Learn Something New

Click a photo below to view presentation slides

Have a topic or presentation to share? Write us at [email protected].

Pictured Rocks National Lakeshore -- Presentation by Pete Dohms

Pictured Rocks National Lakeshore Thumb

Roadcut Geology -- Presentation by Becky & Larry Bagshaw

Angular Conformity in Volcanic Ash

Gila County Geology -- Presentation by Barry Jones

Tonto Natural Bridge Pine Creek Reflections

Rocky Topics

Dendritic Patterns

Dendrites 3Smudges do not count! Dendritic patterns must show a clear fern or tree like pattern.

For more information on dendrites and much, much more, Lynne Wheeler highly recommends:

Collecting Rocks, Gems and Minerals
by Patti Polk

ISBN-13:978-1-4402-0415-90
Lynne has found this to be an excellent resource for all rockhounds, especially in Arizona.

Sonoranite — The World’s Newest Gemstone

Sonoranite Photo by Lynne WheelerWhile in Tucson last week members Lynne Wheeler and Peggy Randall had a fascinating conversation with the folks at https://sonoranite.com

You can see from the photo that Lynne took and from the gorgeous jewelry shown on the Sonoranite website, this Arizona desert gemstone is an incredible find!

Photos on this page thanks to Rimstones Rock Club members Lynne Wheeler, Barry Jones, Pete Dohms and
Becky & Larry Bagshaw.