This is a Scottish Jasper crystal from Ayrshire, you can tell from that strange marbled red and yellow. These pieces are a nice example of Scottish jasper and how it comes in bold colours. 
We will count the two smaller pieces as one lot.
Scottish jasper was a favourite healing crystal of the Victorians, who put it into lots of silver jewellery. In particular they favoured Scottish Jasper for its rich variations in colour. 
These jasper crystals went through all the polishing stages to create a lovely shine. I had to tumble them, much of the jasper is too round to hand polish and the wrong size for cutting and slabbing.
Remember to read about Scottish Jasper on our Rock Blog.