Rock & Mineral Kit, 12 Pieces - Includes Metamorphic, Igneous, Sedimentary Rocks & Minerals - 1" Specimens - Great for Geology Classrooms & Basic Field Testing Labs - Tech Cut Rocks by Eisco Labs workwarehouse You can tighten these a

You can tighten these a little better than the regular oval head screws with the extra wide wings

the clip of the rechargeable wireless presenter remote like a pen

Folders Covers contain 65% recycled fiber with 30% post consumer fiber

Please use it carefully

Rock & Mineral Kit, 12 Pieces - Includes Metamorphic, Igneous, Sedimentary Rocks & Minerals - 1" Specimens - Great for Geology Classrooms & Basic Field Testing Labs - Tech Cut Rocks by Eisco Labs workwarehouse You can tighten these aRock & Mineral Kit, 12 Pieces Includes Metamorphic, Igneous, Sedimentary Rocks & Minerals 1" Specimens Great for Geology Classrooms & Basic Field Testing Labs Tech Cut Rocks by Eisco Labs Product Features EXPLORE TECH CUT ROCKS & MINERALS A fun introduction to the world of geology through rocks and minerals. 12 PIECE KIT Set includes twelve different rocks and minerals Crystal Quartz, Basalt, Breccia, Biotite Gneiss, Fluorite, Granite, Conglomerate,