Garnet, a naturally inert mineral, is a sharp, angular, twelve-sided crystal (officially a rhombic dodecahedron), with a hardness of between 7.5 and 8.5 on the Mohs scale (where diamonds, which serve as the benchmark for hardness, rank as a 10).
Garnet crystal’s physical properties make it a superior abrasive, ideal for most industrial applications. Garnet from Barton’s North Creek Mine takes those characteristics one step farther.
The crystalline structure of Barton’s North Creek garnet causes it to fracture into sharp-edged grains while in use. No matter how small they are crushed, the crystals never have a blunt or worn edge.
It is this self-sharpening characteristic that makes this Adirondack deposit the best source of industrial garnet found anywhere in the world.