Dyed "Crazy Lace" Calcite is available in fantastic color options, for great prices. It is clearly a "reconstituted" or "block" type of gemstone, which means it is a mixture of resin, dyes, and potentially some gemstone content -- in this case, leftover/recycled calcite from other stone cutting projects. It seems durable and colorfast (it won't leak onto your customer's clothes), and we just loved the color selection so much that we couldn't pass it up. We encourage you to use it and love it too, just please don't try to pass off "block" gemstone beads like these, as natural or genuine gemstones.
Please see the Related Products links below for similar items, and more information about this stone.