"Hocus Pocus or Proven Segula?: Precious Stones" - Part II

Parshablog notes that Shabbos 66b contains a teaching that relates to my posting Hocus Pocus or Proven Segula?: Precious Stones

Also, Kallah Magazine writes, "R’ Bachaya on the Torah is one of the sources for the perceived potency of gemstones."

(Picture courtesy of E-Daf.com)