Like other towns in the County, Mint Hill has changed a lot in recent years. Instead of having to go elsewhere to dine out, shop or work, Mint Hill has many options these days. I once worked in Mint Hill, and got to know the town and its people well.
Limestone is a sedimentary rock that is composed primarily of calcite. It forms from both the chemical precipitation of calcium carbonate and the transformation of shell, coral, fecal and algal debris into calcite during diagenesis.
Slate is a metamorphic rock. Metamorphic rocks are rocks that change form from one type of rock into another because of time, pressure, heat and other factors. Other metamorphic rocks include slate, shale, schist, gneiss and marble. The new form of a rock is determined by the composition of the original rock. Shale doesn't automatically turn into slate.