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Big Specimen Little Gold


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Well done, nice pick up.

If an 800 sees it at 8" (or a 7000 at 15") my guess is there may be more gold inside the quartz

I hope so for you ??

How bad is the mineralization at your goldfield ?

 

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Awesome speci Mitchel, onya!

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I'm hoping he lets us know the total at some point.  Should be interesting!

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On 5/21/2018 at 4:54 AM, SittingElf said:

I'm hoping he lets us know the total at some point.  Should be interesting!

Elf,

It IS interesting because it is a mixed 'result' as they say.

I have just made my weight measures and it leaves me with some things still to figure out.  I am using this:

http://www.desert-gold-diggers.org/gold/specgrav.htm#Calc

When I put in my dry weight (695g) and my suspended in water weight (430g) it come up with a -8.48g of gold!  Something is not 'right' because we can see gold there.  If the specific gravity of the quartz is changed to 2.60 in the formula then you get +7.19g of gold.  So the quartz from this area (The Dale District) may have a value between 2.60-2.65.  This one is too close to call so ...

Am I missing something?

Mitchel

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11 minutes ago, NSC said:

Well Mitchel you could always dolly it and pan off the gold content ? ?

 

True!

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You have a bit of a dilemma to deal with. Years ago I was in the same pickle and decided to soak a particularly interesting piece of monzonite with blade of gold showing in HF acid. This is what I came away with

P1060011 (Medium).JPG

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I have now given thought to my measurements and weighed again with a fixed scale position.  This took out the motion of holding and I now have a more accurate estimate.  The dry weight is 691g.  The water weight it 431g.  This makes the estimated gold 5.1g without changing the sg for quartz.  Who knows?

Mitchel

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