My name is Walter Kellogg. I have been collecting minerals as a hobby since the age of 5. That makes more than 55 years. I have been selling minerals at gem and mineral shows as a full time business for 19 years. My wife, Maryann, occasionally helps me, so that is where the name M&W came from.
I have just opened this site on 11/24/09, so bear with me - it takes time to photograph and post the minerals. If there is anything in particular you would like - email me - you never know.