Advice please. Malachite and Azurite

[Dray01]

Hello. I’m trying to find out how and if I should clean these up. I’ve had them put away for 15+ years because they are big and not too esthetically appealing as is.

 

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[NJearthman]

No need to clean. They look perfect as is. Those minerals are very soft and scrubbing them may do more harm then good.