40mm Blue Slate (Bulk Bag c. 800kg)

This is a crushed material manufactured from the spoil heaps which have accumulated over the years in the slate mines. Slate is a metamorphic rock which is made of a combination of minerals including quartz. It is a very hard material and stands up to the elements well. It can be used for landscaping projects, mulch, paths and drives. The material is also inert, so it is safe for use around water features and will not alter the pH value of the water. The material is flat which means it’s ideal for covering large areas easily and is not prone to moving around like some of the more-rounded gravels.