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#1

m@ttACT
Member
From: Canberra, ACT
Joined: 24 June 2014
Posts: 89
Member
11 October 2019 01:05 pm

1570759334_ec2f6eab-ea4b-4e22-8133-025bac414e29.jpg

1570759393_039c66db-aa76-44b0-b562-4e0c6e855c51.jpg

Anyone have any idea what these could be?

Found with a 4500 around an old mine shaft on reefs.

Picture 1 - Largest bit same width as a 20c coin for perspective. Really heavy, no free gold that I can see, however these hit hard on the detector.

Picture 2 - Largest bit same width as a 10c coin. I assume these are melted somethings?? Scratched looks like Lead as it’s metallic. Just checking this isn’t mercury???

Thanks and appreciate the help!


Prospecting = 20 years of trudging km’s through the bush to find my dream nugget. Still lookin
GPX 4500 and Evo coils

1 user likes this post: Goldpin Prospecting

#2

HoudiniHarry
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From: GT, VIC
Joined: 09 November 2016
Posts: 1,187
Member
11 October 2019 01:43 pm

looks like rusty iron. Find these alot around mines.

Cheers


Having a great time searching for gold....
GPX4500

#3

m@ttACT
Member
From: Canberra, ACT
Joined: 24 June 2014
Posts: 89
Member
11 October 2019 05:22 pm

Update: Had a quick look under jewellers loop and can see free gold throughout so def not rusty iron. HoudiniHarry I found what I thought was a square looking bit of iron down in Talbot but under a jewellers loop you could see the gold running in veins sandwiched in between.

I’m pretty sure this was the stuff the miners were chasing however they prob had found better grades in that reef.


Prospecting = 20 years of trudging km’s through the bush to find my dream nugget. Still lookin
GPX 4500 and Evo coils

#4

MegsyB007
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Joined: 10 September 2018
Posts: 1,333
Member
11 October 2019 06:32 pm

I'd be crushing and panning it! smile


The Australian bush - love it - take care of it.

#5

20xwater
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From: Bathurst, NSW
Joined: 05 March 2014
Posts: 1,082
Member
11 October 2019 07:20 pm

Pic 1 is quite unusual but looks processed and aged and oxydised... interesting find mate

#6

m@ttACT
Member
From: Canberra, ACT
Joined: 24 June 2014
Posts: 89
Member
11 October 2019 07:28 pm

1570782504_40801363-8212-48db-bfe7-eba740a6bafe.jpg

Cracked one and...This is what they look like inside...they grabbed my attention as they look really interesting and now even better!!

Yeah heavily oxidised I’m definitely sure now these are not iron! Best thing is I have 2 full film canisters of the stuff

Last edited by m@ttACT (11 October 2019 07:46 pm)


Prospecting = 20 years of trudging km’s through the bush to find my dream nugget. Still lookin
GPX 4500 and Evo coils

2 users like this post: pinfire opals, jethro

#7

jethro
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From: North East , VIC
Joined: 06 September 2013
Posts: 568
Member
12 October 2019 09:13 am

Its worth hanging onto just for specimen value/ interest alone. Have you tried to research the mining records in the area, it may give you a clue to the mineralization style. Hopefully one of the Geos will chime in and solve the mystery, Good Pics too. perfect

#8

Retirement Stone
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From: Newcastle, NSW
Joined: 26 November 2013
Posts: 856
Member
12 October 2019 09:34 am

Hey mate,

Crush the one you cracked open. Pan the crushings with some other dirt and see what heavies are there.

Something doesnt look quite right with the gold coloured picture. Looks minerally/crystally???

I hope it is gold cause there will be more where that come from. Dont rely on the detector only. There could be fine gold that is not detectable by the 4500. Any rocks that look like that, gather up and test by crushing and panning. Looks like ancient conglomerate from an old river bed. Maybe there was no reef, there were chasing the ancient river bed????

Cheers and good luck!!!

RS


GPZ 7000, SDC 2300, Walbanker, Garrett pans, Determination and a touch of insanity mixed with Gold Fever!

#9

m@ttACT
Member
From: Canberra, ACT
Joined: 24 June 2014
Posts: 89
Member
12 October 2019 10:50 am

Thanks guys I’ve sampled a bit and yep small and large flakes of gold throughout the crushings. I’ll weigh the rest and gravity test it then Jethro probably sell them as they look great and good for a collection.

RS I’m sure it’s reef they were chasing as ive scoped out a 2 km line of these workings where you can still see the untouched saddle reefs they bypassed most likely as they didn’t have enough mineralization I’d assume.

If I’m honest I’ve seen heaps of different specimens and nuggets over the years, along with some other reef specimens I’ve found only lately in my area a lot of gold bearing rock that literally looks like headland reef on a coastline. Only comparison I can make.

I recently found a section of the ancient Shoalhaven River high on the cap of a hill siding a conglomerate deposit. This section was about a foot wide, waterworn into square sections crisscrossed by heavy dark quartz veins.

The area with the above finds was known for reefs, small nuggets and alluvial. I’m heading back out next week for 4 days gonna smack it hard!


Prospecting = 20 years of trudging km’s through the bush to find my dream nugget. Still lookin
GPX 4500 and Evo coils

3 users like this post: Retirement Stone, jethro, Goldpin Prospecting

#10

jethro
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From: North East , VIC
Joined: 06 September 2013
Posts: 568
Member
15 October 2019 07:11 am

Keep the posts coming. really interesting oxidation alteration.

#11

Smoky bandit
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Joined: 05 April 2016
Posts: 4,369
Member
15 October 2019 07:39 am

It just doesnt look like gold to me.
Interesting though.


No pain No gain..

#12

m@ttACT
Member
From: Canberra, ACT
Joined: 24 June 2014
Posts: 89
Member
15 October 2019 06:30 pm

This is an interesting one as 2 of those species contained gold and the others a super sparkly silver something?

I’ll get some pics and post them.

I had a quick look at finding someone local to test mineral content...no luck so if anyone can point me in the right direction I have shite loads of samples from other sites


Prospecting = 20 years of trudging km’s through the bush to find my dream nugget. Still lookin
GPX 4500 and Evo coils

1 user likes this post: RM Outback

#13

Gimp
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Joined: 25 September 2018
Posts: 228
Member
15 October 2019 06:39 pm

m@ttACT wrote:

This is an interesting one as 2 of those species contained gold and the others a super sparkly silver something?

I’ll get some pics and post them.

I had a quick look at finding someone local to test mineral content...no luck so if anyone can point me in the right direction I have shite loads of samples from other sites

ALS Orange

#14

DykeHead
Member
From: , VIC
Joined: 27 August 2018
Posts: 69
Member
15 October 2019 07:16 pm

How magnetic is it ???

#15

jethro
Member
From: North East , VIC
Joined: 06 September 2013
Posts: 568
Member
15 October 2019 09:06 pm

The super sparkly silver something is most probably Arsenopyrite, a sulphide of arsenic and iron. If you can isolate a nice crystal of it and strike it or heat it the fume will smell like garlic. Just dont concentrate the fumes and inhale deeply. Arsenopyrite is a common mineral found in gold ore deposits.

#16

DykeHead
Member
From: , VIC
Joined: 27 August 2018
Posts: 69
Member
15 October 2019 09:30 pm

If you heat it arsenic fumes will be released the cool thing is it becomes magnetic when heated so if it sticks to a magnet only when heated it's definitely arsenopyrite.

Last edited by DykeHead (15 October 2019 09:32 pm)

#17

m@ttACT
Member
From: Canberra, ACT
Joined: 24 June 2014
Posts: 89
Member
15 October 2019 09:31 pm

Thanks Gimp legend

I’ll have a look DH and let you know. Jethro I’ll post a pic soon trying to get these kids to bed!!


Prospecting = 20 years of trudging km’s through the bush to find my dream nugget. Still lookin
GPX 4500 and Evo coils

#18

m@ttACT
Member
From: Canberra, ACT
Joined: 24 June 2014
Posts: 89
Member
15 October 2019 09:31 pm

Awesome tips will do


Prospecting = 20 years of trudging km’s through the bush to find my dream nugget. Still lookin
GPX 4500 and Evo coils


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