MEIONITE 3CaAl2Si2O8·CaCO3 (tetragonal) . translucent white prismatic crystals . Naples, Campania, Italy . 鈣柱石晶體常見柱狀無色透明，玻璃光澤，硬度 5.5~6．發生於區域變質岩， 火成岩，火山噴出物中．

經典名礦欣賞．２．３．４
NO.358