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Volcanic rocks
https://australian.museum/learn/minerals/shaping-earth/volcanic-rocks/Volcanic rocks are divided into three main types: basaltic, volcaniclastic and pyroclastic.
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Tektites
https://australian.museum/learn/minerals/shaping-earth/tektites/Tektites are small, pebble-like glassy objects of Earth material that have been melted by meteorite impact, splashed up into our atmosphere, and fallen to Earth again under gravity.
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Igneous intrusions
https://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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Gem deposits
https://australian.museum/learn/minerals/gemstones/gem-deposits/Gem deposits are a very important group of mineral deposits, forming in a variety of geological environments and occurring in rocks of all ages from thousands of millions to recent times.
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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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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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The 'Barratta' Meteorite
https://australian.museum/learn/collections/natural-science/mineralogy/mineralogy-collection-the-barratta-meteorite/The story of the 'Barratta meteorite' has a rather uncertain beginning. One version claims that in 1859 a stockman witnessed spectacular light and sound effects at a place where pieces of the meteorite were later found.
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Types of metamorphism
https://australian.museum/learn/minerals/shaping-earth/types-of-metamorphism/There are several different types of metamorphism, including dynamic, contact, regional, and retrogressive metamorphism, that form and shape rocks.
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Water and sedimentary transport
https://australian.museum/learn/minerals/shaping-earth/water-and-sedimentary-processes/Water plays a vital role in most sedimentary processes. Pure water itself has little effect on rocks. It is the dissolved gases in water, particularly carbon dioxide, that cause the chemical decay of minerals and mineral dissolution.
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Where will the next volcano erupt in Australia?
https://australian.museum/learn/news/blog/amri-where-next-volcano-erupt-in-australia/The volcanic future of Australia is revealed.
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The 2021 Australian Geographic Nature Photographer of the Year
Opening Saturday 30 October
