Rock & Gem October 1976Volume 6 No. 10 Opal cutting simplified; Bola ties, their creation, the master bola designer; Where to rockhound, Shell jewelry, Tourmaline and morganite-best specimen in the world? Magazine Gems, Geology, Rocks & Minerals, Sealife and Shells Rock & Gem Publisher: Miller Magazines Inc. Date Published: October 1976 Checked Out: Yes Checked Out By: Nancy Hainline 25 April 2022 Leave a ReplyCancel reply « Rock & Gem March 1976 » Rock & Gem December 1976