Jasper is a semiprecious chalcedony (or microcrystalline quartz), and is usually red, brown or green. Its patterns are much less regular and defined than agate, the other chalcedony variety. Another difference between the two is that jaspers are generally opaque, while agates tend to be translucent (or at least contain translucent bands). This distinction stems from the stones' composition. Jasper contains microscopic "grains" of crystalline quartz and agate has microscopic "fibers" of crystalline quartz. Although the term jasper is often applied to unidentified stones, true jaspers are metamorphic rocks. Learn more about Jasper in the Gemstone Index">
Rhyolite gemstone beads can look very similar to jasper, but rhyolites are igneous rock that is chemically identical to granite. Learn more about Rhyolite in the Gemstone Index.
We've combined the rhyolite and jasper categories, because two popular "jasper" gemstones, rainforest jasper and leopardskin jasper, are actually rhyolite.
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Dakota Stones Rhyolite 8mm Puff Coin Bead Strand
Dakota Stones$9.95Lush style fills these Dakota Stones beads. The puff coin shape is wonderfully versatile. You can use these beads as an accent to lend extra color or dimension to a statement piece or you can use them as substitutes for rounds in simple strung and... -
Dakota Stones 8mm Matte Australian Butter Jasper Puff Coin Bead Strand
Dakota Stones$8.77For a lovely touch on designs, try these Dakota Stones gemstone beads. The puff coin shape is wonderfully versatile. You can use these beads as an accent to lend extra color or dimension to a statement piece or you can use them as substitutes for rounds... -
Dakota Stones Dragon Blood Jasper 12mm Coin Bead Strand
Dakota Stones$9.95Deep dramatic red pools over the forest green colors of these dragon blood jasper 12mm coin beads from Dakota Stones. These circular coin-shaped beads feature mottled green colors mixed with crimson splashes of color. The two primary colors contrast and... -
Dakota Stones Matte African Turquoise Jasper 12mm Coin Bead Strand
Dakota Stones$13.95A cool color palette fills these Dakota Stones beads. These beads feature a circular coin shape that will stand out in necklaces, bracelets, and earrings. They display turquoise blue color with a brown and black matrix. The matte finish adds a soft... -
Dakota Stones 8mm Kabamby Ocean Jasper Puff Coin Bead Strand
Dakota Stones$8.77Gorgeous colors fill these Dakota Stones gemstone beads. The puff coin shape is wonderfully versatile. You can use these beads as an accent to lend extra color or dimension to a statement piece or you can use them as substitutes for rounds in simple... -
Dakota Stones Aqua Dyed Impression Jasper 8mm Puff Coin Bead Strand
Dakota Stones$10.95Showcase splashes of gemstone style in your jewelry with these Dakota Stones beads. The puff coin shape is wonderfully versatile. You can use these beads as an accent to lend extra color or dimension to a statement piece or you can use them as...