...attending. Shearer developed his own technique for macro-photography of agates and minerals. Shearer was first an agate collector. He was trained as a medical photographer but found himself at a rock shop one day wondering what a Mexican agate...

...attended Agate & Mineral Show. Minnesota's state gemstone is the Lake Superior agate. Smith, a Lake Superior agate collector, said she didn't realize there were agates all over the world until she became more involved with them. For novice...