Blue Aragonite/Blue Carribean Calcite Heart #15 measures approximately 2 5/16" x 1 15/16" x 11/16" (61mm x 51mm x 18mm) and weighs approximately 3.0 ounces (76.9 grams). I believe this crystal is actually Blue Aragonite, but it is also called Blue Carribean Calcite. Aragonite and Calcite are the same chemical formula. Calcite reacts to acid, and that's about the only difference between Aragonite and Calcite. There are vugs in many of these hearts. Vugs are holes with drusy crystal in them. They resemble little caves.
(Healing Crystal, Throat Chakra Crystal)
Hardness: 3.5 to 4.0
Origin: Pakistan