THOMSONITE NaCa2Al5Si5O20·6H2O (orthorhombic) . radiating lamellar,spherules,pearly white translucent in basalt . Oregon, USA . 白色球狀結晶長在玄武岩的間隙,為沸石類少見之礦．常見針狀放射狀或可愛的小球狀．硬度 5 - 5.5 ，其針狀與鈉沸石不易區分．主要產地∼Saxony, Germany; Italy; Faroe Islands; Kilpatrick Hills, Scotland and Kern Co., California and Cape Lookout, Oregon, USA.
本礦外觀似佛珠又像舍利子， 見者有福矣！
礦名來源：Named after the Scottish chemist, T. Thomson (1773-1852). 常見

經典名礦欣賞 ．２．３．４．５
NO.59