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PhotosPOTD 2/13/20
13th Feb 2020 16:34 UTCDon Saathoff Expert
Don
13th Feb 2020 20:40 UTCRalph S Bottrill 🌟 Manager
13th Feb 2020 21:45 UTCMichael Hatskel
Probably by alteration of the rounded predecessor which transformed into the porous mass of chalotrichite.
Note that the quartz crystals show no sign of iron or copper stain or any ocherous coating. There are few chalotrichite needles close by on the surrounding quartz, but otherwise the quartz is pristine.
Also interesting that there is chalcotrichite on one of the green conichalcite globules in the upper left corner. So the chalcotrichite post-dates the conichalcite.
Look forward to the comments from the Clara mine specialists.
13th Feb 2020 21:53 UTCRichard Gunter Expert
14th Feb 2020 00:13 UTCDon Saathoff Expert
Don
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