This is a very heavy rock containing three copper minerals: the green one, malachite, a black one, and a reddish-pinkish-purplish one. Large blue squares in the background are centimeters.
A close-up view of said minerals. The little orange bits - which I have to throw in for Alaska Al, who says he isn't from the green part of Ireland - are probably a goethitic Fe-oxide.
Here's the backside of a rock, where some of the malachite crystals can be seen a bit more readily. The bright reddish orange may be a mix of goethite and some other oxide mineral, except for the lower orangey blob, which is part of my finger. The faintly bluish mineral in the bottom center might be chrysocolla.
[How can you tell which side is the frontside or backside of a rock? Simple, the frontside is either the first side you look at, or it's the side facing up when the rock is on the ground or on your display counter. The backside is the other side.]
What are the sooty black and the shiny reddish-pinkish-purplish minerals?