Abstract
In a series of papers dealing with some theoretical determinations of carbonate crystals, Chapman and his collaborators (1) have discussed a number of properties in calcite and magnesite, while later on they extend their work to the carbonates of zinc, iron, manganese and cadmium. They arrive at the general result that throughout the uni-axial series examined by them the CO
3
group remains almost unchanged in size. Their calculations yield a set of unique values for the rhombohedral angle, for which the limits are 101° 55' (calcite), and 103° 28' (calamine). In a similar way, the extremes in the size of the rhombohedral cell are shown by calcite and magnesite. Unfortunately these investigations have not yet embraced the bi-axial carbonates. On the experimental side, Schaefer and his school (2) have recently concluded a systematic study of the absorption spectra of the uni-axial crystals calcite, magnesite, dolomite, chalybite, and of the bi-axial crystals witherite and cerussite between the wave-lengths 1 and 23μ, accessible with prisms of quartz, fluorite, rock-salt and sylvite.
Reference13 articles.
1. Chapman and Ludlam ' Phil. Mag. ' vol. 50 p. 822 (1925)
2. Chapman Topping and Morral ' Roy. Soc. Proc. ' A vol. I l l p. 25 (1926)
3. Lennard-Jones and D en t. *Roy. Soc. Proc. ' A vol. 113 pp. 673 690 (1927).
4. Schaefer Bormuth and Matossi ` Z. f. P hysik ' vol. 39 p. 648 (1926).
5. Coblentz ` Carnegie Publ.' (1905-1908).
Cited by
11 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献