities.

Cross-cut 4 at the 1650 Level.

Red River is confident that Hillgrove can play an important role as it adds gold to its existing base metals focus.

More than $200 million has been invested at Hillgrove to date and the project includes fully developed and accessible underground workings plus extensive surface infrastructure and equipment, including a 250,000 tonnes per annum capacity processing plant on active care and maintenance.

This comprises a selective flotation circuit capable of producing antimony-gold and refractory gold concentrates, an antimony leach/electrowinning (EW)/refining and casting plant, a gold cyanide leach circuit and gold room and a pressure oxidation circuit.

Quick facts: Red River Resources Limited

Price: 0.052 AUD

ASX:RVR
Market: ASX
Market Cap: $26.84 m
Follow

Add related topics to MyProactive

Create your account: sign up and get ahead on news and events

NO INVESTMENT ADVICE

The Company is a publisher. You understand and agree that no content published on the Site constitutes a recommendation that any particular security, portfolio of securities, transaction, or investment strategy is...

In exchange for publishing services rendered by the Company on behalf of Red River Resources Limited named herein, including the promotion by the Company of Red River Resources Limited in any Content on the Site, the...

FOR OUR FULL DISCLAIMER CLICK HERE

Watch

Red River Resources developing multiple assets to maximise Thalanga Operations

Red River Resources Ltd (ASX:RVR) managing director Mel Palancian visits Proactive's Perth studio for his debut video; introducing the company and team, as well as discussing the portfolio of producing, developing, and exploration assets. There have been consecutive quarters of record...

on 19/2/19

3 min read