achtaragdite Min.
(ɑːxtəˈrægdaɪt)
[f. Achtaragda a Russian river + -ite min. formative.]
An earthy hydrous aluminous silicate, considered by Dana a doubtful species, and placed in his appendix to clays.
achtaragdite Min.
(ɑːxtəˈrægdaɪt)
[f. Achtaragda a Russian river + -ite min. formative.]
An earthy hydrous aluminous silicate, considered by Dana a doubtful species, and placed in his appendix to clays.
Oxford English Dictionary