Mid-Hudson Valley Gem & Mineral Society hosts its annual gem, fossil, mineral and jewelry show and sale for two days at Gold's Gym. The theme of this year's show is "The World of Crystals." Shop from 30 dealers, watch a lapidary (gem-cutting) demonstration, and be sure to check out the rock and mineral displays set…

Mid-Hudson Valley Gem & Mineral Society hosts its annual gem, fossil, mineral and jewelry show and sale for two days at Gold's Gym. The theme of this year's show is "The World of Crystals." Shop from 30 dealers, watch a lapidary (gem-cutting) demonstration, and be sure to check out the rock and mineral displays set…