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Metamorphic processes
https://australian.museum/learn/minerals/shaping-earth/metamorphic-processes/Most minerals are only stable at particular temperatures and pressures, so changes in these result in the formation of new minerals.
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Radioactive dating
https://australian.museum/learn/minerals/shaping-earth/radioactive-dating/Radioactive dating is a method of dating rocks and minerals using radioactive isotopes. This method is useful for igneous and metamorphic rocks, which cannot be dated by the stratigraphic correlation method used for sedimentary rocks.
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Identifying gemstones
https://australian.museum/learn/minerals/gemstones/identifying-gemstones/Cut gemstones possess all the physical properties of the mineral from which they are cut, although the crystal shape is no longer evident.
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Cutting gemstones
https://australian.museum/learn/minerals/gemstones/cutting-gemstones/Faceted gemstones reveal the inherent qualities of a mineral, such as colour (or lack of it), clarity, fire and brilliance, which might otherwise remain hidden.
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Geological origin of gemstones
https://australian.museum/learn/minerals/gemstones/geological-origin-of-gemstones/Gemstones are formed below the Earth's surface and can sometimes show traces of other minerals, called inclusions.
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Valuing gemstones
https://australian.museum/learn/minerals/gemstones/valuing-gemstones/Gemstones are valuable because they are a rare and desirable commodity. They also represent time and labour spent on cutting and presentation.
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Geological ore deposits
https://australian.museum/learn/minerals/geological-deposits/geological-ore-deposits/Geological ore deposits are of many different types and occur in all geological environments.
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Building Materials
https://australian.museum/learn/minerals/geological-deposits/building-materials/Perhaps the most important geological deposits are those that we use for building purposes. These come from all geological environments.
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History of the Minerals Department
https://australian.museum/about/history/people/history-of-the-minerals-department/The mineral collection is one of the oldest and largest collections in the country, housing many examples of early Australian mining.
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A Rock from Cape Horn
https://australian.museum/learn/collections/natural-science/mineralogy/mineralogy-collection-a-rock-from-cape-horn/On 22 May 1826, two ships sailed from Plymouth, England on a major expedition to chart the southern coast of South America.
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Discover more
Barka: The Forgotten River
Special exhibition
Now on until 23 July 2023![]()
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Bilas: Body Adornment from Papua New Guinea
Featuring photographs by Wylda Bayrón.
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School programs and excursions
Virtual excursions
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Burra
Permanent education space
Open daily![]()
