[3241] “Acorn stone.” Like an olive in appearance, and now known as “Jew stone,” probably, a fossil.
[3242] “Frog-stone.” Varieties of quartz, probably.
[3243] “Dipped stone.” Dalechamps says that it was amber stained with alkanet, but on what authority does not appear.
[3244] “Eye of Belus.” Supposed by Ajasson and Desfontaines to be Cat’s eye Chalcedony. See Chapter 50, Note [3196].
[3245] Belus, the father of Ninus, the “Bel” of Scripture. See Chapter [58].
[3246] A kind of Tecolithos, Dalechamps says. See B. xxxvi. c. [35], and Chapter [68] of this Book.
[3247] “Grape-cluster stone.”
[3248] “Puniceus” seems to be a preferable reading to “pampineus,” “like a vine-tendril,” given by the Bamberg MS.
[3249] Possibly it may have been Datholite or Borate of lime, a variety of which is known as Botryolite.
[3250] “Hair-stone.” This was probably either Iron alum, known also as Alun de plume; Alunogen, known also as Feather Alum or hair salt; or Amianthus, also called satin Asbestus. See B. xxxvi. c. [31].