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Limestone caves
https://dev.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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Structure of volcanoes
https://dev.australian.museum/learn/minerals/shaping-earth/structure-of-volcanoes/Although volcanoes are often seen as being destructive they are also constructive. They add more land to the surface of the Earth and, when weathered, provide us with a nutrient-rich soil for agriculture.
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Igneous intrusions
https://dev.australian.museum/learn/minerals/shaping-earth/igneous-intrusions/Molten magma can invade the Earth's upper layers and then solidify as igneous intrusions.
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Plate Tectonics
https://dev.australian.museum/learn/minerals/shaping-earth/plate-tectonic-processes/Since the 1950s, several discoveries have led to a new understanding of how the Earth works.
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The universe
https://dev.australian.museum/learn/minerals/shaping-earth/the-universe/The universe can be defined as the whole of existing things from the scale of sub-micron to outer space.
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Looking inside the Earth
https://dev.australian.museum/learn/minerals/shaping-earth/looking-inside-the-earth/The internal structure of the Earth consists of three main parts, the crust, mantle and core. The division between the crust and the mantle is called the Moho.
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Metamorphic processes
https://dev.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://dev.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://dev.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://dev.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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Find out more
Tails from the Coasts
Special exhibition
On now![]()
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Burra
Permanent education space
10am - 4.30pm![]()
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RELICS
Special Exhibition
Opens 16 August 2025 -
Discover more
Minerals
Permanent exhibition
Open daily![]()
