Mining Intelligence and News
Australia

Granville Project

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Overview

Mine TypeOpen Pit
StatusCare and Maintenance
Commodities
  • Tin
Mining Method
  • Truck & Shovel / Loader
SnapshotThe Group undertook a strategic review of Granville in September 2019 in order to determine the most economically efficient means of extracting value from the project. Post the strategic review, it was decided to place Granville on care and maintenance until a suitable mine fleet is available and additional equipment is installed at the plant. The Group has assessed and considered it prudent to maintain the provision for impairment against the Ore stockpiles and Tin in tailings recognised in the prior periods.

Aus Tin Mining is maintaining these properties in good standing in a care-and-maintenance state as it fields enquiries from parties potentially willing to acquire the assets.

Owners

SourceSource
CompanyInterestOwnership
Clara Resources Australia Ltd. 100 % Indirect
During the quarter Clara Resources Australia Ltd. executed a binding term sheet for the sale of the company’s wholly owned subsidiary, Ten Star Mining Pty. Ltd (“Ten Star”). Ten Star holds the tenements and other assets, including a rehabilitation bond, relating to the Granville Tin project in Tasmania.

It is anticipated full transaction documents will be completed with an execution date on or before 15 November 2022 and a settlement date of 21 December 2022.

Contractors

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Deposit type

  • Skarn

Summary:

The deposit is hosted in metamorphosed Neo- Proterazoic black carbonaceous shale and calcareous quartzite of the Oonah formation overlaid by Tertiary conglomerate, gravel and grit and subsequent Quaternary stream alluvium and swamp and marsh deposits. Mineralization occurs in the horizon of scarts with a magnetite strip associated with the layers, and tin is found as a supergene at a late stage, a low-temperature formation, that is, post-dating of skarn formation, and also (in the form of silicate) released during serpentinization. The horizon of the mineralized skarn extends approximately 50 meters long (north-south) and 15 meters wide (east-west).

Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

CommodityUnitsLOM
Tin kt 0.8
All production numbers are expressed as concentrate.

Operational metrics

Metrics
Daily milling rate 160 t *
Annual ore mining rate 26,667 t *
Annual milling capacity 40,000 t *
Stripping / waste ratio 4 *
Waste tonnes, LOM 145,000 t *
Ore tonnes mined, LOM 40,000 t *
Total tonnes mined, LOM 185,000 t *
* According to 2016 study.

Production Costs

Commodity production costs have not been reported.

Required Heavy Mobile Equipment

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Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 22, 2022

Aerial view:

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