travelingsoul
off to a rocking start
Member since September 2021
Posts: 20
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Post by travelingsoul on Oct 10, 2021 1:05:09 GMT -5
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Post by mohs on Oct 10, 2021 10:52:55 GMT -5
could be some type of copper derivative maybe even malachite what that crust like solid ?
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Post by rockhoundingwithkids on Oct 10, 2021 11:02:23 GMT -5
Soap water and a toothbrush are a great start. I prefer nylon brushes of different sizes. The audobon field guide to rocks and minerals is a great companion to keep in the car. The copper minerals are a great example for how minerals leach into their surroundings. Sometime's they're surface "frauds" and aren't actually solid material through and through. This happens with other minerals too but the blues and greens get a lot of attention.
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travelingsoul
off to a rocking start
Member since September 2021
Posts: 20
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Post by travelingsoul on Oct 10, 2021 11:05:16 GMT -5
could be some type of copper derivative maybe even malachite what that crust like solid ? The crust is solid.
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travelingsoul
off to a rocking start
Member since September 2021
Posts: 20
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Post by travelingsoul on Oct 10, 2021 11:08:19 GMT -5
Soap water and a toothbrush are a great start. I prefer nylon brushes of different sizes. The audobon field guide to rocks and minerals is a great companion to keep in the car. The copper minerals are a great example for how minerals leach into their surroundings. Sometime's they're surface "frauds" and aren't actually solid material through and through. This happens with other minerals too but the blues and greens get a lot of attention. Very interesting, and it makes a lot of sense! I’m definitely going to look into that guide. Would there be multiple other rocks with surface areas of green/copper mineral? The only way to know would be to cut it open?
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Post by rockhoundingwithkids on Oct 10, 2021 11:14:13 GMT -5
I think it just depends on the location. In NV there are many old mines that you can have a great day playing in the tailings. The NV Rockhound Guide can lead you to those. Cold Springs is one of the popular spots. Definitely be careful going through the tailings -broken bottles, trash- rusty nails, rusty metal pieces and snakes. Not a bad idea to wear gardening gloves. We've also come across some mine shafts in other areas that were not properly closed off.
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travelingsoul
off to a rocking start
Member since September 2021
Posts: 20
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Post by travelingsoul on Oct 10, 2021 11:22:09 GMT -5
I think it just depends on the location. In NV there are many old mines that you can have a great day playing in the tailings. The NV Rockhound Guide can lead you to those. Cold Springs is one of the popular spots. Definitely be careful going through the tailings -broken bottles, trash- rusty nails, rusty metal pieces and snakes. Not a bad idea to wear gardening gloves. We've also come across some mine shafts in other areas that were not properly closed off. I’ve heard/read about Cold Springs. I’m not that far from there. I’m in the Carson City area. I always have gloves in the car always. I’m extremely cautious of snakes, mostly because I don’t want to run into a rattler lol I’m going to get the NV Rockhound Guide even though I’ll probably be relocating to California in the near future. This is a new fun past time. Thank you very much for the tips and information. I’m thinking I may go for a drive up north maybe.
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Post by rockhoundingwithkids on Oct 10, 2021 11:24:38 GMT -5
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Post by rockhoundingwithkids on Oct 10, 2021 11:25:39 GMT -5
No matter what state you're in there's always something to find! Happy hunting!
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travelingsoul
off to a rocking start
Member since September 2021
Posts: 20
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Post by travelingsoul on Oct 10, 2021 11:30:51 GMT -5
Absolutely beautiful, I want to go up there. I think I’ll drive up there. Is it very difficult to find? I think rocks are pretty cool, always have, but I just started really wanting to learn about them. I found a really big Jasper in the tide pools of Bodega Bay about a month ago.
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Post by rmf on Oct 10, 2021 11:38:49 GMT -5
As @mohs said that color is malachite. Different copper oxidation states cause different colors. Also, what they attach to does as well. Cu₂CO₃(OH)₂ -- Malachite (Green) Cu3CO₃(OH)₂ -- Azurite (Blue) Cu₂H₂Si₂O₅(OH) -- Chryscolla (blue-green) . . .
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Post by mohs on Oct 10, 2021 11:45:18 GMT -5
not sure what I was meaning by the crust just wondering if pyrite was in it
some overly weathered (or not compactly formed/chrystalized) chryscholla is powdery
in example can it be picked at with a steel pin that may be an indicative test
not possible with a jasper obviously...
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Post by mohs on Oct 10, 2021 12:04:41 GMT -5
I’m working a tailing of copper derivative rocks Picked out some of the chys from the matrix Some of the male chunks have speckles of pyrite in them My just taken -shaky hand macro- may show that ha there a fairly visible speck of gold gleam at the top of the right rock
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