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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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Mundrabilla iron meteorite
https://australian.museum/learn/minerals/mineral-factsheets/mundrabilla-iron-meteorite/Iron meteorites such as Mundrabilla are thought to have been originally part of the metallic core of an asteroid, broken up through collisions in the Asteroid Belt.
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Corundum (sapphire) with diamonds in a platinum ring
https://australian.museum/learn/minerals/mineral-factsheets/corundum-diamonds-platinum-ring/Sapphire (aluminium oxide) can be many colours, but the beautiful blue we see most often is from traces of iron and titanium.
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Rhodochrosite
https://australian.museum/learn/minerals/mineral-factsheets/rhodochrosite/The rich, raspberry colour of this rhodochrosite (manganese carbonate) dazzles with its large transparent and sharp ‘dog-tooth’ crystals up to 4 cm in size.
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Calcite with fluorite
https://australian.museum/learn/minerals/mineral-factsheets/calcite-with-fluorite/Both calcite (calcium carbonate) and fluorite (calcium fluoride) are common species worldwide, but it is the shape, colour, size and combination that make this specimen very special.
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Bournonite with quartz
https://australian.museum/learn/minerals/mineral-factsheets/bournonite-with-quartz/With its large, silvery ‘cog-wheel’ crystals, this is one of the finest bournonites in the world.
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Pyrite
https://australian.museum/learn/minerals/mineral-factsheets/Pyrite/This fine specimen has large striated cubic crystals of pyrite (iron sulphide).
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Linarite
https://australian.museum/learn/minerals/mineral-factsheets/linarite/This is one of the best linarite specimens in existence. Its chemical composition is lead, copper hydroxy- sulphate.
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