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Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
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<blockquote data-quote="Hawkear" data-source="post: 641823" data-attributes="member: 4728"><p>Yes that is a very light mineral. Have been pouring through my Pellants Rocks and Minerals but really at a dead end. </p><p>is there an online app that we can just plug in what we know already to narrow the ID?</p><p>So far we have have</p><p>Hardness Less than 5.5 - maybe needs a bottom line there. </p><p>SG. 2.75 - 2.81</p><p>Colour. Black</p><p>Streak Blue (Light blue or dark blue?)</p><p>Fluorescence. Weak blue</p><p>Given it lightness could be a carbonate based mineral so it’s reaction to a drop of dilute hydrochloric acid might also give a clue.</p><p>Of course most States offer mineral identification services but it would be a good learning experience to be able to make a best guess before getting to that stage.</p></blockquote><p></p>
[QUOTE="Hawkear, post: 641823, member: 4728"] Yes that is a very light mineral. Have been pouring through my Pellants Rocks and Minerals but really at a dead end. is there an online app that we can just plug in what we know already to narrow the ID? So far we have have Hardness Less than 5.5 - maybe needs a bottom line there. SG. 2.75 - 2.81 Colour. Black Streak Blue (Light blue or dark blue?) Fluorescence. Weak blue Given it lightness could be a carbonate based mineral so it’s reaction to a drop of dilute hydrochloric acid might also give a clue. Of course most States offer mineral identification services but it would be a good learning experience to be able to make a best guess before getting to that stage. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
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