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Gemstones, Minerals & Fossils
Gemstones and Minerals
Gemstone and mineral geology applied to prospecting course
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<blockquote data-quote="Lefty" data-source="post: 293851" data-attributes="member: 2976"><p>An excellent idea! I have a bunch of books on where to find gemstones in Australia but none of them have very much to say about one of the most fundamental aspects of prospecting and fossicking - understanding <strong>why</strong> things are found where they are found. How did they form, disperse and how to recognise what potential an area's geology might hold.</p><p></p><p>I remember sitting beside the campfire as a kid with dad, uncle and a bunch of miners at Rubyvale and asking <em>why</em> there were sapphires here but not elsewhere - nobody present really knew. All they could say was "they're volcanic". Ok, so how do I recognise volcanically-derived ground? Are all volcanics the same? Do they all produce sapphires and zircons? Are there different kinds of volcanoes producing different gemstones? Did all gemstones come from volcanoes? Nobody could give me any really good answers.</p><p></p><p>Anybody can rock up at a fossicking area and start digging but an understanding of some very basic geology with a slant towards gemstones would be immensely helpful.</p></blockquote><p></p>
[QUOTE="Lefty, post: 293851, member: 2976"] An excellent idea! I have a bunch of books on where to find gemstones in Australia but none of them have very much to say about one of the most fundamental aspects of prospecting and fossicking - understanding [b]why[/b] things are found where they are found. How did they form, disperse and how to recognise what potential an area's geology might hold. I remember sitting beside the campfire as a kid with dad, uncle and a bunch of miners at Rubyvale and asking [i]why[/i] there were sapphires here but not elsewhere - nobody present really knew. All they could say was "they're volcanic". Ok, so how do I recognise volcanically-derived ground? Are all volcanics the same? Do they all produce sapphires and zircons? Are there different kinds of volcanoes producing different gemstones? Did all gemstones come from volcanoes? Nobody could give me any really good answers. Anybody can rock up at a fossicking area and start digging but an understanding of some very basic geology with a slant towards gemstones would be immensely helpful. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
Gemstone and mineral geology applied to prospecting course
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