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Gold Prospecting
Hard Rock Gold Prospecting
Help with rock identification, please?
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<blockquote data-quote="benignburden" data-source="post: 200226" data-attributes="member: 3737"><p>Hi, </p><p></p><p>Just winging it off the pics and your post it looks like the protolith was initially made up of quartz and clay that was exposed to intense heat, almost certainly hydrothermal activity. It appears to have gone through neocrystallisation changing original mineral constitution and structure through chemical reaction due to high heat where the atoms from the original crystal structure dissolve and migrate/diffuse and reform in other atomic arrangements usually at grain boundries, often changing the molecular make up of the mineral and generally the mineral itself. </p><p></p><p>So original rock compostion me thinks: quartz and clay (could very possibly be wrong)</p><p>metamorphosed rock: Have no idea . . . Sorry</p><p></p><p>Cheers,</p><p>Burden</p></blockquote><p></p>
[QUOTE="benignburden, post: 200226, member: 3737"] Hi, Just winging it off the pics and your post it looks like the protolith was initially made up of quartz and clay that was exposed to intense heat, almost certainly hydrothermal activity. It appears to have gone through neocrystallisation changing original mineral constitution and structure through chemical reaction due to high heat where the atoms from the original crystal structure dissolve and migrate/diffuse and reform in other atomic arrangements usually at grain boundries, often changing the molecular make up of the mineral and generally the mineral itself. So original rock compostion me thinks: quartz and clay (could very possibly be wrong) metamorphosed rock: Have no idea . . . Sorry Cheers, Burden [/QUOTE]
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Gold Prospecting
Hard Rock Gold Prospecting
Help with rock identification, please?
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