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Wiyaka Nupa

Member
Joined
Dec 4, 2014
Messages
8
Greetings from the wind swept plains of Kansas.
My Grandfather was a mining contractor in the Colorado gold fields. My Father worked in the mines until he completed his degree in Earth Science. I choose a different path and became a farmer. The pay is worse, and the job more dangerous, but it suites my needs.

I will continue to use the search engine to research the topic, that brought me here. That should save on questions that have already been answered.
Succinctly, I have a limited amount of calaverite ore from Teller Co. CO. Have chosen to mill and refine some of it. Have constructed a small stamp mill, and panned the screened powder. Tried to make a Dore' button thrice, but only wasted the samples and received some expensive and unimpressive fireworks.

I read the rules here and applaud them wholeheartedly. It is refreshing to find a site where all members operate with a modicum of decorum that embraces the responsibilities of free speech.
The thread about choosing one's name was also well received. My name simply means two feathers in Lakota. The name was gifted long ago before computers and boards.

In closing, it would be proper to thank the originator and moderators of this board. I am truly honored to be here.
 
Welcome to the forum. Stick around and you'll soon see that you're in the best place in the world to learn about refining precious metals.

Enjoy!

Kevin
 
Wiyaka Nupa said:
I have a limited amount of calaverite ore from Teller Co. CO.
Is it possible for you to post a picture of the ore?
The reason I ask is that many years ago, I had delivered to me 180 pounds of ore from a mine in Colorado. The head assay exceeded 300 ounces/ton.

The ore in question was processed by ball mill, followed up by agitation in tank with a cyanide solution. Extraction in excess off 99% was accomplished, according to the tail assay. It was necessary to use bromine in conjunction with the cyanide. While there was considerable free gold visible to the eye, the predominance of gold was very finely divided, visible only under magnification with a microscope.

Harold
 
Thank you Kevin.

Harold, I'm rather awkward with photos but will try Here is a mental image. The stone is arkosic grey granite, evenly interspersed with purple flourite. Both matrices are rich with visible tellurium, as the metals were deposited by hydrothermal processes during venting of the cauldera. I have some museum quality pieces with curtains of gold from a vug. Grandfather and Father had an excellent eye. The ore I'm working with was probably 800 to 1,000 ounces per ton, as Dad knew the trade. The panned material is 60% micro-fine particles, 20% medium, 20% large enough to be difficult to suck into a dropper. There is enough gold left in the pan tailings to attract ones eye. Most of the grey material becomes soluble, leaving a very pleasant purple material.

The processing method you describe is similar to the one used originally at the old Carleton Mill. They roasted the ore first by pouring diesel fuel over it and igniting it. When the mill was disassembled there was several million dollars of $300 gold in the chimney.

I'll get on the images.
 
Hi and welcome to the forum.

Would you be interested in selling a couple of nice mineral specimens? I'm a mineral collector (among other things) and it sounds like you have something very interesting there.

Göran
 
Greetings Goran, It's more my nature to trade. When I get some images, I'll include some for trading purposes.

See pm.
 
:oops: Could someone direct me as to posting images, please. I really have looked, but obviously not in the correct venue.

Thanks in advance
 
Mission accomplished! Attached are pictures of the calaverite from Teller Co. CO.
 

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Thanks for the great pictures.
The ore I processed apparently had a different origin, as there was none of the purple color included.

That's some very nice looking stuff!

Harold
 
Thank you very much Harold. I saw some on E-bay from California. Wasn't very aesthetically pleasing and they were asking a fortune for it.

WN
 
As far as I can judge that is spot on for the calaverite ore from Teller.

The purple areas is fluorite, or as many members of this forum sees it, fluorspar. The interesting part for mineral collectors are the small white shiny crystals, the calaverite.

Göran
 

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