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Azurite is a copper mineral featuring distinctive blue crystals. This large specimen makes a beautiful display, and each is...
Cornerstone's Igneous Rock Kit includes 16 numbered and hand-selected samples from the U.S. and beyond! It features a...
Organize your own discoveries with Cornerstone's specimen boxes and trays. Our attractive specimen box (8" x 10.5") comes...
Cornerstone's Sedimentary Rock Kit includes 16 numbered, hand-selected samples from all over the U.S. and beyond! It features a wide...
Cornerstone's Metamorphic Rock Kit includes 16 numbered and hand-selected samples from the U.S. and beyond, featuring a wide variety...
