Diamonds and precious stones, a popular account of gems .. (1874)
Dieulafait, Louis, b. 1830, Sanford, Fanchon, tr · New York, Scribner, Armstrong, and Company · leaf 32
Fig. g.—Terebratula. Fig. lo.—Mammillary Ammonite. and are found in rocks belonging to what has beencalled the primary or palaeozoic period. Those represented by Figs. 7, 8, 9, and 10 ap-pertain to the secondary formations, such as the 12 PRECIOUS STONES. oolite or Jurassic formation, named from…
Precious stones · Diamonds · Gems
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