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Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
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<blockquote data-quote="user 4386" data-source="post: 484846" data-attributes="member: 4386"><p>SG too high (if accurate), hardness slightly too low, conchoidal fracture a bit strong for tourmaline (which otherwise would definitely have been my guess - be sure re SG as it is the main one excluding tourmaline completely). Appears to show crystal faces, which excludes obsidian.</p><p></p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/4386/1555735327_unknown.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>A clearer, more in-focus photo of the above might help. One completely blurred crystal? looks vaguely trigonal (as in tourmaline)</p><p></p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/4386/1555735621_trigonal.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="user 4386, post: 484846, member: 4386"] SG too high (if accurate), hardness slightly too low, conchoidal fracture a bit strong for tourmaline (which otherwise would definitely have been my guess - be sure re SG as it is the main one excluding tourmaline completely). Appears to show crystal faces, which excludes obsidian. [img]https://www.prospectingaustralia.com/forum/img/member-images/4386/1555735327_unknown.jpg[/img] A clearer, more in-focus photo of the above might help. One completely blurred crystal? looks vaguely trigonal (as in tourmaline) [img]https://www.prospectingaustralia.com/forum/img/member-images/4386/1555735621_trigonal.jpg[/img] [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
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