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Identity Helpfrom Katanga: malachite or brochantite?

7th Nov 2017 23:57 GMTTony Peterson Expert

I see an active auction for a brochantite from Katanga (locale given as Likasi Mine); specimen is IDENTICAL to one I have long possessed, purchased as malachite (precise site uncertain):

Katanga photos here on Mindat show nothing else comparable. Does anyone know the exact location of this material, and the correct species?


8th Nov 2017 09:15 GMTKeith Compton Manager

Hi Tony

You may want to refer to a previous Mindat thread for a means of distinguishing the two:



8th Nov 2017 09:17 GMTPaul De Bondt Manager

Hi Tony,

Thank you for your question.

This looks like malachite to me. Malachite can come in so much shades of green in Katanga.

Almost sure not from Likasi.

The Likasi specimens are mainly on massive cuprite.

The matrix shows it's probably from the Kambove area.

M'sesa is a good candidate. VERY difficult to give a precise location. Sorry.



8th Nov 2017 20:21 GMTTony Peterson Expert

Many thanks!
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