Morning Star and Rose of Denmark Gold Mines

Morning Star is an historic underground gold mine located approximately 120km east of Melbourne in Victoria in the Walhalla to Woods Point gold field.

Morning-Star-map

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The Walhalla to Woods Point gold field is one of the most significant in Australian history with gold production having exceeded 155 tonnes (6 million ounces). In the late 1950’s Morning Star was one of Australia’s largest gold mines having reportedly produced in excess of 800,000 ounces at an average grade of 26.5 g/t over its lifetime. The mine was owned and operated by Gold Mines of Australia (GMA) later merged into Western Mining Corporation (WMC).

Morning Star has, by historical production, displayed potential to deliver low-cost, high grade gold production upon which to found major corporate expansion.

AuStar Gold acquired Morning Star Gold NL (MCO) in 2015, including the Morning Star mine and a large tenement holding with numerous other historic mines. At the time of acquisition, the Morning Star mine had been fully refurbished, including to 10 Level, and with numerous development drives rehabilitated in the upper levels for preliminary bulk sampling and trial mining activities.

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MCO recently constructed a new 80,000 tonne per annum processing plant and associated paste backfill facility. All necessary supporting infrastructure is in place, including a high-speed winder, surface and underground power supplies, site offices and accommodation quarters. The facilities are permitted for tailings placement underground via the paste backfill plant, making Morning Star the only permitted processing plant on the entire gold field.

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Geology

The mine exploits narrow quartz vein deposits hosted in a diorite dyke that is 700m long by 120m wide. The quartz veins are stacked and range up to 2m thick. Historic workings continue underground for 815m below the surface, to 25 Level, and the dyke remains open at depth.

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Morning Star dyke cross section.

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Morning Star dyke long section.

Interactive 3D Model of the Morning Star Dyke and Reefs

Interactive 3D Model of the Rose of Denmark Mine

AuStar Gold is also reviewing the potential for redevelopment of other historic mines on its tenements as well as designing a detailed regional exploration program targeting new dyke systems. MCO’s Rose of Denmark (held 49% under Joint Venture) and Wallaby mines in particular hold substantial potential as additional future production sources.

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Reopening the Rose of Denmark.

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Stoping in Rose of Denmark.

Mineral Processing

Gold from Morning Star is traditionally free milling allowing for production of a high grade concentrate using simple and cost effective gravity separation. It is envisaged that this high grade concentrate will be trucked to a nearby leach plant for toll treating. Morning Star also has a recovery and smelting system in order to recover coarse free gold and pour Dore onsite.

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