. Precious stones, a popular account of their characters, occurrence and applications, with an introduction to their determination, for mineralogists, lapidaries, jewellers, etc. With an appendix on pearls and coral. Precious stones; Pearls; Corals. 156 SYSTEMATIC DESCRIPTION OF PRECIOUS STONES Bahia, which came into special prominence in the later decades of the'nineteenth century. The yield of other States, compared with that of the two above mentioned, is unimportant, but all are as yet too little explored to permit of a final opinion as to their Fig. 34. Diamond-fields of Br
. Precious stones, a popular account of their characters, occurrence and applications, with an introduction to their determination, for mineralogists, lapidaries, jewellers, etc. With an appendix on pearls and coral. Precious stones; Pearls; Corals. 156 SYSTEMATIC DESCRIPTION OF PRECIOUS STONES Bahia, which came into special prominence in the later decades of the'nineteenth century. The yield of other States, compared with that of the two above mentioned, is unimportant, but all are as yet too little explored to permit of a final opinion as to their Fig. 34. Diamond-fields of Brazil. (Scale, 1 : 10,000,000). Minas Geraes and Bahia are, however, the only States of commercial importance in respect to the amount and continuity of their production of diamonds, it being doubtful whether stones are found in anything but insignificant numbers in other States. The important diamond-bearing districts of Minas Geraes and Bahia are shown in the accompanying map (Fig. 34) taken from Boutan. It is proposed now to deal with Brazilian occurrences, taking the different States in the order of their relative importance, and treating. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bauer, Max, 1844-1917; Spencer, Leonard James, 1870- tr. London, C. Griffin and Company, Ltd.
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