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A popular treatise on gems, in reference to their scientific value; a guide for the teacher of natural sciences, the jeweller, and amateur: together with a description of the elements of mineralogy, and all ornamental and architectural materials .. (1859)

Feuchtwanger, Lewis. [from old catalog] · New York, D. Appleton & company · leaf 40

An illustration from A popular treatise on gems, in reference to their scientific value; a guide for the teacher of natural sciences, the jeweller, and amateur: together with a description of the elements of mineralogy, and all ornamental and architectural materials .., 1859, leaf 40
Fiff. 18. Fig. 19. by the faces of the rhombic-dodecahedron, the sign being00 O 00 . 00 O; while in fig. 19 there is the same combina-tion, but with the faces of the cube subordinate, and hencethe symbol is coO . ooOoo . The former figure, it will -beseen, has more the general aspect of the cube;…

Precious stones · Building stones · Mineralogy

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