input: [0] Colorless to White or Greyish-white, may be tinted other colors [1] 3 to 3½ [3] ANHYDRITE CaSO4 [4] Orthorhombic [5] usually in coarsely crystalline masses exhibiting a pseudo-cubic cleavage, or in granular masses with no cleavage apparent, crystals rare and usually equant or thick tabular [6] 2.9 to 2.98 [2] 
output: vitreous and/or pearly