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Post by Son Of Beach on Dec 12, 2021 20:09:21 GMT -5
I received this in one of Tommy's grab boxes and this little guy shone with a little water...I love the colors I've seen Chrysocolla tossed around here, but just trying to get a positive ID before I do anything with it.
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Post by hummingbirdstones on Dec 12, 2021 20:20:35 GMT -5
I received this in one of Tommy's grab boxes and this little guy shone with a little water...I love the colors I've seen Chrysocolla tossed around here, but just trying to get a positive ID before I do anything with it. Looks like copper complex: chrysocolla, azurite, cuprite and probably I few more copper minerals.
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Post by Son Of Beach on Dec 12, 2021 20:52:04 GMT -5
I received this in one of Tommy's grab boxes and this little guy shone with a little water...I love the colors I've seen Chrysocolla tossed around here, but just trying to get a positive ID before I do anything with it. Looks like copper complex: chrysocolla, azurite, cuprite and probably I few more copper minerals. Ok, I clearly need to research a little more. Thank you!
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Post by hummingbirdstones on Dec 12, 2021 21:55:00 GMT -5
If vegasjames pops in, he'd be able to tell you probably exactly what's in there. Have a look a some of his old threads. He was always hounding around old copper mines in Nevada.
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Tommy
Administrator
Member since January 2013
Posts: 12,881
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Post by Tommy on Dec 12, 2021 23:29:32 GMT -5
Ummm... yeah, so I'm kinda sorta thinking I might possibly need that piece back... you understand right?
Haha j/k - yeah I never quite knew what that was but I'm pretty sure it's what Robin said. I seem to remember it being quite soft so maybe consider stabilizing it before taking it to the wheels?
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Post by Pat on Dec 12, 2021 23:58:28 GMT -5
You have just awakened an interest in copper complexes! Thanks! Pretty stuff!!
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Post by Son Of Beach on Dec 13, 2021 7:32:01 GMT -5
Ummm... yeah, so I'm kinda sorta thinking I might possibly need that piece back... you understand right? Haha j/k - yeah I never quite knew what that was but I'm pretty sure it's what Robin said. I seem to remember it being quite soft so maybe consider stabilizing it before taking it to the wheels? Ha, I almost kept it to myself, clearly that piece was scooped up in the mess .
Yea that's why I'm checking its an awesome little stone so I need to get it right when the time comes.
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rewdownunder
spending too much on rocks
Member since March 2012
Posts: 357
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Post by rewdownunder on Dec 13, 2021 13:50:32 GMT -5
I love the colors of the many copper minerals. The problem is most of it never sees the lapidary market. This is mine run from the oxide zone in the DeGrussa copper mine in western Australia discovered in 2009. Millions of tons of this material was shipped to China to be smelted for the copper & gold. A small amount was sold in Tucson for $30.00 a pound.
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rewdownunder
spending too much on rocks
Member since March 2012
Posts: 357
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Post by rewdownunder on Dec 13, 2021 14:11:49 GMT -5
A slab I cut and had polished as part of a display on copper deposits that will be going to a Geology Department.
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rewdownunder
spending too much on rocks
Member since March 2012
Posts: 357
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Post by rewdownunder on Dec 13, 2021 14:28:09 GMT -5
In 2012 about fifty slabs of this material were cut by Aradon in Perth for the mining company as part of a special project. I think one or two of these made it to the US
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Post by Son Of Beach on Dec 13, 2021 15:00:37 GMT -5
rewdownunder Thanks for sharing the pictures, it's cool you keep a record of all your work adventures...it would be wild to just stumble upon that randomly. I've found some of the green and blues from randoms found in the U.P., nowhere near the quality but still neat. Also, happy belated birthday
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rewdownunder
spending too much on rocks
Member since March 2012
Posts: 357
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Post by rewdownunder on Dec 13, 2021 15:58:24 GMT -5
Thanks for the birthday wishes. There are some great copper minerals and material that came out of the UP. The problem is it has so much value as ore it is shipped and smelted. Some of the best native copper sheets in the world are from the UP. In the 1970s as a geology student we got into several mines on field trips and were able to take a few samples. I have a set of bookends with native copper in host rock that are almost to heavy to put on a shelf. Some of the miners were able to collect a lot of the copper but after the mines closed and work was very hard to find these collections were sold off to pay bills.
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Post by vegasjames on Dec 14, 2021 4:19:25 GMT -5
I received this in one of Tommy's grab boxes and this little guy shone with a little water...I love the colors I've seen Chrysocolla tossed around here, but just trying to get a positive ID before I do anything with it. The darker blue is azurite. The lighter blue chrysocolla. The lighter green looks like chalcedony veins stained by malachite. The golden area looks like jasper.
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Post by vegasjames on Dec 14, 2021 4:22:47 GMT -5
A slab I cut and had polished as part of a display on copper deposits that will be going to a Geology Department. The lighter blue in this one is the chrysocolla, the greens malachite and the brickish-red is siderite (iron carbonate). Nice material.
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Post by hummingbirdstones on Dec 14, 2021 8:48:13 GMT -5
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