Founded in 1964, the Denver Gem and Mineral Guild is an award winning non-profit organization that pursues exploration, experimentation, and education in the Earth Sciences; the discovery, development and preservation of minerals and mineral deposits; and the advancement, encouragement and utilization of the principles of art and craftsmanship as applied to gems and minerals.  We are a diverse group of women, men, and children who love ROCKS. We love to dig them, cut them for jewelry, and collect them. Our members love to share our passion for rocks and minerals. We have professional geologists, teachers, and people who just love rocks.

We meet the 2nd Friday of the month – September through May at the Colorado School of Mines in Berthoud Hall room 108 at 7pm – VISITORS WELCOME!  – CLICK HERE for details.


The DGMG website is back up!


June 2021 Activities Held

Friday June 11, 6:30 pm – LIVE meeting (outdoors) at Addenbrooke Park, 581 S. Garrison St. Lakewood, CO

Tom Addenbrooke was a founder of the DGMG. His massive rock collection ended up in the homestead fireplace and fence pillars around the front of the property along Garrison Street. On this adventure, we had a scavenger hunt of rocks and specimens in the rock structures. The Questions (and answers have been posted in the members only area on the

FIELD TRIP #3 FRIDAY JUNE 4, Smoky Hawk Claim, Lake George, CO

Joe Doris, claim owner, holds a smoky quartz with amazonite from the Smoky Hawk Claim.

FIELD TRIP #4, SATURDAY JUNE 5, Topaz Gem Mountain Mine, Lake George, CO

FIELD TRIP #5 TWO CREEKS! Pawnee National Grassland: June 19 Barite, agates, and fossilsJune Fieldtrip with Bob

July 2021 Event Schedule

Here is the lineup of coming events. Check out the latest DGMG Newsletter for additional details.

Friday July 9, 7:00 pm – Zoom Meeting

Don’t miss our July meeting from the comfort of your home via Zoom.  Pete has another mineral trivia game for us. The game will be rock/mineral/gem related, and it will be fun, interesting, and easy, NOT technical, so, we
encourage everyone who can, to prepare to log in and take part. You will need to use two online devices; one, the one you use to connect to the Zoom meeting, on which you’ll see the pictures and questions via Kahoot, and a second one– a smart phone–on which to click your answers from the choices, as before, of one of 4 colored response boxes. There will actually be two separate (but related) quizzes, so we’ll have two grand winners! The first will be something “that you might expect”, and the second, will be something, I think I can promise, that you (or anyone? including Pete himself) “never thought of”, till he started thinking about this game for the club!

Join Zoom Meeting
Meeting ID: 813 1616 6006
Passcode: 644791

DGMG Picnic, Sunday, July 25, 9:30 a.m. at Bear Creek Lake Park, Skunk Hollow Picnic Area

Bring your usual Sunday brunch potluck dish to share. Club will provide beverages, paper plates and plastic ware.DGMG PicnicDGMG Picnic

DGMG Picnic

Memorial Service for long time DGMG member Jane Dianich, Sunday, July 25, 2021 Wheat Ridge United Methodist Church, 4:00 PM, 7530 W. 38th Ave

Join the fun

Join the Denver Gem & Mineral Guild!

The Denver Gem & Mineral Guild is a member of:

The Greater Denver Area Gem and Mineral Council, Inc., host of the Denver Gem & Mineral Show™, is a non-profit 501(c)(3) corporation organized exclusively for charitable, educational, and scientific purposes. Trustees from each of our eight member clubs sit on the Council Board. The Council oversees the annual show, and twice each year, the Council distributes proceeds from the show in the form of grants to not-for-profit organizations, particularly those based in Colorado, to promote activities that educate the public in the earth sciences.

Annual giving ranges from $20,000 to $30,000. Funds are directed toward site and specimen preservation and display efforts, as well as to assist institutions in purchasing equipment, tools, and supplies. Recent grant recipients have included the Denver Museum of Nature and ScienceColorado School of Mines Geology MuseumDinosaur RidgeMorrison Natural History Museum FoundationHinsdale County Historical SocietyCanyon City Geology ClubBig Horn Basin Foundation, and the Junior Museum of Pennsylvania.

The Rocky Mountain Federation of Mineralogical Societies has a close association with all the clubs in the Society to promote the study of earth sciences, including the lapidary arts, the study of fossils and paleontology, and related crafts.

The RMFMS was organized in 1941, and held its first annual convention at the Argonaut Hotel in Denver, Colorado. There were 16 organizations in attendance. The RMFMS became one of the original four founders of the American Federation of Mineralogical Societies when it was organized in 1947.

The Rocky Mountain Federation of Mineralogical Societies covers local clubs in the following states:

Arizona (17), Arkansas (1), Colorado (20), Kansas (5), Nebraska (western portion of state) (1), New Mexico (7), Nevada (1), North Dakota (western portion of state)(1), Oklahoma (9), South Dakota (western portion of state) (1), Texas (1), Utah (7) and Wyoming (7).

The American Federation of Mineralogical Societies promotes popular interest and education in the various Earth Sciences, and in particular the subjects of Geology, Mineralogy, Paleontology, Lapidary and other related subjects and sponsors and provides means of coordinating the work and efforts of all persons and groups interested therein. It sponsors and encourages the formation and international development of Societies and Regional Federations and by and through such means to strive toward greater international good will and fellowship.

The American Federation of Mineralogical Societies is composed of the following seven similar regional organizations of gem, mineral, and lapidary societies.  CFMS – California Federation of Mineralogical Societies | EFMLS – Eastern Federation of Mineralogical and Lapidary Societies | MWF – Midwest Federation of Mineralogical and Geological Societies |  NFMS – Northwest Federation of Mineralogical Societies |  RMFMS – Rocky Mountain Federation of Mineralogical Societies |  SCFMS – South Central Federation of Mineral Societies
 |  SFMS – Southeast Federation of Mineralogical Societies

This page last updated on  07/04/2021