Rbberite

Rbberite is a streaky septagonal light grey crystal which glows dimly. Rbberite's properties are mostly mundane but augmented with natural magic and is uniquly useful in stone cutting and masonry. Rbberite was first discovered by the priest Tshêtco nis Ramose within the Sèkê-bêg̈i Woods in time immemorial. Tshêtco nis Ramose's discover was believed to have occured some time durring the late 6th century.