Flagstone
Flagstone is a type of flat stone, usually used for
paving slabs, but also for making fences or roofing. It may also be used
for making memorials or headstones in a cemetery. Flagstone is a
sandstone which makes the rock essentially quartz. The material that
binds flagstone is usually composed of silica, calcium, or iron oxide.
The color of the rock usually comes from the cementing material. Typical
colors of flagstone are red, blue, buff, and there are exotic colors
like chocolate. It is often used for patios, walkways, steps, fences,
housing, fireplaces, and many construction projects. For our purposes we
will refer to all random paving stones as flagstones and will be
inclusive of sandstone, slate and quartzite products.