Post by
Wangotango67 on Nov 09, 2021 10:59am
COSALITE + COVELLITE
These two minerals appear to be the most tricky of, coppers.
Covellite can appear as, grey copper.
But what about coselite ?
Formula - Pb2Bi2S5 ( lead, bismuth, sulphur )
Yet, this information is also tied to coselite.
EXCERT -
Appears to contain Cu and Ag as apparently essential constituents, according to Clark (1993) ("Hey's Mineral Index") and Zak et al. (1992) and the detailed study of Topa & Makovicky (2010). The latter propose the general formula CuxAgi+sPb8-2s-0.5(x+i)Bi8+sS20; they state: cosalite is "a unique case of solid-solution based on a combined omission-interstitial insertion substitution".
Suddenly, silver shows itself in the coselite and copper is now in the mix.
Could more copper be hiding in - silver, bismuth, lead, or other minerals than what is known ?
Good questions to ask...
And sadly, the only answers to correctly solve this would be found - after the mineral is mined - and smelted. Here is where the payables would tell the whole story.
But.. that's a road travelled well beyond any common investor is willing to walk.
Most miners sell a copper concentrate.. .and thats a tricky subject as well....
Selling cons with all sorts of other minerals and on the flip side, the one who smelts
is the one who truly knows the whole story of payable mineral credits.
That's right... i'm not a fan of, concentrates.
Wink.
.
Take a look at these " coselite " photos....
I would say... even the best of the best geologists wouldn't be able to detect - copper.
Which brings into question, should all copper juniors take those extra measures and perform
all the more tests to ensure high scrutiny - assaying ?
ACE CLAIMS ?
MCBRIDE ?
Let's see those - 709m of cores -
Upclose photos.... Please and thank you..
https://www.mindat.org/min-1139.html
Comment by
KozmoT on Nov 09, 2021 11:54am
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