afghanite

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

author(s) : Bariand, Cesbron and Giraud

date of publication : 1968

source : Bull.Soc.Fr.Min.Crist.(91) p.34-42

formula : (Na,Ca,K)12 (Si,Al)16 O34(Cl,SO4,CO3)4 O,6H2O

comments about the origin : Sorbonne, 1967

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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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