BORACITE Mg3B7O13Cl (orthorhombic) . Pale green crystals in matrix . Sonderhausen, Thuringen, Germany . 方硼石晶體常見六面，八面，圓粒等軸狀，硬度７，色彩有白，灰，黃，綠， 藍等，玻璃光澤，具強烈熱電性．

經典名礦欣賞．２．３．４．５．６．７
NO.370