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Gold Prospecting
Metal Detecting for Gold
First interesting finds! and Question re identification
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<blockquote data-quote="user 4386" data-source="post: 591326" data-attributes="member: 4386"><p>The hardness is easily tested - lead can be readily scratched by a gold coin, unlike other metals. Very few geologists carry Moh testing kits - you only need your fingernail, gold coin, steel needle and a bit of quartz for most things. Lead has a hardness of 1.5, so even gypsum and calcite will scratch it. A fingernail is 2.5 so even it can scratch lead. If it is slightly alloyed with something in a synthetic alloy it might be a bit harder, but still very soft compared to other metals.</p><p></p><p>The arm-waving starts once some properties are known <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick Out Tongue :p" loading="lazy" data-shortname=":p" />layful:</p></blockquote><p></p>
[QUOTE="user 4386, post: 591326, member: 4386"] The hardness is easily tested - lead can be readily scratched by a gold coin, unlike other metals. Very few geologists carry Moh testing kits - you only need your fingernail, gold coin, steel needle and a bit of quartz for most things. Lead has a hardness of 1.5, so even gypsum and calcite will scratch it. A fingernail is 2.5 so even it can scratch lead. If it is slightly alloyed with something in a synthetic alloy it might be a bit harder, but still very soft compared to other metals. The arm-waving starts once some properties are known :playful: [/QUOTE]
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Gold Prospecting
Metal Detecting for Gold
First interesting finds! and Question re identification
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