Blue aragonite is a striking and relatively rare variety of the mineral aragonite, known for its distinctive blue hues.
Aragonite crystallizes in the orthorhombic crystal system. It typically forms acicular (needle-like), prismatic, or tabular crystals. It can also occur in fibrous, columnar, or massive forms. It is composed of calcium carbonate (CaCO₃), the same chemical formula as calcite, but with a different crystal structure. Aragonite forms in a variety of sedimentary environments, particularly in marine settings where it can precipitate directly from seawater. It can also form through hydrothermal processes, where mineral-rich waters deposit aragonite in veins and cavities within rocks.
Blue aragonite exhibits a range of blue shades, from pale blue to deeper blue-green. The blue coloration is typically due to the presence of trace amounts of copper, cobalt, or other impurities within the crystal lattice. It often has a vitreous (glassy) to resinous luster, enhancing its visual appeal.
Notable deposits of blue aragonite are found in China, as well as Greece and Peru.
MEASUREMENT DETAILS:
MINERAL #1 - 2"L x 1.25"W x 1.75"H
MINERAL #2 - 1.75"L x 1.25"W x .75"H
MINERAL #3 - 2"L x 1.75"W x 1"H
MINERAL #4 - 2"L x 1.50"W x 1"H
MINERAL #5 - 2"L x 1.25"W x .75"H
MINERAL #6 - 1.75"L x 1.25"W x .75"H