northwest Copper nugget?
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australian electronic gold prospecting forum.com  |  Common interest forum.  |  General chat and discussion forum (Moderator: bugwhiskers)  |  Topic: Copper nugget? 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: Copper nugget?  (Read 131 times)
RichterScale
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« on: Wednesday March 13 2019 19:34:25 AEDT PM »

Was detecting a dry creek bed in Gippsland today and found a 4.4oz nugget along with another 13 grams of smaller pieces from the same hole (500mm) Something doesn't feel right though. At first, I thought the smaller bits were rusted steel as they were black. On closer inspection, they looked like they came straight out of a reef with wirey jagged pieces protruding.

The 4.4 oz piece is really ugly and the surface is smooth but the back is rough with bits of stone/quartz stuck in it. its dark brown in colour. There are all sorts of weird patterns and shapes on the back also. Where a couple of the rough bits broke off on the back a copper colour is present, not gold. Although in other spots where it looks like it got roughed up when digging it out a gold colour seems to be present. As the other smaller pieces came out of the same hole and look similar I put these in some hydrochloric acid to see what would happen. In places, the gold colour is visible however they still seem to have a copper colour coating them (only been in acid 1 hour so far) I'm still trying to work out if its a lump of gold or something else. I've dug up really rough wirey reef gold before and this looks similar but the copper colour has got me questioning whether this is gold or something else

 
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sd220d Digger
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« Reply #1 on: Wednesday March 13 2019 19:52:12 AEDT PM »

Got any pictures?
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RichterScale
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« Reply #2 on: Wednesday March 13 2019 20:04:02 AEDT PM »

yes, not sure how to upload pictures to this forum.
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sd220d Digger
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« Reply #3 on: Wednesday March 13 2019 20:33:40 AEDT PM »

When you reply there are a bunch of icons and pick the one that looks like a picture.
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RichterScale
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« Reply #4 on: Wednesday March 13 2019 20:40:48 AEDT PM »

I saw that but do you need to host the pictures somewhere and paste the link or can you upload pictures directly to the forum
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Northeast
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« Reply #5 on: Wednesday March 13 2019 20:44:20 AEDT PM »

Testing if you can upload straight up. If there is a picture of some small nuggies, then you can   smile


* gold 3.jpg (265.37 KB, 909x952 - viewed 47 times.)
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RichterScale
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« Reply #6 on: Wednesday March 13 2019 20:52:46 AEDT PM »

how did you get the photo to load up to the forum Northeast. Anyway 3rd time lucky. Sorry guys ill just have to post the links to the photos, cant seem to get anything else to work

  
  
  


* IMG-1321.jpg (185.4 KB, 640x853 - viewed 45 times.)

* IMG-1324.jpg (187.07 KB, 640x853 - viewed 42 times.)

* IMG-1330.jpg (124.79 KB, 640x853 - viewed 44 times.)
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sd220d Digger
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« Reply #7 on: Wednesday March 13 2019 21:36:45 AEDT PM »

  
I saw that but do you need to host the pictures somewhere and paste the link or can you upload pictures directly to the forum


Maybe Doug can help
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Northeast
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« Reply #8 on: Wednesday March 13 2019 22:13:56 AEDT PM »

Sorry Richter, been watching TV. 

When you click on Reply you then click on Additional Options  and then click on Browse

Choose the pic you want from the file location on your computer (you have to have saved the photo on your PC somewhere) (or from in your pics on a mobile phone/tablet). 

Then click submit. 

Hope that helps.

Had a look at your linked pics though.  1st and 3rd are very weird looking.  The 2nd pic of the multiple nuggets at a distance certainly look like gold but maybe with a lot of something else mixed in?   I did see that there was a detecting show coming up in Bendigo soon and there was going to be stand with an XRF reader (or whatever they are called).  Would be interesting to know what they are.  I'm assuming they are heavy like gold?
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RichterScale
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« Reply #9 on: Wednesday March 13 2019 22:14:19 AEDT PM »

Not sure how one of the pictures appeared but the others didn't. The one that is showing is the ugly back of the nugget. update: It appears that the smaller pieces are slowly showing more gold as they lie in acid. Hopefully, the bigger bit found in the same hole is gold also. What do people think? Throw it in acid to clean it up or leave it in its natural state.
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RichterScale
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« Reply #10 on: Wednesday March 13 2019 22:24:07 AEDT PM »

The second picture is the small nuggets. It appears they have a coating somewhat like copper on them. It appears the coating is slowly dissolving in the acid. Weird nugget - I agree, nearly threw it back in the hole it was that ugly. The front is water/gravel worn (pic 3) The back of the nugget (pic 1) seems to have the appearance of material (gold?) that has formed around other materials that have now gone, leaving grooves and indentations. Other rocks seem to still be attached. One thought I had was that it was a lump of brass/copper that had melted around gravels. I few bits have broken off the back, I have put those in acid. Hopefully, in a day or two ill see what the ugly mass is made of.
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RichterScale
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« Reply #11 on: Thursday March 14 2019 13:54:17 AEDT PM »

Comparing the colour of the smaller gold pieces to real gold it appears this may be brass. Although a few of the pieces have a blend of brass and copper colours in them. Im now guessing this is just something that has melted in a bushfire. The thin wirey bits on lots of the small bits had me confused. Oh well, I've found heaps of melted lead before but nothing that was as convincing as this.
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australian electronic gold prospecting forum.com  |  Common interest forum.  |  General chat and discussion forum (Moderator: bugwhiskers)  |  Topic: Copper nugget? « previous next »
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