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from Klutz 32-page book with details on every rock included, plus 6 additional activities, promotes earth science and the study of minerals. 29 unique rocks, gems, and minerals from rainbow-flecked crystal opal to metallic gold radial pyrite. Use the color changing display light to make a shining crystal agate slice lamp. 3AA batteries not included
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🇺🇸 Ship from USA · On Agora since 2026
$24.99