| 释义 |
kilchoanite Min.|kɪlˈxəʊənaɪt|
[f. Kilchoan, name of the village in the Highlands near which it was first found + -ite1.]
A colourless, orthorhombic polymorph of a calcium silicate, Ca3Si2O7, of which rankinite is another polymorph.
1961Agrell & Gay in Nature 4 Mar. 743/1 A mineral corresponding to phase Z has been found in limestones thermally metamorphosed by gabbro at Ardnamurchan, Scotland, and Carlingford, Eire. It has been named kilchoanite after the village in Ardnamurchan near where it was first found. Ibid., Kilchoanite has always been found as a replacement of rankinite and no crystal form has been observed. 1969Mineral. Mag. XXXVII. 517 Two polymorphs of tricalcium disilicate, rankinite and kilchoanite, have been discovered near Tokatoka, New Zealand. 1969Trans. Brit. Ceramic Soc. LXVIII. 225/1 The morphology of synthetic kilchoanite made at ∼ 200°C, as revealed by transmission electron microscopy, is platy with a characteristic lozenge shape. |