Brucite is the mineral form of magnesium hydroxide, with the chemical formula Mg(OH)2. It is pearly white or pale green in colour, translucent, with perfect cleavage, and tabular crystals or massive. It has a hardness of 2.5. Brucite is often found in hydothermal veins in serpentine . Most notable locations include Wood's Chrome Mine, Cedar Hill Quarry, Lancaster County, Pennsylvania.
