Bluestone and purplestone

I know this is a repetitive topic, but considering the topic of redstone and how complicated it is to create complex mechanisms, I propose an interesting idea... Bluestone only allows you to place it vertically (Y). It can be found in sea caves. Purple stone, on the other hand, can be placed horizontally (X) and vertically (Y). To signal both redstone and bluestone, it can be found very rarely near redstone ore/bluestone ore, or it can be crafted with two redstone and two bluestone.