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New Mexico Mineral Symposium

flourite on quartz
Photo by Jeff Scovil
Fluorite on quartz, Pine Canyon deposit, Burro Mountains District, Grant Co., NM. Gift of Gary & Priscilla Young.

41stAnnual Symposium — November 12-14, 2021
Macey Center
New Mexico Institute of Mining & Technology
Socorro, New Mexico

[view map]

A PDF version of this announcement is also available.

The New Mexico Mineral Symposium provides a forum for both professionals and amateurs interested in mineralogy. The meeting allows all to share their cumulative knowledge of mineral occurrences and provides stimulus for mineralogical studies and new mineral discoveries. In addition, the informal atmosphere encourages intimate discussions among all interested in mineralogy and associated fields.

This year's symposium will consist of a day and a half of formal papers presented in 30-minute time blocks. Papers will focus on mineral occurrences from New Mexico and adjacent states, as well as Mexico. A few selected papers may be presented from other parts of the world. An informal pre-symposium social and tailgating session will be held at local motels beginning on Friday, November 12, 2021, and will last through the weekend.

Wulfenite on malachite
Photo by Virgil Lueth
Wulfenite on malachite, Graphic Mine, Magdalena District, Socorro Co., NM.

The Mineral Symposium is organized each year by the Mineral Museum at the New Mexico Bureau of Geology and Mineral Resources.

Sponsors this year include:

  • Albuquerque Gem and Mineral Club
  • Chaparral Rockhounds
  • Los Alamos Geological Society
  • New Mexico Geological Society Foundation
  • Friends of Mineralogy
  • City of Socorro
  • Grant County Rolling Stones
  • Friends of Mineralogy — Colorado Chapter

Featured Speaker:

4 corners minerals
Photo by Kelsey McNamara
Barite, Day Tunnel, Pelican Mine, Hermosa District, Sierra Co., NM.

Dr. Jeffrey E. Post — Smithsonian Institution

Dr. Jeffrey E. Post received BS degrees in geology and chemistry from the University of Wisconsin-Platteville, and his Ph.D. in chemistry, with a specialty in geochemistry, from Arizona State University. Prior to joining the Department of Mineral Sciences at the Smithsonian Institution in 1984, he was a Postdoc Research Fellow for three years in the Harvard University Geological Sciences Dept. He was Chairman of the Dept. of Mineral Sciences 1989-1994 and 2014-2019, and since 1991 has served as Curator of the U.S. National Gem and Mineral Collection. Dr. Post was the lead Curator for the Janet Annenberg Hooker Hall of Geology, Gems and Minerals that opened in 1997.

His areas of research interest include mineralogy, gemology, and geochemistry. He has published more than 125 scientific articles in these fields. He is the author of The National Gem Collection, and the recently published: The Smithsonian National Gem Collection — Unearthed: Surprising Stories Behind the Jewels.

map of Socorro

Field Trip: Copper Flat Mine

The Copper Flat mine is a porphyry copper/breccia pipe deposit located west of Truth or Consequences, approximately 100 miles south and west of Socorro (driving time 1.5 hours). We will be able to collect at the open pit and surrounding rock piles, as well as set up some gold panning in the creek. Directions: From I-25, take exit 63 for Hillsboro and head west on Hwy 152. Turn at the Themac Copper Flat sign and follow dirt road to the gate, keeping to the right. Do not cross the creek. Everyone will have to sign a company waiver. Please RSVP to Virginia McLemore ( Bring lunch, water, and digging tools. Meet at the gate to the mine at 9 am.

Friends of the Mineral Museum Reception — Friday, November 12th

A Friends of the Mineral Museum reception will be held at the museum on Friday, November 12th from 5-7 pm. An informal tailgating session will be held at local motels beginning on Friday and will last through the weekend. You can join the “Friends” group at the reception with a donation of $25 or more.


At 6:30 p.m. on Saturday, November 13th, a silent auction and Dinner will be followed by a voice auction to benefit the New Mexico Mineral Symposium. The auctions and dinner will take place in the Fidel Center Ballrooms (registration fee required).

A silent auction will also take place from 9:00 a.m. to 1:00 p.m. in the lower lobby of Macey Center on November 14th. The auction is sponsored by the Albuquerque Gem and Mineral Club for the benefit of the Mineral Museum (FREE).


The pre-registration fee for the symposium is $50.00, and the fee for students is $25.00 (with student ID). Registration includes a copy of the abstracts, two continental breakfasts, and coffee breaks. On-site registration will cost an additional $10 each.

A cocktail hour with a cash bar, followed by a dinner and auction, will be held on Saturday, November 13th. The cost for the dinner is $30.00 for adults, $10.00 for children (2-12 years old). A auction to benefit the symposium will conclude the evening's activities.

Pre-registration forms and online registration will be available about a month before the symposium.


Friday November 12, 2021

9:00 a.m. Field Trip — Copper Flat Mine, Sierra County, NM. Meet at mine gate
5:00 p.m. to 7:00 p.m.
Friends of the Museum Reception — Headen Center (Bureau of Geology) atrium. Appetizers and cash bar.
7:00 pm to ? Informal motel tailgating and social hour, individual rooms, Comfort Inn & Suites (# 1 on map and other venues — FREE)

Saturday November 13, 2021

8:00 a.m. Registration — Macey Center, continental breakfast
8:50 Opening remarks, main auditorium
9:00 The Maybee Quarry, Maybee, Michigan — Christopher Stephano
9:30 Ramblings and rumblings from the Keweenaw of Upper Michigan — Thomas Rosemeyer
10:00 Coffee and burrito break
11:00 A rediscovery of epidote pseudomorphs after orthoclase from the Orogrande district, Otero County, New Mexico — Philip Simmons and Erin Delventhal
11:30 Minerals of the Naica Mine, Chihuahua, Mexico — Peter K.M. Megaw
12:00 p.m. Lunch
2:00 From gold to lead: The mineral riches of the Leadhills-Wanlockhead mining district, Scotland — Nathalie Brandes and Paul Brandes
2:30 Pyrites of Navajun, Spain (Geologist/Collector Odyssey—1993/2018) — David Stoudt
3:00 Coffee break
3:30 The Himalaya Pegmatite Mine, San Diego County, California: History and minerals — Mark I. Jacobson
4:00 The Smithsonian Gem Collection-Unearthed: Surprising Stories Behind the Jewels— Jeffrey Post (Featured Speaker)
5:30 Sarsaparilla and suds: cocktail hour, cash bar — Fidel Center Ballrooms
6:30 Silent Auction and Dinner followed by a voice auction to benefit the New Mexico Mineral Symposium — Fidel Center Ballrooms

Sunday November 14, 2021

8:00 a.m. Morning social, coffee and donuts
8:50 Welcome to the second day of the symposium and follow-up remarks
9:00 Bagdad revisited — Barbara L. Muntyan
9:30 Lighting your minerals — Tony Gleckler
10:00 Coffee break
10:30 A mid-1950s collection of uranium ore samples from Arizona, Colorado, Utah, and Canada — Peter Modreski and Virgil W. Lueth
11:00 Fabulous vanadates, arsenates, and phosphates from New Mexico — Ramon S. DeMark, Michael Michayluk, and Thomas Katonak
11:30 Inclusions in fluorite from the Quebradas, Socorro County, and the Sandia Mountains, Bernalillo County, New Mexico — Patrick Haynes
12:00 p.m. Lunch
9:00 a.m. to 1:00 p.m. Silent auction, lower lobby, Macey Center, sponsored by the Albuquerque Gem and Mineral Club for the benefit of the Mineral Museum (FREE)


See our Gallery of photographs from past symposia and associated field trips. If you have photographs that you would like to share, please contact us.

For more photos and “live reports” of past symposia, please peruse Erin Delventhal’s in-depth coverage on