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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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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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The Solar System
https://australian.museum/learn/minerals/shaping-earth/the-solar-system/The Solar System is dominated by the Sun and the planets that orbit around it.
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Mineral groups
https://australian.museum/learn/minerals/what-are-minerals/mineral-groups/Minerals can be classified into distinct groups based upon similar atomic structure and/or chemical composition.
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Jenolan Caves Minerals
https://australian.museum/learn/minerals/shaping-earth/mineralogy-collection-jenolan-caves-minerals/The Jenolan Caves are one of the premier tourist attractions of New South Wales. Nine caves are regularly shown to visitors, but several hundred of various sizes are known from the area.
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New Information from Old Specimens
https://australian.museum/learn/collections/natural-science/mineralogy/mineralogy-collection-new-information-from-old-specimens/In many ways the future and relevance of museum collections often depend on their past. Some specimens remain in the collections for a long time, sometimes over 100 years before they prove vital for current research projects.
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Lavas
https://australian.museum/learn/minerals/shaping-earth/lavas/One of the products of volcanic eruptions is lava. Lavas vary widely in composition depending upon their original source magma.
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Concretions, Thunder Eggs and Geodes
https://australian.museum/learn/minerals/shaping-earth/concretions-thunder-eggs-and-geodes/Concretions are compact, often rounded, accumulations of mineral matter that form inside sedimentary rocks such as shale and sandstone or in soil.
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Limestone caves
https://australian.museum/learn/minerals/shaping-earth/limestone-caves/Caves form in limestone (calcium carbonate), and occasionally in dolomite (calcium magnesium carbonate), when water containing dissolved carbon dioxide (carbonic acid) seeps into rock crevices and joints.
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Discover more
2025 Australian Geographic Nature Photographer of the Year
Special exhibition
Opens 25 October -
Find out more
Burra
Permanent kids learning space
10am - 4.30pm![]()
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Minerals
Permanent exhibition
Open daily![]()
