FERRIERITE-Na (Na,Mg0.5,K)6Al6Si30O72·8H2O (orthorhombic) . zeolite group . opaque white crystalline spherical . Altoona, Wahkiakum County, Washington . 由眾多細小結晶集結如棉花球狀，硬度３，為罕見的沸石類礦物．
礦名來源：Named for Walter Frederick Ferrier (1865-1950), Canadian geologist and mining engineer.

經典名礦欣賞 ．２
NO.249