Tourmaline
Abrasion index 0.48 mm
Water absorption .0.09%
Specific gravity 3,031 kg/cu.m
Compressive strength 243.28 MPa
Modulus of rupture 27.37 MPa
This Stone of the Month supplied by Brasvit Granitos, Vitória, Espírito Santo, Brazil. Technical Details provide a frame of reference only. Because stone is a product of nature, testing to determine specific physical qualities should be repeated for each project. To submit your own Stone of the Month, send a transparency or an 8- x 10-inch or larger print of any stone material along with ASTM results to Stone of the Month, Stone World, 210 Route 4 East, Suite 203, Paramus, NJ 07652.
