Crystals

Study crystals with some surprising properties, or grow your own! If you look at the words on a printed page through a Calcite Crystal, you see double. Pyrite Cubes are cubic specimens of FeS2, formed over 100 million years ago by sulfur reacting with iron. Grow beautiful crystal gardens with Mrs. Stewart's Liquid Bluing, table salt, household ammonia and food coloring. 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!
  • list off, grid on  list on or off
  • Magic Rocks

    Magic Rocks

    The rocks grow into fascinating crystal towers in just a day.
    $4.95–$12.95
  • Starter Geode Kit

    Starter Geode Kit

    Review star icon Review star icon Review star icon Review star icon Review star icon (2 reviews)
    Crack open these real geodes and discover the amazing crystal treasure inside!
    $19.95
  • Fulgurite - Lightning Fused Sand

    Fulgurite - Lightning Fused Sand

    Review star icon Review star icon Review star icon Review star icon Review star icon (2 reviews)
    What happens when nearly one billion Joules of lighting energy strikes sand?
    $24.95
  • Calcite Crystal - Iceland Spar

    Calcite Crystal - Iceland Spar

    Review star icon Review star icon Review star icon Review star icon Review star icon (1 review)
    If you look at the words on a printed page through this crystal, you see double.
    $6.95
  • Bismuth Crystal

    Bismuth Crystal

    Review star icon Review star icon Review star icon Review star icon Review star icon (8 reviews)
    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

    Review star icon Review star icon Review star icon Review star icon Review star icon (2 reviews)
    A scientific experiment you can eat! Crystals grow to full size in just 7 days!
    $16.95
  • Calcite Cleavage Kit

    Calcite Cleavage Kit

    Give your students the opportunity to cleave their own sample.
    $19.95–$34.75
  • Pyrite Cubes

    Pyrite Cubes

    Review star icon Review star icon Review star icon Review star icon Review star icon (3 reviews)
    Cubic specimens of FeS2, formed over 100 million years ago by sulfur reacting with iron.
    $9.95
  • Mrs. Stewart's Liquid Bluing

    Mrs. Stewart's Liquid Bluing

    Grow beautiful crystal gardens with bluing, table salt, household ammonia and food coloring.
    $5.50–$45.95
  • Crystal Growing Dolomite

    Crystal Growing Dolomite

    Review star icon Review star icon Review star icon Review star icon Review star icon (7 reviews)
    Grow beautiful white Aragonite crystals.
    $2.95–$8.95