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#1

OzzieAu
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From: Adelaide
Joined: 04 November 2014
Posts: 1,383
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09 April 2021 08:18 pm

I found these copper ‘nuggets’ in Kapunda SA.
I would like to know if they are natural or smelted from copper ore.. is there anyway of telling?
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#2

Rusty_G
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Joined: 27 January 2016
Posts: 249
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09 April 2021 10:35 pm

Very nice specimens there. I know you can get native copper nuggets but can't comment on those. I have a specimen of copper showing on a rock also...but from an area that has mines in the vicinity.

#3

OzzieAu
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From: Adelaide
Joined: 04 November 2014
Posts: 1,383
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09 April 2021 11:53 pm

Kapunda mine was the first commercial copper mine in Australia.
I detected these solid copper slugs in some spoil piles with my Nokta Simplex near the railway station. They sounded off with the purest high tone signal that you could imagine.
If only gold sounded like that with a vlf.... tongue

Last edited by OzzieAu (09 April 2021 11:56 pm)


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#4

Nightjar
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From: Home-Waikiki, Prospect-Leonora
Joined: 26 September 2013
Posts: 2,118
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10 April 2021 12:13 am

They look like bronze? Sand or file a section and check colour.


The only place success comes before work is in the dictionary.
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#5

Upside
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Joined: 15 April 2017
Posts: 564
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10 April 2021 06:31 am

Nightjar wrote:

They look like bronze? Sand or file a section and check colour.

Definitely copper if it's from Kapunda.

#6

Nightjar
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From: Home-Waikiki, Prospect-Leonora
Joined: 26 September 2013
Posts: 2,118
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10 April 2021 11:06 am

Maybe this will help?

https://www.google.com/search?q=Kapunda … afe=active


The only place success comes before work is in the dictionary.
Happy Hunting, Nightjar.

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#7

OzzieAu
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From: Adelaide
Joined: 04 November 2014
Posts: 1,383
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10 April 2021 01:32 pm

I reckon the two smooth bits may be smelted copper, but the more crystalline one I think is natural and hasn’t been formed by smelting.
I filed and polished the corner of the small one and it is quite lustrous. I might work them into jewellery pendants.1618021937_4a0d44ad-f7f5-48db-aada-5040526a141e.jpg
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1618021938_4cf6f2e1-bdef-4ccb-ace9-44bdbe418b78.jpg


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#8

Moneybox
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From: Cue, WA
Joined: 10 October 2014
Posts: 2,510
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10 April 2021 01:45 pm

We have some native copper nuggets from deep underground in Cloncurry. They look just like your smooth ones but perhaps a bit more coppery, darker in colour. I'd post a photo but Mrs M has them in an area where I can't go in my dirty wet boots hmm


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#9

OzzieAu
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From: Adelaide
Joined: 04 November 2014
Posts: 1,383
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19 April 2021 05:44 pm

I took to the bigger smooth nugget with the dremmel and fine sandpaper..... it almost looks like the real thing gold-nugget
I reckon it will look good hanging on a nice chain.
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Hopefully one day I’ll walk over a golden one that size. playful


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#10

Jaros
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From: S.E.Qld., QLD
Joined: 11 August 2013
Posts: 14,426
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19 April 2021 06:07 pm

Might attract a few "sirens".


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#11

Pat Hogen
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Joined: 02 January 2018
Posts: 311
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19 April 2021 08:17 pm

I like it!


Absinthe makes the heart grow fonder

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#12

goldierocks
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Joined: 10 January 2015
Posts: 3,280
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20 April 2021 04:41 pm

OzzieAu wrote:

Kapunda mine was the first commercial copper mine in Australia.
I detected these solid copper slugs in some spoil piles with my Nokta Simplex near the railway station. They sounded off with the purest high tone signal that you could imagine.
If only gold sounded like that with a vlf.... tongue

There was no mining near the railway station (nor a smelter), so perhaps you are speaking in a more general way in terms of location? Anything there would have been moved there. Difficult to tell if natural or not. From memory the smelter was a fairly small one-storey affair south from the nunnery on the eastern side of the mine, so well away from the railway line (no longer visible when I was there nearly 50 years ago). I drilled Kapunda for a year in about 1973-4 I think.


Robert Benchley...
I have kleptomania, but when it gets bad, I take something for it.

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#13

goldierocks
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Joined: 10 January 2015
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22 April 2021 01:50 pm

The smelter was behind Jt Johnson and sons (directly opposite car park), So if you found it there it is probably not natural native copper.


Robert Benchley...
I have kleptomania, but when it gets bad, I take something for it.

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#14

OzzieAu
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From: Adelaide
Joined: 04 November 2014
Posts: 1,383
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22 April 2021 08:34 pm

Found them here... not too far away from your smelter location. They could have been spilled while being transferred to rail wagons.
1619084006_186b5879-3c09-4e23-bc7b-c1db4fa0b3f2.jpg


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#15

goldierocks
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Joined: 10 January 2015
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26 April 2021 01:04 am

Probably - no mines ever near Railway Pde


Robert Benchley...
I have kleptomania, but when it gets bad, I take something for it.


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