About Samoilov's rule for quartz crystals
Authors:
Abstract
Examining quartz crystals from western North Carolina, A. Gill noted differences in a number of sharp rhombohedra under the faces of the positive {1011} and negative {0111} rhombohedra.
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References
- Samoilov Ya. V. Mineralogy of vein deposits of the Nagolny Kryazh (Donetsk basin). In the Materials for Geology of Russia, vol. 23, 1908.
- Shafranovsky I. I. Crystals of minerals. Curved, skeletal and granular forms. Geolizdat, 1961.
- Shubnikovs A. V. and O. V. Statistical study of vicinales of the alum octahedron. Proc. Miner, Museum of the AS USSR, vol. 1, 1926.
- Gill A. C. Krystallographie, Bd. 22, 1891.