Today is Friday, June 24, 2016

Welcome to the Northwest Arkansas Gem & Mineral Society Website

The Northwest Arkansas Gem and Mineral Society is a non-profit organization dedicated to promoting Earth Sciences and Lapidary Arts, based in Siloam Springs, Arkansas.

Our Mission

The Northwest Arkansas Gem and Mineral Society is a group of like-minded enthusiasts dedicated to learning, sharing and promoting earth science, geology, mineralogy, paleontology, lapidary arts and associated subjects. It is composed of individuals who have chosen these as an area of primary interest and are willing to use their experience, talent, knowledge and efforts to promote the Society's mission.

Our Meetings

We hold a monthly general meeting at our Clubhouse on the 4th Tuesday of each month from 7PM to 9PM. Doors open at 6:30PM. We love hosting visitors and guests, including children, and we encourage everyone with an interest in gems and minerals to join us at one our monthly meetings.

Our Membership

The Society is open to all persons with rockhound "fever." We offer something for every family member and our activities as rockhounds encourage family fun and participation. Our membership includes children, high school and college students, working adults and retirees.

Membership Information

Our Location


Our club is based in Siloam Springs, Arkansas. Our service area encompasses the Greater Northwest Arkansas metro corridor, representing the cities of Bella Vista, Bentonville, Rogers, Lowell, Springdale, Fayetteville, Siloam Springs and Gentry, as well as counties in Southeastern Oklahoma.


Siloam Springs, Arkansas

GPS 36.206926, -94.553682

(501) 420-3612 (voicemail and text)

Email Contact


Our meetings are held on the fourth Tuesday of each month.


7:00 PM - 9:00 PM

Subscribers receive email notifications of our field trips, our events and other information of interest to rockhounds.

Sitewide Keyword Search

Don't know about you, but I believe Spring has left us behind. We are definitely warmer AND a lot more humid. I hope most of you got your serious rock hunting done 'cause you're going to be a lot more uncomfortable digging, and climbing around to find that awesome one of a kind find!

Did you go on a recent field trip and have fun? Did you talk about it with anyone that hasn't been on a field trip or really know anything about rocks beside that's a diamond, ruby, emerald, etc. Let's share our enthusiasm about rocks! I take some to work and swap out on a regular basis, they sure are conversation starters.

For our program we will be looking at our website on the computer and showing how to move around in it. How to access the areas that are for club members. We have a top class and I mean a top class website and let's learn how to use it. We are getting feedback from other clubs on how classy and useful our site is. Have you been to it yet? We will also be showing the 2nd half of the Sweetheart Mine with the focus on Rhodochrosites. We saw the 1st part at an earlier meeting.

Hope to see you at this coming meeting!

Sylvia Evans
Club President

Meeting Minutes for the May 2016 general meeting have been posted to the Member's Area.

PDF File

Mr. Ardis Cruz of the Wichita Gem and Mineral Society has asked that I send out this to everyone. This is a huge auction with lots of lapidary equipment and rough rocks. I have opened the attachment and it has a great deal of nice things that I am sure someone will truly like to purchase. In the attachment is another link to the auction house that will auction the material off and there is a lot more pictures.

Liz Thomas
RMFMS Secretary

Patterson Sale Flyer
Saturday, June 25 2016.


Pictured: Ms. Caitlin Ahrens

Minerals of Mars

Our guest speaker for May was Ms. Caitlin Ahrens from the W.M. Keck Laboratory for Space Simulation, a research laboratory in the Arkansas Center for Space and Planetary Science at the University of Arkansas.

Ms. Ahrens presented a wide range of topics related to the surface environment on Mars, the geological formations recently discovered by planetary rovers, high resolution photography and investigations into the possibility of water on Mars. Her presentation included Mars topography photos from HIRISE, a camera on board the Mars Reconnaissance Orbiter. Other items included a rare mineral sample of a basaltic olivine from the Red Planet ejected from Mars by the impact of an asteroid falling to earth on July 18, 2011 in a remote rocky desert region southwest of Tissint, Morocco.

Dean and Ruby Shafer

Dean and Ruby Shafer, recognized by the American Federation of Mineralogical Societies as 2015 Rockhounds Of The Year.

photo: K. E. Key

upcoming events

Fall Swap Dates

The Annual Fall Swap will be held on September 10-11, the weekend following Labor Day. A workday to prepare for the Fall Swap has been set for Saturday, August 27.

latest article
May 18, 2016, 2:32 AM
I’m late! I’m late! For a very important date! No it’s not to see Alice in Wonderland, it is for getting May’s installment of this old shop in.
gem and mineral shows
Apr 20, 2016, 6:52 AM
Northwest Arkansas Gem and Mineral Society Annual Fall Swap,…
Dec 30, 2015, 11:05 AM
April 9-10, 2016
special feature
Photos from a trip to see the Wichita Gem and Mineral Society 63rd Annual show, "Nature's Treasures".
This gallery displays the collection of Paul Otto, winner of six AFMS National Awards for Mineral Display.
A portfolio displaying selections from the Dean Shafer Collection.
latest photo GALLERy
Apr 25, 2016, 5:17 AM
Photos from a trip to see the Wichita Gem and Mineral Society 63rd Annual show, "Nature's Treasures".
Tri-States Minerals
Tulsa 2016 Show Flier

2016 Fall Swap and Auction - September 10-11, 2016

One of the great pleasures in the gem and lapidary world is visiting clubs during their annual shows.

The 2016 Northwest Arkansas Gem and Mineral Society Annual Fall Swap and Auction will feature a wide range of rocks, minerals, gems, demonstrations, handcrafted jewelry, fossils and supplies. Whether you’re looking for a bargain or just interested to see what lapidaries are doing, you can be sure of a warm welcome.

If you are already a lapidary club member in our area, why not organize an official club outing to our event and really make a day of it?

If you’re just browsing and not a member of any club, this is a terrific way to discover a little bit about earth science, geology and lapidary. There will be many subject matter experts on hand to answer your questions.

Technology for Rockhounds

This website is mobile-device friendly. It displays equally well on high definition televisions, desktop monitors, tablets, smartphones and wearable devices..

Rockhound Ephemera Project

Ephemera - printed materials with a short life span, such as newsletters, brochures, catalogs, ads, flyers, cards, stickers, posters and more - is a unique media whose content and graphic richness are a historical and cultural resource.

Wolfram|Alpha Computational Knowledge Engine

Wolfram|Alpha introduces a fundamentally new way to get knowledge and answers — not by searching the web, but by doing dynamic computations based on a vast collection of built-in data, algorithms, and methods.

An interactive map showing mineral deposit names, locations, commodity and deposit descriptions known to the US Geological Survey in the continental United States.

Pick Of The Week: How Do You Say That Word?

Alphabetically listed audio files with the correct pronunciations of minerals and terms.

This is part of a course offered at the College of Southern Nevada as Geology 115, Introduction to Gemology, and is an ongoing offering from their Distance Education Department via the internet for anyone, regardless of their geographic location.

Introduction to Gemology: Barbara Smigel, PhD, GG

Colorado School of Mines

Geology Museum, Colorado School of Mines

A brief introduction to minerals

by Michael Sammartano