A popular guide to minerals : with chapters on the Bement Collection of minerals in the American Museum of Natural History, and the development of mineralogy (1912)
Gratacap, L. P. (Louis Pope), 1851-1917 · New York : D. Van Nostrand · leaf 82
of the cube (6) give 48 spaces. These are shown ina crystal form in a hexoctahedron (Fig. 31) of w^hich the limitform is obviously the cube. There are other limit forms as therhombicdodecahedron, tetrahexahedron, octahedron, trigonal tri-soctahedron, and tetragonal trisoctahedron, or, all the… … CO unj N o ^ o ^ (J C o •^ U CO NH < O e?l u 23 DEFINITION OF TERMS 51 the basal pinacoid, hexagonal prism of the first order, hexagonalprism of the second order, dihexagonal prism, hexagonal pyramidof the first order, hexagonal pyramid of the second order, or allthe holohedral forms of the…
American Museum of Natural History. Bement Collection of Minerals · Mineralogy
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