Vermont Museum of Mining and Minerals
Vermont Museums-Mining & Minerals
http://www.vtm3.org/Learn about Vermont’s rich mining and mineral industries through displays on talc, soapstone, and the world-famous Vermont marble, granite and slate. See raw gemstones and crystals like malachite from Africa, amethyst from Madagascar and brilliant Brazilian geodes. Watch rocks go from mild to wild in a hands-on fluorescent mineral exhibit. Interact with special displays for kids.
Pleasant Street 55, Grafton, Vermont 05146, USA
Also see:
https://www.mindat.org/museum-04.html