VESUVIANITE Ca10Mg2Al4(SiO4)5(Si2O7)2(OH)4 (tetragonal) . Reddish purpur crystals flat-lying on rock . Asbesto,Quebec,Canada . 符山石屬正方晶系，稜柱狀，玻璃光澤．硬度６. 5．有平行於長軸的縱紋，綠色較為常見．其它為黃，棕，藍，紫色．產於石灰岩被火成岩侵入的接觸帶，為寶石級的礦物。礦名源於 the volcano, Mt Vesuvius．

著名產地：Asbestos, Quebec, Canada; California and Mt Vesuvius, Italy; Ural Mountains, Russia .

經典名礦欣賞．２
NO.639