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Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
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<blockquote data-quote="Lefty" data-source="post: 485163" data-attributes="member: 2976"><p>Perhaps they originally were trigonal crystals that have had their profile melted off? Many central QLD sapphires have a distinctly "melted"appearence, with some still showing a crystal shape. Other things I've found from basalt also show a melted appearence when I have seen them/found them in other places with a definate crystal shape (black spinel octahedrons and the like).</p></blockquote><p></p>
[QUOTE="Lefty, post: 485163, member: 2976"] Perhaps they originally were trigonal crystals that have had their profile melted off? Many central QLD sapphires have a distinctly "melted"appearence, with some still showing a crystal shape. Other things I've found from basalt also show a melted appearence when I have seen them/found them in other places with a definate crystal shape (black spinel octahedrons and the like). [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
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