Tumble, polish, and discover eight of your very own gemstones with The Young Scientists Club Gemstone Treasures! This STEM activity kit has everything you need to become a real geologist and see semi-precious stones, like blue apatite, turquoise, amethyst, and tiger eye, up close and personal. Place rough stones and a little bit of water into the hand-powered rock tumbler, then turn the handle to reveal polished treasures in minutes - no batteries needed. It's never been easier to tumble your own gemstones! Use the double-sided brush and pick tool and polishing cloth to get your premium stones squeaky clean. Then, grab the magnifying glass and use the 2-in-1 Geology Game & Poster to identify them and learn what makes each unique! Challenge your friends to a round of bingo and memory using the included board game, then collect and display your gems for all to see! This science kit helps develop critical thinking skills, identification, curiosity, cause and effect, and more. Details:10" x 4.5" x 12" package sizeRecommended for ages 6 and upContents: 1 measuring cup1 magnifying glass1 identification chart (24" x 24")40 game cards1 polishing cloth1 pair of tweezers1 treasure tumbler (7.6" x 6.6" x 6.4")1 brush and pick tool8 gemstones (amethyst, blue agate, blue apatite, green aventurine, howlite, red agate, tiger eye, turquoise and quartz)1 treasure trayEasy-to-follow instructions