Note 3345 — BOOK XXXVII. THE NATURAL HISTORY OF PRECIOUS STONES. (continued 2)
John Bostock translation
“Idæan fingers.” These were probably Belemnites, so called from their long, tapering shape, and being first observed, perhaps, on Mount Ida in Crete. Belemnites are the shells of fossil Cephalopods, and are commonly known as “thunder stones.”