[Rockhounds] Talks about origin and mineralogy of gem-bearing pegmatites

[Paul]

Below are some talks on gem-bearing pegmatites

Spectacular Gem Crystals: Pegmatite Pocket Formation and Survival
Tom Campbell, Staff Mineralogist, The Arkenstone, Oct. 4, 2019
https://www.youtube.com/watch?v=SS50-WzOjvg
https://www.youtube.com/channel/UCIqF4IlVr75GZMROmG3myEA

Granitic pegmatites Formation and mining
by Mark Jacobson, Retired Chevron Corporation, June 6, 2016
https://www.youtube.com/watch?v=1hDp9Bizq78
https://www.youtube.com/channel/UCIqF4IlVr75GZMROmG3myEA

Pegmatites: An Update on Recent Production
Peter Lyckberg, 2018 GIA International Gemological Symposium
https://www.youtube.com/watch?v=jDpIKxWoq2M

Yours,

Paul H.