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Agate

No gemstone is more creatively striped by nature than agate. This distinct and dramatically banded variety of chalcedony is composed of quartz layers. This composition varies greatly and can be of many colors. The other chalcedony family, jasper, has less-regular patterns and is less defined than the agates. Another difference between the two is that agates tend to be translucent (or at least contain translucent bands), while jaspers are generally opaque. This distinction stems from agate being composed of microscopic "fibers" of crystalline quartz while jasper is made of microscopic "grains" of crystalline quartz. Each individual agate forms by filling a cavity in a host rock. As a result, agate is often found as a round nodule with concentric bands like the rings of a tree trunk.

In ancient times, agate was highly valued as a talisman or amulet. It was said to quench thirst and protect from fever. Persian magicians used agate to divert storms. Some believed that agate would render the wearer invisible, and due to its strength and durability, it is used for making ornaments or for astrological purposes. Agate is a cooling stone and is said to cure insomnia, protect against danger, promote strength and healing, and ensure a healthy life. The major sources of agate are Australia, Canada, Mexico and the U.S.A. The gemstones of Maryland (Patuxent River Stone), Minnesota (Lake Superior agate) and South Dakota (Fairburn agate) are all agates. Find out about individual types of agate in our Gemstone Index.

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  • Dakota Stones Blue Crazy Lace Agate 12mm Coin Bead Strand Dakota Stones Blue Crazy Lace Agate 12mm Coin Bead Strand

    Dakota Stones Blue Crazy Lace Agate 12mm Coin Bead Strand

    Dakota Stones
    $11.95
    Beautiful blue hues fill the blue crazy lace agate 12mm coin beads from Dakota Stones. Available by the strand these circular coin-shaped beads feature bright blue color swirled with white and the occasional hint of green. These beads are perfect for...
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  • Dakota Stones Pink Crazy Lace Agate 10x14mm Oval Bead Strand Dakota Stones Pink Crazy Lace Agate 10x14mm Oval Bead Strand

    Dakota Stones Pink Crazy Lace Agate 10x14mm Oval Bead Strand

    Dakota Stones
    $11.45
    Get playful in your style with these Dakota Stones beads. They feature a fun oval shape and deep pink color full of swirls. They are a great option for long necklace strands, bracelets, and even earrings. Mexican crazy lace agate is normally an opaque...
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  • 12mm Round Matte Druzy Agate Gemstone Beads (strand)

    12mm Round Matte Druzy Agate Gemstone Beads (strand)

    $8.80
    Druzy: The stunning visual appeal of druzy beads and pendants makes them great options for jewelry focals. Sometimes spelled druse or drusy, druzy is a layer of fine crystals that forms on the inner surfaces of geodes and rock fractures over millions of...
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  • Dakota Stones Pink Crazy Lace Agate 12mm Square Bead Strand Dakota Stones Pink Crazy Lace Agate 12mm Square Bead Strand

    Dakota Stones Pink Crazy Lace Agate 12mm Square Bead Strand

    Dakota Stones
    $10.95
    Keep your style fun with these Dakota Stones beads. These gemstone beads feature a funky square shape that will stand out in your style. Use them in necklaces, bracelets, and earrings. Each bead displays deep pink color full of swirling patterns...
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  • Dakota Stones Purple Crazy Lace Agate 12mm Square Bead Strand Dakota Stones Purple Crazy Lace Agate 12mm Square Bead Strand

    Dakota Stones Purple Crazy Lace Agate 12mm Square Bead Strand

    Dakota Stones
    $10.95
    Layers of exquisite color and banded patterns come together in the purple crazy lace agate 12mm square beads from Dakota Stones. These square-shaped beads are slightly puffed to give them extra dimension. The purple colors swirl with black and burgundy...
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  • Dakota Stones Blue Crazy Lace Agate 12mm Square Bead Strand Dakota Stones Blue Crazy Lace Agate 12mm Square Bead Strand

    Dakota Stones Blue Crazy Lace Agate 12mm Square Bead Strand

    Dakota Stones
    $11.95
    Add the color of ocean waters to your jewelry designs. These Dakota Stones gemstone beads are square in shape and display beautiful blue patterns that look like rippling water. They're perfect for showcasing in necklaces, bracelets, and even earrings...
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  • Dakota Stones Terra Agate 12mm Round - 15-Inch Bead Strand

    Dakota Stones Terra Agate 12mm Round - 15-Inch Bead Strand

    Dakota Stones
    $19.45
    A beautiful blend of earthly color fills these terra agate beads from Dakota Stones. These beads feature a mix of greenish-blue and brown, creating Earth-like patterns with the brown spaces like continents in the vast ocean. Terra agate is a form of...
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