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 72
te, haematite, and otherrliombohedric minerals. In calc-spar they often form veryregular crystals, the two individuals uniting by a planeparallel to the base, so as to appear like a single crystal, asin fig. 78, where each end shows the forms ooR. —| R, butin a complementary position; or in fig. 79…
Precious stones · Building stones · Mineralogy
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