You will receive exactly this Aragonite Sphere - 50mm / 2 Inche Approx Diameter; 180g / 6.3 oz (see photo, stand included)!
Aragonite and the more common mineral Calcite are polymorphous to each other. Although Aragonite and Calcite contain the same chemical composition, they differ in crystal structure. Aragonite forms orthorhombic crystals, whereas Calcite forms trigonal crystals. Since the true identity of microcrystalline forms of Aragonite or Calcite may not be known, they may be mislabeled as the wrong mineral.
Chemical Formula: CaCO3; Composition: Calcium carbonate, sometimes with some strontium, lead, and zinc; Hardness: 3.5 - 4; Color Colorless, white, brown, gray, yellow, red, pink, purple, orange, blue, green;
Aragonite frequently contains sand inclusions, which give a specimen a brown color. It forms in many environments, but a particularly interesting one is its formation from deposition of hot, mineral-rich springs. The water releases the calcium it contains upon reaching the air, and forms mounds and thick crusts around the springs. When these deposited mounds and crusts are banded, they are sometimes carved and termed "Onyx Marble", "Suisan Marble", "California Onyx", or "Mexican Onyx".
(The above information is provided solely for informational purpose. Kindly note that all stones are offered for decorative purposes only. Please, handle your stones with great care, do not grind or crumble them, do not dip or add them into your food or drink, do not use any parts of them in any elixirs, potions, lotions etc. Always make sure you wash your hands before and after working with your crystals.)