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Manganite
https://australian.museum/learn/minerals/mineral-factsheets/manganite/Germany has produced some of the largest and best manganite (manganese hydroxide) crystals in the world, as shown by this superb example.
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Celestine
https://australian.museum/learn/minerals/mineral-factsheets/celestine/This large hollow geode lined with sky blue celestine crystals was purchased from a Victorian mineral dealer.
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Cuprite on Calcite
https://australian.museum/learn/minerals/mineral-factsheets/Cuprite-on-calcite/Emke Mine in Namibia has produced some very large cuprite (copper oxide) crystals, with some being of gem quality and able to be faceted into rare dark-red gemstones.
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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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Fluorite
https://australian.museum/learn/minerals/gemstones/fluorite/Facts about Fluorite.
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Cerussite
https://australian.museum/learn/minerals/mineral-factsheets/cerussite/This statuesque group of cerussite crystals has been an icon of our mineral collection for over 90 years.
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Smithsonite on Cerussite
https://australian.museum/learn/minerals/mineral-factsheets/smithsonite-on-cerussite/Smithsonite is usually white or cream, yellow or blue, but occasionally a trace of copper can give it a pleasing apple green colour, like this one.
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Malachite in Gossan
https://australian.museum/learn/minerals/mineral-factsheets/malachite-in-gossan/This is a very large and impressive malachite (copper hydroxy-carbonate) with rounded groups of green, radiating fibrous crystals of velvety texture, that was extracted from an open cavity in the mine.
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Pyrosmalite-(Mn)
https://australian.museum/learn/minerals/mineral-factsheets/pyrosmalite/Pyrosmalite-(Mn) is a very rare mineral, even rarer in large crystals.
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Machu Picchu and the Golden Empires of Peru
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Tails from the Coasts
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10 May – 7 September 2025![]()
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Wild Planet
Permanent exhibition
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Minerals
Permanent exhibition
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