This rare blue onyx has an interesting trade name! It also goes by Aquatine Lemurian blue calcite also heaven or sky onyx. This name, though it makes sense for the banding & color quality can be a little misleading. This material is in fact not a calcite but a rare form of blue onyx leaving it in the family of agates & chalcedony. This material is associated with the ancient civilization of Lemuria. Though we think all of these pieces are nice this one has & iris effect! Metaphysical: -accession engeries -energy-balancing -soothing -connecting to intuition & the higher self Dimensions 3 x 2 7/8 x 2 3/8 inches Weight: 324 grams Blue Onyx Point Aka Aquatine