Does large gold grow like potato's??

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dose large gold grow ?? here's a book on the exact theory quite interesting talks about Australian gold fields download to view better. this has been scanned by me from an 1897 book
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Was watching that new stargazing series on Abc
Other day ( only show Ill watch on abc ) and Brian Cox was saying theyve only just discovered where gold comes from , after years of theories. Australian scientists just discovered it is produced when a star explodes , and is strewn across space , and thus lands on planets via meteorites and dust etc . Amazing !

No wonder its so precious !

Happy hunting

Gunter
 
G'Day all

Actually some gold nuggets have now been shown to grow in some soil types, particularly lateritic soils. It takes a great deal of time however. Nuggets with quartz have also grown in reefs by gold moving up to the oxidised zones of the reefs. That is why gold mines were often very rich near the surface and the grade dropped away rapidly below the water table. As for gold coming from collapsed stars, that is true. However every element with an atomic number greater than that of carbon came from collapsed stars. none of this drifted through space and fell onto Earth rather all these elements were in small proportions in the dust and debris from the ex-star. When this dust and gas was pulled together to form a new star the disc of debris also formed the planets. Gold and other elements were then subject to planetary geological processes which either distributed the elements around and or concentrated them. As Carl Sagan said - we are all made from star stuff.

Araluen
 
Interesting historically, but 121 years out of date. The person who wrote it did not have a good knowledge of nuggets - he says that they don't occur in quartz in Victoria and NSW (try Holtermanns at Hill End) and that streams could not have moved nuggets like the Welcome Stranger so it must have grown in situ in a stream. However the Welcome Stranger did not come out of a stream, nor did most nuggets over 15 kg found on the Ballarat goldfield (for example). They were found on hillsides in soil usually a few tens of metres at most downhill of the quartz veins that they had weathered out of (the Welcome Stranger still had more than 20 kg of quartz attached to it. So a bit of an armchair theorist.
 
some of the old history of gold publications identify some gold bearing locations as " the potato patch" one that comes to mind was the cudgegong river area that is now wyndamere dam , the chinese walked along the old river bed digging up nuggets the size of potatoes , that was 150 years ago , might be time for the next crop of nuggets to be harvested lol
 
NERD ALERT!

I lived in an area with sodolic soil (salt), and so the water in your dam would be extra cloudy because of the repelling action of the Na (sodium) ions. We would chuck a bag of lime in the local dams to settle it - I believe that the lime did something that caused the Sodium to become attracted ionically to itself, causing the sediment to aggregate, or clump.

Is there any sort of thing that could be used in land that's known for gold, to hurry it up?

Signed, Curious.
 
G'Day Mungoman

I am afraid not. The true concretionary gold nuggets like those in WA or parts of the GT were you can show that the gold is not a giant specimen that has weathered out of a long gone reef, occurs in soils with a large concentration of gold it is true, but the gold is in parts per billion or parts per trillion. It would take at the minimum tens of thousand of years to concentrate the gold onto a potential nugget. In WA we studied this extensively and found that it is humic acids in slightly saline soils that disolves the gold, transport it to near surface where it deposits on clays. how a nugget is actually triggered we cannot determine or even why it continues to grow after seeding. Extremely saline ground water disolves gold and when it gets hypersaline will deposit again. Can't think of anything that would not end up destroying the delicate balance of the formation of nuggets that could speed up the process.

Araluen
 
Thanks Araluen - Very interesting. That saline soil instigates some chemistry, doesn't it.
 
goldierocks said:
Interesting historically, but 121 years out of date. The person who wrote it did not have a good knowledge of nuggets - he says that they don't occur in quartz in Victoria and NSW (try Holtermanns at Hill End) and that streams could not have moved nuggets like the Welcome Stranger so it must have grown in situ in a stream. However the Welcome Stranger did not come out of a stream, nor did most nuggets over 15 kg found on the Ballarat goldfield (for example). They were found on hillsides in soil usually a few tens of metres at most downhill of the quartz veins that they had weathered out of (the Welcome Stranger still had more than 20 kg of quartz attached to it. So a bit of an armchair theorist.
This map shows what I mean (Ballarat goldfield). The black squares are mine shafts on quartz reefs (not alluvial shafts). Circles with a dot in them are gold nuggets larger than 15 kg. Alluvial gold leads are also shown as streams. You can see that the nuggets are all on top of or only slightly downhill of the quartz reefs (which are denoted by shafts), even when they occur in streams (in fact a number were above stream level).

1529114469_ballarat_nuggets.jpg
 
SWright said:
G'Day Mungoman

I am afraid not. The true concretionary gold nuggets like those in WA or parts of the GT were you can show that the gold is not a giant specimen that has weathered out of a long gone reef, occurs in soils with a large concentration of gold it is true, but the gold is in parts per billion or parts per trillion. It would take at the minimum tens of thousand of years to concentrate the gold onto a potential nugget. In WA we studied this extensively and found that it is humic acids in slightly saline soils that disolves the gold, transport it to near surface where it deposits on clays. how a nugget is actually triggered we cannot determine or even why it continues to grow after seeding. Extremely saline ground water disolves gold and when it gets hypersaline will deposit again. Can't think of anything that would not end up destroying the delicate balance of the formation of nuggets that could speed up the process.

Araluen
Just like it takes a grain of dust to grow a rain drop :Y: LP
 
And like a snow flake no 2 nuggets are alike because the environment it was created in is allways different from another, the formula of life...Brian Cox is a legend!

And yet a sulphide is categorised as aninimate, I disagree..
 
And when all the potatoes were gone, along came cyanide,
with a pinch of zinc,a pour of lead nitrate,throw in some
diatomaceous earth,and all those microscopic goldies,
were baked into a golden cake.
 
20xwater said:
And like a snow flake no 2 nuggets are alike because the environment it was created in is allways different from another, the formula of life...Brian Cox is a legend!

And yet a sulphide is categorised as aninimate, I disagree..
And SWright and I are talking about different environments - in WA nuggets can enclose iron pisolites formed in the weathering zone. But not in streams.....
 
goldierocks said:
goldierocks said:
Interesting historically, but 121 years out of date. The person who wrote it did not have a good knowledge of nuggets - he says that they don't occur in quartz in Victoria and NSW (try Holtermanns at Hill End) and that streams could not have moved nuggets like the Welcome Stranger so it must have grown in situ in a stream. However the Welcome Stranger did not come out of a stream, nor did most nuggets over 15 kg found on the Ballarat goldfield (for example). They were found on hillsides in soil usually a few tens of metres at most downhill of the quartz veins that they had weathered out of (the Welcome Stranger still had more than 20 kg of quartz attached to it. So a bit of an armchair theorist.
This map shows what I mean (Ballarat goldfield). The black squares are mine shafts on quartz reefs (not alluvial shafts). Circles with a dot in them are gold nuggets larger than 15 kg. Alluvial gold leads are also shown as streams. You can see that the nuggets are all on top of or only slightly downhill of the quartz reefs (which are denoted by shafts), even when they occur in streams (in fact a number were above stream level).

https://www.prospectingaustralia.com/forum/img/member-images/4386/1529114469_ballarat_nuggets.jpg
The shafts on the map show you that there are three parallel reef systems that strike north-south for 16 km (smaller nuggets all the way, you know, pissy little things of a kg or ten), and the 15 kg nuggets occur on all three - Ballarat West, Ballarat East and Little Bendigo (also called Nerrina).
 

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