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Identity Helpblack rock with gold fleck rings...
4th Mar 2011 22:19 UTCminnie
5th Mar 2011 02:21 UTCRonald John Gyllenhammer Expert
The image is very poor. You should post an image that is well focused, with a better image an ID for this may be possible.
Ron
5th Mar 2011 02:39 UTCMatt Neuzil Expert
5th Mar 2011 04:59 UTCPaul Brandes 🌟 Manager
With that said, being that your specimen is from Lake Superior almost leads me to believe your "gold flecks" are one of the micas, more than likely phlogopite. As far as what rock it is in, we'll need a better photo for that....
5th Mar 2011 16:32 UTCminnie
26th Jun 2012 18:04 UTCanthony weatherbee
26th Jun 2012 18:50 UTCDon Saathoff Expert
I am an assayer and I see plenty of black sand come into my lab....Some will have values but most does not. The ONLY reason black sand is ever associated wiith gold is that the darker minerals in any deposit are usually the denser minerals - much closer in density to gold than the lighter colored minerals (although there are exceptions). SO, IF there is any gold upstream then it MIGHT accumulate in the same conditions as the darker minerals and the black sand MIGHT be an indicator of gold BUT it CANNOT be said that where there is black sand there is gold!!
Also, "oreite" is neither a mineral nor rock - I've never heard the term before - anyone else? "Ore" is the term used to describe a substance which can be extracted, AT A PROFIT, from a mine - be it placer, quarry or underground operation. What you described as "oreite" sounds like a poorly consolidated conglomerate of darker mineral grains. If you're making a living from your placer claims then you must consider yourself a very lucky person!!!
Don S.
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Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 23, 2024 16:18:40