- achtaragdite
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ахтарандит
English-Russian dictionary of geology. 2011.
English-Russian dictionary of geology. 2011.
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 … Useful english dictionary