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Identifying gemstones
https://australian.museum/learn/minerals/gemstones/identifying-gemstones/Cut gemstones possess all the physical properties of the mineral from which they are cut, although the crystal shape is no longer evident.
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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 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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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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Fluorite
https://australian.museum/learn/minerals/gemstones/fluorite/Facts about Fluorite.
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Emerald
https://australian.museum/learn/minerals/gemstones/emerald/Facts about Emerald.
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Opal
https://australian.museum/learn/minerals/gemstones/opal/Facts about Opal.
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Sapphire and Ruby
https://australian.museum/learn/minerals/gemstones/sapphire-and-ruby/Facts about Sapphire and Ruby.
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Mineral properties
https://australian.museum/learn/minerals/properties/Find out about the properties of minerals.
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The 2021 Australian Geographic Nature Photographer of the Year
Opening Saturday 30 October
