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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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Gemstone accolades and museum outreach
https://australian.museum/learn/news/blog/gemstone-accolades-and-museum-outreach/Gemstones flash brightly for Australian Museum Geoscience activities at present.
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Mineral properties
https://australian.museum/learn/minerals/properties/Minerals can be identified using a number of properties. These include physical and chemical properties such as hardness, density, cleavage and colour, crystallography, electrical conductivity, magnetism, radioactivity and fluorescence.
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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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Fluorite
https://australian.museum/learn/minerals/gemstones/fluorite/Facts about Fluorite.
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Labradorite
https://australian.museum/learn/minerals/gemstones/labradorite/Facts about Labradorite
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Zircon
https://australian.museum/learn/minerals/gemstones/zircon/Facts about Zircon
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Quartz
https://australian.museum/learn/minerals/gemstones/quartz/Quartz is the most common mineral, present in a wide range of rocks and gemstones.
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Diamond
https://australian.museum/learn/minerals/gemstones/diamond/Facts about Diamond
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