Mineral: Calcite
Locality: China
Dimensions: 7, 4.5 and 4 cm in edges, 10 cm of maximum length.

Description: Discontinuity crosses lateral faces running parallel to short rhombohedral edge. Here angle between faces at one and another side of the edge is smaller, about 1.5º (+/- 0.2º) In accord with position of discontinuity edge relative to rhombohedron {101} faces, discontinuity seems occur in a plane close to (110).

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