PROCEEDS BENEFIT "REACH INC."-EMPOWERING ADULTS WITH DISABILITIES
http://www.reachinc.org
-Southern Science Specialists - Chapel Hill, North Carolina-
Mineral Crystal Systems
Mineral crystal system tutorial and lab starts with cut, paste, and identification crystal system images. Crystal systems include: isometric (cube and octahedron), tetragonal (tetragonal prism, dipyramid, and pyramid with prism), hexagonal (dypyramid, prism, and rhombohedron), orthorhombic (rhombic prism), monoclinic (m