The structure of rankinite

1 January 1975

journal article
Published by Japan Association of Mineralogical Sciences in Mineralogical Journal

Vol. 8 (1) , 38-47
https://doi.org/10.2465/minerj.8.38

Abstract

The crystal structure of rankinite has been determined by Patterson and direct methods and refined to R=11.6%, using a crystal from Fuka, Bitchu-cho, Japan: P2t1a, a 10.60(2), b 8.92(2), c 7.89(2)A, f3 119.6(1)', Z = 4 Ca3Si207. There are in the structure arrays of Si207 groups parallel to the c axis, and the groups are linked together by Ca's each having seven near oxygen atoms: the Ca-O bond length in the structure is in the range from 2.25 to 2.90 A. Si-O is from 1.52 to 1.65 A. The structural re- lationships between rankinite (Ca3Si207) and kilchoanite CCa6(SiO.) (Sis010) J are described briefly.

Keywords

This publication has 3 references indexed in Scilit:

The crystal structure of kilchoanite, Ca₆(SiO₄)(Si₃O₁₀), with some comments on related phases
Mineralogical Magazine, 1971
Rankinite and kilehoanite from Tokatoka, New Zealand
Mineralogical Magazine, 1969
Kilchoanite, a Polymorph of Rankinite
Nature, 1961