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whats a hot rock and why does it sound off a signal
whats a hot rock
- Thread starter yellowmellow
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Help Support Prospecting Australia:
its the one you take out of the oven & serve up to guests for entre, when you're trying to cook the perfect salmon.
Anolphart
Zol Straub
Actually I think that is a damn good question. We just accept that it's an annoying rock that wastes our time, but here is what the Google detectorist says:
A hot rock can loosely be defined as: any rock or stone not containing a valuable mineral (gold, silver, or copper) which generates an audible signal response on a metal detector. ... These minerals are predominately the iron oxides: magnetite, hematite, limonite, maghemite and lepidocrocite.
A hot rock can loosely be defined as: any rock or stone not containing a valuable mineral (gold, silver, or copper) which generates an audible signal response on a metal detector. ... These minerals are predominately the iron oxides: magnetite, hematite, limonite, maghemite and lepidocrocite.
1 more Olphart .... makesmegritmyteethsotite :awful:
that's a good point Nug.
If you have the faintest suspicion it may have a spec in it, take it home/back to camp & bash it, especially if it also has quartz in it :goldnugget:ickshovel: :goldpan:
If you have the faintest suspicion it may have a spec in it, take it home/back to camp & bash it, especially if it also has quartz in it :goldnugget:
ickshovel: :goldpan:
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After a while you can typically tell quite easily by the way it'll look like all the other hot rocks and also the way it sounds off on the detector. Some do sound quite similar to gold, but typically they'll have a slightly different tone and also it'll sound the same no matter what side of the rock you pass the coil over. To be more certain though (apart from crushing/panning) can try and split it with the pick axe and pass the coil over the different bits... if they all sound off about the same (proportionate to the size), it's more than likely just another hot rock. Unfortunately some of the creeks I go to are just full of them, makes it very difficult to detect for gold.Nug said:
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Hot rock...
Place a very nice steak on top of the Hot rock and cook steak to your likening... Enjoy
Goody
Place a very nice steak on top of the Hot rock and cook steak to your likening... Enjoy
Goody
Meteorites are actually very cold while travelling space, and almost certainly aren't fire balls even when they hit the Earth. "Many astronomers believe that small meteorites should be barely warm, or even cool when they hit the ground". Larger ones will be quite cold, as only the outer crust has time to heat up as it passes through the atmosphere, and that occurs in seconds. Not like in the moviessilver said:
Anolphart said:
You missed the main one! Leverite. :lol:
navieko said:
Excellent description!
Moneybox
Philip & Sandra Box
[video=480,360]https://youtu.be/G6lu3QfMhcE[/video]
I think we just have to make a judgement call on each rock as we find them. I'm sure we throw some gold away thinking it was a hotrock. When I was making this video and looking over some old footage I was throwing away some rocks that set the detector off but never attracted the magnet. Did they just have gold???
I think we just have to make a judgement call on each rock as we find them. I'm sure we throw some gold away thinking it was a hotrock. When I was making this video and looking over some old footage I was throwing away some rocks that set the detector off but never attracted the magnet. Did they just have gold???
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Another thread here:
https://www.prospectingaustralia.com/forum/viewtopic.php?id=26330
https://www.prospectingaustralia.com/forum/viewtopic.php?id=26330
