Pay-To-Dig Gem Mines in New York

The largest garnet mine in the world — and it offers public tours and fee digging. The Gore Mountain almandine garnets found here are among the largest in the world, with some reaching softball size. Tours operate seasonally on weekends. Take home garnets you find yourself or purchase specimens in the gift shop.

Break open 500-million-year-old dolostone to find doubly-terminated quartz crystals known as Herkimer Diamonds. These exceptionally clear crystals form in natural rock pockets (vugs). Hammers and chisels provided.

Another great Herkimer Diamond location in Middleville, NY. Dig in ancient dolostone layers for double-terminated quartz crystals. Excellent family-friendly experience with tools provided.

Mining attraction in the Mohawk Valley region of upstate New York

Collect doubly-terminated quartz crystals — called Herkimer Diamonds — from Cambrian dolostone. Use hammers and chisels to crack open rock and find crystal-filled vugs.

Crack open rocks to find beautiful doubly-terminated quartz crystals known as Herkimer Diamonds.