Lil' Prospectors

What's in the box: A themed mix of 8+ pounds of screening material containing over 1.5 pounds of rocks, minerals or fossils, plus an identification card.

Lil' Prospectors sells at-home gem mining kits built around bags of screening material that kids sift through to uncover rocks, minerals and fossils. Besides one-off mixes, the company offers two subscriptions. The Lil' Prospector Box runs for 12 months with a different mix each month, promising over 50 types of specimens across the year along with lessons on the geology that formed them. The Birthstone Box follows the calendar and features each month's birthstone, from Herkimer diamonds to lapis lazuli. Subscription mixes are described as exclusive, so they differ from the individual mixes sold in the shop. Each mix comes with an identification card and more than 8 pounds of screening material holding over 1.5 pounds of specimens. Individual mixes start at $32.95, and Deluxe Kits, which add a sifter, start at $34.95. Shipping is free anywhere in the United States, including Alaska, Hawaii, Puerto Rico and the US Virgin Islands. The site does not clearly state subscription pricing, so check before you commit. The experience is genuinely hands-on, and the brand leans into STEM learning with classroom options, printables and ID cards. Keep in mind that most of each box's weight is sifting material rather than specimens, and digging through it works best outdoors or over a tray.