Note 3037 — BOOK XXXVII. THE NATURAL HISTORY OF PRECIOUS STONES.
John Bostock translation
The Beryl and the Emerald are only varieties of the same species, the latter owing its colour to oxide of chrome, the former to oxide of iron.
John Bostock translation
The Beryl and the Emerald are only varieties of the same species, the latter owing its colour to oxide of chrome, the former to oxide of iron.