YELLOW CLAY

[hmmm]

if any is following my blue clay post, i have a new one , yellow clay. nwhats cool is the color sitting on top of the clay.
any one know about this yellow clay.

 

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[jimmygoat]

That stuff looks nasty. I don't think I'd run that through my sluice. Gold should be on top. Jimmygoat

 

[strickman]

could be rust stained,from black sands.or better yet GOLD ------probably stained,wich ever the case you sure do have a LOT of it.

 

[hmmm]

That stuff looks nasty. I don't think I'd run that through my sluice. Gold should be on top. Jimmygoat

there is only 2 inches of gravel on top , and yes it does have gold [color] lots of garnites.what is cool is the clay, you can peel it, the layers come apart and you can rool it up. the yellow clay is on the bottom layer. just down stream about 100 feet, the two colors mix an it turns green. abloutly a amasing place.

i just looked at the picture and you can see the layers.

 

[hmmm]

could be rust stained,from black sands.or better yet GOLD ------probably stained,wich ever the case you sure do have a LOT of it.

very interisting, rust from black sand sitting on the bed rock, lets hope so.
20 feet up stream it all turns yellow.

 

[Jim Hemmingway]

Hi Hmmm,

Hmmm, it looks to me that you're in a very iron rich area. I have not followed your posts, and rarely look in here...so don't know what may or may not have been said by others.

Usually iron in one form or another is responsible for coloring clays or soils.
Some examples:

• maghemite will color soils a red or red-brown color, and will have some magnetism to the soil, and that soil may very well compensate about mid-range on a ground balance scale.
  

• a chemically reduced iron in the ferrous state (Fe+2) will give clays a blue color, whereas an oxidized iron Fe+3 will give clays a red color; these clays are typically weakly magnetic, and ground balance about two-thirds GB range, maybe even approaching the lower magnetite GB compensation range. Of course these clays are not at all magnetic compared to magnetite.
  
• some limonite (hydrated iron oxides) will cause soils to take on a brownish-yellow color among others. Weakly magnetic, GB compensation roughly two-thirds on a given scale.

In your instance, I suspect your yellow clays are rich in a hydrated ferric oxide named "Lepidocrocite". It is yellow to brown in color and is a known constituent of some yellow clays. It can be quite magnetic at times, but not as magnetic as magnetite. It typically compensates on a GB (ground balance) scale above maghemite on up to about two-thirds of a typical GB scale.

Generally most soils contain several % by weight of iron in one form or another, often mixtures. Most of the iron present within soils is a part of the clay fraction of the soil.[/list]

 

[NJnuggetpirate]

Hi Hmmm,

Hmmm, it looks to me that you're in a very iron rich area. I have not followed your posts, and rarely look in here...so don't know what may or may not have been said by others.

Usually iron in one form or another is responsible for coloring clays or soils.
Some examples:

• maghemite will color soils a red or red-brown color, and will have some magnetism to the soil, and that soil may very well compensate about mid-range on a ground balance scale.
  

• a chemically reduced iron in the ferrous state (Fe+2) will give clays a blue color, whereas an oxidized iron Fe+3 will give clays a red color; these clays are typically weakly magnetic, and ground balance about two-thirds GB range, maybe even approaching the lower magnetite GB compensation range. Of course these clays are not at all magnetic compared to magnetite.
  
• some limonite (hydrated iron oxides) will cause soils to take on a brownish-yellow color among others. Weakly magnetic, GB compensation roughly two-thirds on a given scale.

In your instance, I suspect your yellow clays are rich in a hydrated ferric oxide named "Lepidocrocite". It is yellow to brown in color and is a known constituent of some yellow clays. It can be quite magnetic at times, but not as magnetic as magnetite. It typically compensates on a GB (ground balance) scale above maghemite on up to about two-thirds of a typical GB scale.

Generally most soils contain several % by weight of iron in one form or another, often mixtures. Most of the iron present within soils is a part of the clay fraction of the soil.[/list]

HERE COMES THE SCIENCE

 

[robgwv]

Same as snow...dont eat it

 

[AUMIKE]

Thanks Jim it's always great to hear your opinion. Where you been?

 

[TerryC]

I have seen gray clay like that in a gold mine that was actice till the 1950's (in Calaveras Co. CA). Great pics! The clay vien was not as striking as yours, though. Check it out under a mineral scope mine was LOADED with very well formed quartz crystals. I posted one several months ago. Check out yours under power. TTC

 

[NJnuggetpirate]

i would like to do some pottery with it mix the yellow and blue