Mur

A lightly green tined stone that can be worked with little difficulty and is mostly air tight. It is mined under the village of Murcast.
This stone is used in most building of Murcast and of Stillhorn.
The people that mold the mur are called murcasaters. They have a wide variety of applications. From just regular building blocks to cups and vases. Although a thin layer of it will be leaking a tiny bit if it has a bit more width to it, it will be able to hold water and alike without it leaking out. Some people can sell the Mur to tourists and alike with a too thin width of mur resulating in a good and slim looking lightly tined green cup/vase however it won't be able to be functional.