Gem Mining
Visit Ohio’s Largest Rock & Gem Mining Sluice
Mine, Find, & take your treasures home
$7.49 Bag
SMALL Paydirt MINING Mix
Contains a variety of precious and semi-precious uncut gems.
$13.99 Bags
ARROWHEAD mix
Contains gems plus at least one handcrafted arrowhead.
EMERALD mix
Contains several uncut, unpolished emeralds, and other gems.
FOSSIL mix
Contains several varieties of real fossils, such as amber and shark teeth.
$31.99 bag
the MOTHERLODE
This huge bag contains gems, fossils, shells, and amethyst druze, and much more!
Start your first rock collection at Olentangy Caverns.
Gem mining is a hit for kids and parents. In fact, many adults buy their own big bag because it’s such a fun surprise to see what’s inside!
STEP 1: Purchase a bag of mining rough.
STEP 2: Go outside to the running water sluice.
STEP 3: Get a wooden mining pan. Empty your mining rough in small sections, rinse it in water, and pull out all the gemstones!
STEP 4: Identify rocks at the assay station and take them home in a bag we provide — or purchase a custom Olentangy Caverns rock collector’s box.