Crystals for Geology & Science Lessons

Study crystals with some surprising properties, or grow your own! Sometimes called "Popcorn Rocks", gray Dolomite samples grow beautiful white Aragonite crystals when placed in a small bowl of white vinegar. The Rock Candy Crystal Growing Experiment Kit is a scientific experiment you can eat! Crystals grow to full size in just 7 days! Bismuth is one of the few materials that have a greater density as a liquid than as a solid. The crystals that form from melted and cooled bismuth are beautiful, and all completely unique.
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  • Crystal Growing Kit

    Crystal Growing Kit

    Grow your own custom-colored crystal with this all-inclusive kit.
    $9.95
  • Fulgurite - Lightning Fused Sand

    Fulgurite - Lightning Fused Sand

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    What happens when nearly one billion Joules of lighting energy strikes sand?
    $24.95
  • Iron Pyrite

    Iron Pyrite

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    Iron Pyrite specimens of FeS2, formed over 100 million years ago by sulfur reacting with iron.
    $8.95–$9.95
  • Television Stones - Ulexite

    Television Stones - Ulexite

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    When placed upon a printed page, the words can be read through it.
    $9.95
  • Bismuth Crystal

    Bismuth Crystal

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    Great for teaching about crystals, states of matter or even as a gift!
    $8.95
  • Rock Candy Crystal Growing Experiment Kit

    Rock Candy Crystal Growing Experiment Kit

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    A scientific experiment you can eat! Crystals grow to full size in just 7 days!
    $24.95
    *Backordered: 2/21/2025
  • Crystal Growing Dolomite

    Crystal Growing Dolomite

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    Grow beautiful white Aragonite crystals.
    $2.95–$10.95
  • Mrs. Stewart's Liquid Bluing

    Mrs. Stewart's Liquid Bluing

    Grow beautiful crystal gardens with bluing, table salt, household ammonia and food coloring.
    $4.95