As requested by @[email protected] – post pictures of rocks. We will try to identify them.
Note that copy/pasting pictures works in the comment field, assuming you’re on the website. How it works in the multitude of apps – dunno ;)
As requested by @[email protected] – post pictures of rocks. We will try to identify them.
Note that copy/pasting pictures works in the comment field, assuming you’re on the website. How it works in the multitude of apps – dunno ;)
You’re absolutely right that it is copper porphyry ore (from an abandoned historical artisanal mine). However, I don’t have the sample and cannot perform the tests beyond that point. Just wanted to kick-start the thread :)
I would have called it malachite, maybe it effervesces due to some carbonate in the rock? Whip out your portable XRD!
Yeah, almost certainly malachite. :)
Oh, a pop quiz! I will try to post one too from a computer later.