Fossilman
Cave Dweller
Member since January 2009
Posts: 20,711
|
Post by Fossilman on May 6, 2016 18:34:40 GMT -5
A buddy of mine found this around northern Utah,near the silver mines..Any idea what it might be?? It's a dull green grey in color,a bit of weight to it for its size...A bit of quartz in it too..
|
|
Fossilman
Cave Dweller
Member since January 2009
Posts: 20,711
|
Post by Fossilman on May 9, 2016 9:09:03 GMT -5
A buddy of mine says its a type of ore tailing from a silver mine...I'm going to cut it too..........
|
|
Deleted
Deleted Member
Member since January 1970
Posts: 0
|
Post by Deleted on May 9, 2016 15:38:58 GMT -5
Dissolve it in nitric acid. Extract the metal. Make a jewelry "sole authorship" ....
|
|
|
Post by orrum on May 9, 2016 17:25:50 GMT -5
I cabbed silver ore b4, it's beautiful with bright shiny silver in it.... Then I looked a few months later n the silver tarnished to a dull black but hey jewelry cleaner brightens it right up!
|
|
|
Post by greig on Aug 16, 2016 12:06:58 GMT -5
I cabbed silver ore b4, it's beautiful with bright shiny silver in it.... Then I looked a few months later n the silver tarnished to a dull black but hey jewelry cleaner brightens it right up! Did you do anything special (lessons learned) when you cabbed the silver ore? Was it pure vein material or a matrix of rock and ore?
I am asking because I have quite a bit of it of various sizes and grades, from metal detecting in northern Ontario. I have tumbled some and slabbed other pieces. Here is one nugget that was made into a pendant by someone in Sweden that I did a trade on another forum:
|
|
|
Post by orrum on Aug 16, 2016 13:02:03 GMT -5
I was given the ore and told u could slab and cab it. The silver was in big spots, like bb size in b a line.
|
|
|
Post by Peruano on Aug 17, 2016 7:22:36 GMT -5
It looks a lot like the greenstones (Precambrian metamorphics) that I find here in New Mexico. If so it will tend to be soft, likely to fracture easily when you cut it. Greenstones are schists with among other things olivine hence the green color. Just a wild guess, because I've seen so much of that stuff and metamorphics are common around mine areas.
|
|
|
Post by rockjunquie on Aug 17, 2016 21:26:49 GMT -5
I cabbed silver ore b4, it's beautiful with bright shiny silver in it.... Then I looked a few months later n the silver tarnished to a dull black but hey jewelry cleaner brightens it right up! Did you do anything special (lessons learned) when you cabbed the silver ore? Was it pure vein material or a matrix of rock and ore?
I am asking because I have quite a bit of it of various sizes and grades, from metal detecting in northern Ontario. I have tumbled some and slabbed other pieces. Here is one nugget that was made into a pendant by someone in Sweden that I did a trade on another forum:
Sorry to hijack fossilman, but I wanted to answer this for our new board member. I have cabbed many silver in cobaltite with high silver content. It cabbed like any other stone, in fact, it cabbed rather easily. It works up beautiful cabs.
|
|
|
Post by greig on Aug 18, 2016 12:25:42 GMT -5
I appreciate the feedback and advise. I just realized that my picture of the nugget pendent did not post. I will read up on how to post pics on this forum. Sounds like I need a Flicker account, rather than attach directly - I can do that...
I never thought about cabbing cobaltite and treat it as "leverite". It is one of the reasons that I tend to use a PI (Minelab GPX5000) metal detector, because the PI avoids cobalt. However, when I use a VLF detector (Gold Bug Pro), cobalt sounds like silver, so I have to dig it. For sure, whenever I leave cobalt on the surface, it does not last long before somebody else grabs it.
Greig
|
|
Fossilman
Cave Dweller
Member since January 2009
Posts: 20,711
|
Post by Fossilman on Aug 18, 2016 14:43:17 GMT -5
Did you do anything special (lessons learned) when you cabbed the silver ore? Was it pure vein material or a matrix of rock and ore?
I am asking because I have quite a bit of it of various sizes and grades, from metal detecting in northern Ontario. I have tumbled some and slabbed other pieces. Here is one nugget that was made into a pendant by someone in Sweden that I did a trade on another forum:
Sorry to hijack fossilman, but I wanted to answer this for our new board member. I have cabbed many silver in cobaltite with high silver content. It cabbed like any other stone, in fact, it cabbed rather easily. It works up beautiful cabs. No worries!!! Two thumbs up
|
|