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Figure 1
The olivine structure in the z = 0 plane. a, b: orthorhombic cell parameters; s1,xy: projection of O3—O3′ stalk of centrosymmetric (M1)O6 octahedron in plane; t1: tie-line between stalk projections; ϕ1, ϕ2: angles of stalk projection or tie-line to the y-axis; (+, −): deviation of oxygen ion z-coordinates out of plane; JK, LM: b glide planes at x = ¼,¾.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 73| Part 1| February 2017| Pages 74-86
https://doi.org/10.1107/S2052520616018308
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