A Nice Specimen But You Can`t Tell By Looking At It

[phoenix]

I got out to Tarnagulla today for a detect and I got 2 little specimens and then I finished off the day with this beauty. I was using the 7000 with JP`s recommended conservitive settings and this sounded like a very deep target.  I was surprised when I moved it about 5" down.  What really excited me about this one was I did some testing and the 2300 can get it at about 8" and the 7000 can only get it at 6". That in itself told me there was a fair bit of gold in it. I suspect a 5000 would struggle to hear it.  This speci is predominately quartz but it has a thin layer of ironstone around it.  In the first 2 photos are the only two pieces that are readily visible but under high magnification there are at least 100 pinpoints of gold visible all around it.   I have no idea how much the ironstone mucks up the SG, but the sg for quartz says there is 28.649 grams of gold in this piece.   I`m not going to drop this one in acid till my mate waves his 5000 over it. I`m hoping there is going to be a heap of gold visible once the ironstone is gone.  cheers Dave

[deutran]

Very nice find Dave,well done.I would recommend an SG for 50% Quartz and 50%black ironstone as a guess an SG of 3.5-4.5 for the total rock.Its a very difficult one to SG.Just from the ones I've done in the past its my guess.

[phoenix]

Steve what is the formula for 50-50?

[deutran]

I've sent a link.Just use SG of 4 in the formula and that should cover the combination.

[Northeast]

Very nice Phoenix - look forward to seeing it post acid. 

[bloodgold2]

Nice mate yeah on species the 7000 excels over the 5k hands down.

[phoenix]

Hey JW.   I have another quartz speci that I got about 30 years ago with a 60khz Whites GoldMaster that sg`s at 13 grams of gold, and it has heaps of gold visible, a 5000 can not hear it at all, the 7000 can hear it at about 6" and the 2300 can hear it a little deeper.
No mate today I was using the 14".  My settings were gain 7, target volume 6, high yield and difficult ground, and the only setting I played around with on the 7000 was general gold mode.  General can hear it but not quite as deep as high yield.
cheers Dave

[madtuna]

bugger the acid Dave... smack the crap out of it and pan it off!

curious to see the results.. Well done!

[beatup]

very nice can't wait to see it cleaned up

[GoldEn]

wow Dave

 

Nice detecting.

Well done and looking forward to see it clean.

Could be good spot for more.

Hope is as much gold as you say.

 

I am done for detecting for a while for gold nuggets but should be able to show and tell in 3-4 weeks.

 

 

GoldEN