Riosman 17 Posted April 4, 2020 Share Posted April 4, 2020 The rock has iron in it. No Gold There is a pile of it next to a deep hole I'm trying to determine what the green material is. (malachite)? Found 20 mi SE of Quartsite AZ Thanks Ross 1 Quote Link to post Share on other sites
Stillweaver hillbelli 325 Posted April 4, 2020 Share Posted April 4, 2020 23 minutes ago, Riosman said: I'm trying to determine what the green material is. (malachite)? Found 20 mi SE of Quartsite AZ Thanks Ross Malachite would be my guess, too. 1 Quote Link to post Share on other sites
chrisski 856 Posted April 5, 2020 Share Posted April 5, 2020 To me looks like Chrysocolla, a copper ore. This is a chalky looking light green color. Either way, still a green copper ore. My guess is the pile you saw was mined prior to strip mining. The old timers used to be able to run a copper mine taking the ore out on a pack of mules. I took a handful of the green chips, crushed them, and tried to make copper. I was not very successful, just a speck or two out of a handful of ore. Quote Link to post Share on other sites
GotAU? 106 Posted April 6, 2020 Share Posted April 6, 2020 (edited) 23 hours ago, chrisski said: To me looks like Chrysocolla, a copper ore. This is a chalky looking light green color. Either way, still a green copper ore. My guess is the pile you saw was mined prior to strip mining. The old timers used to be able to run a copper mine taking the ore out on a pack of mules. I took a handful of the green chips, crushed them, and tried to make copper. I was not very successful, just a speck or two out of a handful of ore. I think you are right, it’s malachite . This is chrysocolla, often it’s blue like this. We picked some near the Orange Blossom mine, a copper/gold mine east of Barstow. If you break open your samples, you may see fresher unoxidized deposits of it, with deeper colors like this one had which was not as dark blue on the surface due to weathering: If you test this with hydrochloric acid, it decomposes into a gel, and malachite turns into a green solution. Chrysocolla is also softer than malachite, and unlike malachite, will not fuse and turn black when heated. Edited April 6, 2020 by GotAU? 1 Quote Link to post Share on other sites
Riosman 17 Posted April 7, 2020 Author Share Posted April 7, 2020 I have found mines with the walls covered with Chrysocolla ( Blue/ Pale Green) The Blue color matches your picture 1 Quote Link to post Share on other sites
GotAU? 106 Posted April 7, 2020 Share Posted April 7, 2020 (edited) Hope you ran your detector all over them! Edited April 7, 2020 by GotAU? Quote Link to post Share on other sites
Riosman 17 Posted April 11, 2020 Author Share Posted April 11, 2020 Yes I did, not much found 1 Quote Link to post Share on other sites
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