Lyla Lindsey
Australia is a leading producer of minerals and metals, with mining operations in every state, the Northern Territory, and Christmas Island. The country produces significant amounts of 19 useful minerals, including bauxite, iron ore, lithium, gold, and diamond. While there is a wealth of information on Australia's mineral resources, I could not find specific details on where marble is found. However, it appears that marble is present in the country, as a local farmer in Cowell, South Australia, discovered a 3-4 kg boulder of nephrite jade near an outcrop of white marble in 1965.
| Characteristics | Values |
|---|---|
| Mining locations | New South Wales, Northern Territory, Christmas Island, Queensland, South Australia, Western Australia |
| Number of mines | Over 350 |
| Minerals mined | Bauxite (aluminium ore), iron ore, lithium, gold, lead, diamond, rare earth elements, uranium, zinc, black coal, manganese, antimony, nickel, silver, cobalt, copper, tin, titanium, zirconium, thorium |
| Jade deposits | Tamworth in New South Wales, Cowell in South Australia |
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What You'll Learn
Marble found near jade deposits in Cowell, South Australia
Marble is found near jade deposits in Cowell, South Australia. Cowell is home to the largest nephrite jade deposit in Australia and the world. The deposit was discovered in 1965 by a local farmer, Harry Schiller, who found a 3-4 kg boulder of nephrite near an outcrop of white marble. Since its discovery, the deposit has had several different owners, and the South Australian Government has evaluated and mined the site.
The jade deposit in Cowell is located on the Eyre Peninsula in South Australia. It is the only commercial jade mine in Australia and is exclusively licensed to Cowell Jade Pty Ltd by the South Australian Government. The jade is mined using excavators in open pits, and diamond-tipped core drills are used to expose the jade. The mined jade is then transported by trucks for sawing and grading according to colour and quality.
Cowell jade exhibits a variety of colours and textures, with medium to fine-grained material showing grey to dark green hues, lensing to dense black. The three main varieties marketed are green nephrite, black nephrite, and premium black nephrite. Grades and pricing are determined by density (specific gravity) and colour. The Cowell Jade Province, which contains all the jade sites, has been estimated to have a jade reserve of 80,000 tonnes by the South Australian Mining Department.
The marble outcrops near Cowell are host rocks for the jade deposits. Jade is found within metamorphic rocks, specifically marble of Early to Middle Proterozoic age (2500 - 1000 million years ago). The marble outcrops provide the geological context for the formation and occurrence of jade in the Cowell region. The marble, along with the jade it hosts, was formed approximately 1840 million years ago.
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Mining and mineral deposits in Australia
Mining has long been a significant primary sector industry in Australia and has boosted the nation's economy by providing export income, royalty payments, and employment. Australia has mining activity across all its states and territories, with the industry directly impacting only 0.02% of its land surface. The country ranks among the top 4 in economic resources for 21 primary industrial minerals, more than any other nation.
Historically, mining booms encouraged population growth through immigration, particularly during the gold rushes of the 1850s. Silver and copper were discovered in South Australia in the 1840s, and coal was first exported to India in 1799. Australia was exporting several million tonnes of coal each year by 1901, and Western Australia became the largest iron ore producer in the world in 2014. The country is also a major producer of precious stones, being the largest producer of opal and one of the largest producers of diamond, ruby, sapphire, and jade.
In 2019, Australia was the world's largest producer of iron ore and bauxite, the second-largest of gold, manganese, and lead, the third-largest of zinc, cobalt, and uranium, and the fifth-largest of salt. Other significant mining areas in the country include the Goldfields, Peel and Pilbara regions of Western Australia, the Hunter Valley in New South Wales, the Bowen Basin in Queensland, and Latrobe Valley in Victoria.
Mineral sands are a group of heavy minerals commonly found and mined together from old beach, river, or dune environments. In Australia, titanium, zirconium, and thorium are extracted from mineral sand deposits.
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Earth Sciences Western Australia (ESWA)
ESWA's work is closely linked to the University of Western Australia, which owns and operates the Edward de Courcy Clarke Earth Science Museum. The museum is open to the public on Mondays, Wednesdays, Fridays, and Sunday afternoons. The University of Western Australia is just one of many educational institutions in the country with a focus on geoscience and minerals.
The Australian Museum in Sydney, for example, has a section devoted to geoscience in Australia and houses the Albert Chapman Mineral Collection, which is on permanent display. The New South Wales Department of Primary Industries also provides mineral factsheets relating to commodities found in New South Wales. The Queensland Resources Council hosts Oresome Resources, a website that provides educational resources to support teaching and learning about minerals and energy.
In addition to these educational resources, Australia is a significant producer of minerals and metals. Mining occurs in all states of Australia, the Northern Territory, and Christmas Island. Australia produces 19 useful minerals in substantial amounts, including bauxite (aluminium ore), iron ore, lithium, gold, lead, diamond, rare earth elements, uranium, and zinc. The country also has large mineral sand deposits of ilmenite, zircon, and rutile, from which titanium, zirconium, and thorium are extracted.
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Mining in different states of Australia
Mining has long been a cornerstone of the Australian economy, with the industry contributing around 13.6% of the country's total GDP in 2023. Australia is a world leader in producing and exporting a variety of metals and minerals, ranking among the top 4 in economic resources for 21 primary industrial minerals. The country is the world's largest exporter of coal, iron ore, lead, diamonds, rutile, zinc, and zirconium, and is a top-five producer of gold, iron ore, lead, zinc, and nickel.
Western Australia (WA)
Western Australia is the epicentre of mining in the country, hosting a significant amount of high-grade resources and some of the largest mines in Australia. WA is the world's largest iron ore supplier, with most of the country's iron ore mines located in the Pilbara region. The state also holds approximately 60% of Australia's gold reserves and is a major player in the international mining industry.
Queensland (QLD)
Queensland is a major mining state, with many of Australia's coal mines located in the Bowen Basin. It is the world's largest supplier of silver and hosts some of the highest-grade graphite and rhenium deposits globally. QLD is well-positioned to be a key player in strategic and critical minerals, including those used in new technologies such as electric vehicles.
New South Wales (NSW)
New South Wales is one of the three major mining states in Australia, with a significant number of coal mines located in the state. It is also known for its production of zinc, with over 90 mines operating across the state.
South Australia (SA)
South Australia exports important commodities such as copper, uranium, and zircon. The state holds about 25% of Australia's gold resources and is home to the world's largest single deposit of uranium at BHP's Olympic Dam.
Victoria (VIC)
Victoria has a rich history in Australian mining and is known for producing gold, antimony, and brown coal. The discovery of gold in Ballarat in 1851 sparked a gold rush that made Melbourne one of the richest cities globally.
Tasmania (TAS)
The Renison mine on the west coast of Tasmania is Australia's largest tin deposit.
Northern Territory (NT)
The Northern Territory is rich in world-class minerals, including zinc, copper, lead, tungsten, lithium, vanadium, phosphate, potash, gold, and uranium. NT has a geographical advantage for mineral exports due to its proximity to Asia, with strong relations with major markets in China, Korea, Japan, and India.
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The Albert Chapman Mineral Collection
Albert Chapman's interest in minerals began when he was just 12 years old, collecting rocks on the shores of the Parramatta River in Sydney and becoming fascinated by the sparkling crystals they contained. He soon began collecting specimens, some of which had been used in breakwaters and came from Prospect Quarry in western Sydney. Chapman's father gave him his first specimen, gold in quartz, and he also collected garnet gneiss from South America, which had been dumped as ballast from ships anchored nearby.
Chapman trained as a cabinet-maker and carpenter and established his own building business in Sydney. He was meticulous in his selection of fine mineral specimens and even built some of the cabinets that housed his collection. His reputation as a knowledgeable amateur mineralogist and an authority on Australian minerals earned him entry to great museums worldwide, with whom he traded specimens. Chapman was a founding member of the Mineralogical Society of New South Wales and played a significant role in promoting Australian mineral collecting on the world stage.
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