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 31
unded by twenty-four isosceles triangles, ineight groups of three, and, like the previous form, vary ingeneral aspect from the octahedron on one side, to the*rhombic-dodecahedron on the other. The edges are twelvelonger, corresponding Avith those of the inscribed octahe-dron, and twenty-four…
Precious stones · Building stones · Mineralogy
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![An illustration from Cosmographia Francisci Mavrolyci Messanensis Sicvli : in tres dialogos distincta, in quibus de forma, situ numerʹoq[ue] tam coelorum q[uam] elementorum, alijsq[ue] rebus ad astronomica rudimenta spectantibus satis disseritur (1543)](https://img.insideoutlibrary.com/img/200/ia-cosmographiafran00maur-70-0.webp)
