I found a good piece of pink baryte in a pipe working underground last year - it has yellow coxcombs interspersed, and clear/cloudy crystals of some other mineral scattered even more sparsely, but I have no idea what they are. It's very heavy indeed, and is about 10cm X 7cm X 5cm. The odd thing is it's the only piece I've seen in there - none in the walls, on the floor, anywhere - just this one piece buried in floor-sand. Last week I found another piece of vein mineral that has a similar waxy/soapy surface to it, as the piece pictured above, and some of it is certainly baryte, but there seems to be another greyish crystalline mineral I don't recognise. I'll try photographing it close-up to see if it's any more revealing.