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Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
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<blockquote data-quote="Dihusky" data-source="post: 484809" data-attributes="member: 10304"><p>Unsure about Tourmaline, which has a Moh of around 7 - 7.5 and I don't see any of the classic Tourmaline crystal structure, Obsidian is an interesting suggestion though and I gather is not uncommon in the Darling Downs. Obsidian tends to have a lower Moh, but I imagine that depends on the specific mineral content.</p></blockquote><p></p>
[QUOTE="Dihusky, post: 484809, member: 10304"] Unsure about Tourmaline, which has a Moh of around 7 - 7.5 and I don't see any of the classic Tourmaline crystal structure, Obsidian is an interesting suggestion though and I gather is not uncommon in the Darling Downs. Obsidian tends to have a lower Moh, but I imagine that depends on the specific mineral content. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
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