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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: 641804" data-attributes="member: 4728"><p>Hi Phil just checking back with you on that formula. The SG of something is basically it weight divided by its volume ( metric ie grams divided by cc).</p><p>Archimedes principle is that when something is submerged in water it experiences an upward force equal to the weight of the volume of water it displaces so therefore an objects volume is numerically equal to the loss of weight it experiences in water. In other words Volume equals Dry Weight less Wet Weight</p><p>So SG = DW/(DW - WW)</p><p>Assuming that’s what you did 2.75 - 2.81 puts it in a different range of mineral possibilities. Will have to do a bit of researching but being no mineralologist would love others to input some ideas too.</p></blockquote><p></p>
[QUOTE="Hawkear, post: 641804, member: 4728"] Hi Phil just checking back with you on that formula. The SG of something is basically it weight divided by its volume ( metric ie grams divided by cc). Archimedes principle is that when something is submerged in water it experiences an upward force equal to the weight of the volume of water it displaces so therefore an objects volume is numerically equal to the loss of weight it experiences in water. In other words Volume equals Dry Weight less Wet Weight So SG = DW/(DW - WW) Assuming that’s what you did 2.75 - 2.81 puts it in a different range of mineral possibilities. Will have to do a bit of researching but being no mineralologist would love others to input some ideas too. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
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