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Classification of sedimentary rocks
https://australian.museum/learn/minerals/shaping-earth/classification-of-sedimentary-rocks/Sedimentary rocks are classified according to the predominant grain size present, as well as by their mineral content.
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Metamorphism
https://australian.museum/learn/minerals/shaping-earth/metamorphism/The word metamorphism comes from Greek and means 'change of form'. Metamorphic rocks are pre-existing rocks whose mineral composition and/or texture has been changed by processes within the Earth.
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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 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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Crystal shapes
https://australian.museum/learn/minerals/what-are-minerals/crystal-shapes/Minerals can be identified by the shape of their crystals or crystallography.
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Man made minerals
https://australian.museum/learn/minerals/what-are-minerals/man-made-minerals/Over 200 minerals are identified as either directly or indirectly made by humans.
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Shaping the Earth
https://australian.museum/learn/minerals/shaping-earth/What makes the Earth unique? Where does it fit in the Solar System and, ultimately, the universe? Take a look inside the Earth and find out what it is made from and how it is structured. Look at the processes that shape the Earth.
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Geological deposits and resources
https://australian.museum/learn/minerals/geological-deposits/Geology is an important part of our economy and industry.
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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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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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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![]()
