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Crystal data for phosphophyllite, Zn 2 Fe(PO 4 ) 2 .4H 2 O
Author(s) -
Hill R. J.
Publication year - 1976
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889876012028
Subject(s) - crystal (programming language) , chemistry , x ray crystallography , crystal structure , crystallography , mineralogy , materials science , physics , diffraction , computer science , programming language , optics
Chemical, optical and X‐ray data are reported for an Fe‐end‐member phosphophyllite from Potosi, Bolivia. The unit cell is monoclinic P 2 1 / c , a = 10.378 (3), b = 5.084 (1), c = 10.553 (3) Å, β = 121.14(2)°, Z =2. Refractive indices (±0.0002) for Na light are α = 1.5994, β = 1.6167, γ = 1.6198, 2 V x = 44.3 (4)°