Click here for a list of every member of the Arizona House Committee of Energy, Environment and Natural Resources.
Along with this list of individuals that should be contacted, is an example of the letter that should be sent.
Print, sign and then mail copies to all of the members on the EENR committee.


Welcome to Mr. Arthur L. Flagg's Mineralogical Society of Arizona!

MSA, along with a Coalition of Rock & Gem Clubs, offer several fun and unique Field Trips throughout the year. We host many interesting Programs & Speakers and you are certain to meet new friends among our Rock and Mineral membership.

Refreshments are served at all MSA meetings and attendees have an exciting opportunity to win Great Mineral Raffle Prizes awarded to one Junior, one Adult, and one Visitor. Members who wear their MSA Name Badges to general meetings are also eligible for an additional raffle.

MSA participates in the annual Flagg Gem and Mineral Show in January, Arizona State Fair and Earth Science Day event in October. We look forward to Exploring, Sharing, and Inspiring your participation in our hobby.

Check out the NEWSLETTER for information on meetings, field trips, and other events of interest to Mineralogists and Rockhounds of all ages.

ALERT!!! Be sure to check out MSA website under MSA CLUB for meeting location and time details. Click here for a printable meeting schedule. Meetings are held the second Thursday of the month, except as noted in the meeting schedule at Franciscan Renewal Center, 5802 E. Lincoln Drive, Scottsdale‎ AZ‎ 85253.

New Meeting Format

Junior Members should arrive by 6:40 PM for Junior Education program starting at 6:45 PM.
All other Members can arrive at 7:00 PM with presentation starting at 7:30 PM.
Meetings are held the second Thursday of the month, except as noted in the meeting schedule.
Brief business meeting and raffle after the program, with Refreshments, Silent Auctions, and Buy/Sell/Trade Event.

Contact us via Email: MSAClub1935@msaaz.org


February 16, 2017 Program: “Collecting in Australia.” Presented by Raymond Grant, PhD.

Our February program speaker is Dr. Ray Grant about “Collecting in Australia.”  The program will feature highlights from years of travel and mineral collecting in Australia.  Mineral Localities in all seven of Australia’s states will be visited, showing the locality and some of the minerals found there. Come hear about mineral collecting, wild animal encounters and other exciting adventures.

Dr. Grant is currently President of Pinal Gem & Mineral Society and Curator of Pinal Geology & Mineral Museum located in Coolidge, Arizona. Ray is on Mineralogical Society of Arizona Board of Governors as recent Past President.


Ayers Rock


ULURU, one of the symbols of Australia; © Ray Grant.




Ray is a 2014 MSA Hall of Famer, MSA Milestone Life Member, MSA President 1976-1977 and 2012-2013, Past Chairman of Flagg Mineral Foundation. He is author of the Checklist of Arizona Minerals, first edition (1982) and second edition (2007) and coauthor with Anthony, Williams, and Bideaux of the Mineralogy of Arizona, third edition (1995). He received his Ph.D.in Geology from Harvard University (1968) and was Professor of Geology at Mesa Community College 1975-2001 and part time 2001-2006.





Mineral of the Month - RHODOCHROSITE
Dr. Raymond Grant

Mineral of the Month for February is rhodochrosite.  It is Manganese carbonate, MnCO3. It is the calcite group so has crystals (hexagonal) and cleavage (rhombohedral) like calcite. The hardness is about 3.5. The main property for identification is the pink to red color, although it can be yellow or brown.

(The following is from Arizona Mineral Collector number 104, The Rockhound Record, November 2007) It is interesting to note that some states become well known for a certain mineral. For example Arizona is known worldwide for wulfenite and Colorado is known for rhodochrosite. A few years ago a program was presented at the New Mexico Mineral Symposium on wulfenite localities of Colorado. It was a stretch to find half dozen localities with small crystals of wulfenite in the state of Colorado. Les Presmyk decided we needed to respond, so the next year we did talk on rhodochrosite in Arizona. The Mineralogy of Arizona lists about 14 rhodochrosite localities in the state and mindat.org has about 24. The best rhodochrosite in Arizona comes from the 2300 level of the Junction mine in Bisbee. The following is a description of this occurrence by Richard Graeme, unpublished manuscript Mineralogy of Bisbee. “This was the most prolific locality for rhodochrosite in the district.  Here it was usually found as massive material in alabandite and associated with sphalerite.  It also rarely occurred as small, pale pink tabular crystals in massive alabandite and as 2 mm. highly modified scalenohedrons in small voids in alabandite.  These voids were usually at the limestone contact with the sulfides.”

Members are invited to bring one sample from their collection of the mineral of the month and give a brief story about where they collected it or something about the specimen.

***Unknown minerals for identification can still be brought to the meetings***


RHODOCROSITE, calcite, quartz, tetrahedrite. “The Alma Rose,” 46.5cm, Sweet Home Mine, Alma, Park County, Colorado, USA; Rice Museum of Rocks & Minerals Collection; © Jeff Scovil.

ALMA ROSE & SHARLEEN HARVEY, Rice Museum Co-Founder & Mineralogical Society of Arizona Member; © Chris Whitney-Smith.

Other localities of interest include the Magma mine in Superior with rare small pale pink to red crystals found in the South Vein. Nodules of iron oxide and rhodochrosite are reported from the Chinle Formation in Antelope Valley near St. Johns, Apache County. It was found at the Trench mine in Santa Cruz County, the Lucky Cuss mine in Tombstone, and the Humbolt mine in the Chiricahua Mountains. The Humbolt mine is the only place that I have collected rhodochrosite in Arizona.

Finally, a four-foot wide rhodochrosite vein is reported at a depth of 120 feet in the shaft of the London Range mine in the Banner district, Gila County. Unfortunately, the exact location of this mine and the rhodochrosite vein are not known. Harvey Jong who specializes in collecting rhodochrosite and I have been trying to locate the mine. From old reports we think it must be near the Finch (Barking Spider) mine and perhaps has been filled it. There is no rhodochrosite that we have been able to find in that area, but there is a lot of thulite, the pink variety of zoisite, which has a color exactly like rhodochrosite. It forms as a metamorphic mineral and could replace a limestone bed and look like a vein, so my conclusion is that the four-foot wide vein was really thulite.





Visiting Mineralogists & Rockhounds, please get in touch with us!

Trade Minerals
Members please feel free to bring minerals for trade to next MSA meeting.

The Rules of Etiquette
From Rockhound Record 1942

At the risk of seeming impertinent, exhibitors of minerals will provide good insurance to specimens if they will display, in a prominent place on their exhibit, the rules of etiquette:

1. Never pick up a piece of material unless it is handed to you by the owner.

2. Always handle carefully – as many specimens are valuable and cannot be replaced.

3. If you cannot see the specimen well, ask the owner to show it to you.

Membership Dues are Due!

Please pay at the next meeting or mail to Mineralogical Society of Arizona, 5533 E. Bell Road Suite 101, Scottsdale, AZ 85254.
Membership form & dues amounts are on website under MSA CLUB tab.

arizona, minerals, rock collecting clubs

New MSA Commemorative Pin

Designed by Chris Whitney-Smith, one of our members, in commemoration of MSA's 75th Anniversary in 2010. 

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Mineralogical Society of Arizona
5533 E. Bell Road
Suite 101
Scottsdale, AZ 85254

Member of the Rocky Mountain Federation of Mineralogical Societies
Member of the American Federation of Mineralogical Societies

Last Modified August 20, 2016 by Ron Ginn


Mineral logo photo courtesy of Jeff Scovil.

website by Rock Dog

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