swinefordite

certainty of origin : Cotype (used for additional information).

author(s) : Tien, Leavens and Nelen

date of publication : 1975

source : Am.Min.(60) p.540-547

formula : (Li,Ca,Na)(Al,Li,Mg)4 (Si,Al)8 O20(OH,F)4

comments about the origin : etiquette U.S.N.M. No126826 ech.Smithsonian 1975

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This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.

(C) BRGM, ENSMP

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