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Improving Mindat.orgGreen copper oxides?

20th Aug 2014 17:48 UTCReiner Mielke Expert

http://www.mindat.org/photo-631706.html Caption says "with green copper oxides". More likely annabergite, besides there is no such thing as green copper oxides, they are all black or red.

20th Aug 2014 18:07 UTCUwe Kolitsch Manager

Message sent.

20th Aug 2014 21:25 UTCHendrik van Oss

in economic geology, for better or worse, "copper oxides" refers to any/all actual oxides, hydroxides, carbonates, arsenates, silicates, and the like, that have formed in the so-called oxide zone(s) of the deposit. Essentially everything that is not native copper or copper sulfides, arsenides, and sulfosalts gets labeled as copper oxides on the map and in the field book. They worry about the actual mineral names/IDs when it comes time to designing the mineral processing (recovery) circuits. Ditto for a number of other "oxides' (FeOx, MnOx, et al.)


It certainly greatly simplifies one's mineral collection!


Another term that gets misused in economic geology is "mineralization", which refers to the occurrence of minerals of economic interest only.

20th Aug 2014 21:38 UTCAlfredo Petrov Manager

Some mining industry folk simplify the mineral terminology even more than Hendrik says! Once, as a young collector politely requesting permission to enter a mine, I was asked what I was looking for. After naming a few microscopic rare species, the engineer in charge told me, "Son, as far as I'm concerned, there are only two kinds of rocks. One is called "ore" and the other is called "waste"." So I can easily understand a mine engineer calling anything with Cu and O in it a "copper oxide", including azurite.

21st Aug 2014 01:20 UTCDoug Daniels

That's an engineer for ya.....

21st Aug 2014 11:55 UTCSam Linton

You tend to get that response from most people who work in mines and quarries... it's rock that is worth money or its rock that is not. That's why I usually spend a little time showing them what to look for mineral wise and tell them why those minerals ARE actually worth something, money or educational wise.
 
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