mineral

Blue Aragonite

Aragonite (Calcium Carbonate, CaCO3)

Hardness: 3.5-4.0; Color: Pale blue to turquoise; Luster: Vitreous to dull; Crystal structure: Orthorhombic; Cleavage: Distinct in one direction; Specific gravity: 2.93-2.95.

Hardness: 3
Color: Pale blue to turquoise
Luster: Vitreous to dull

Identified June 8, 2026More mineral →

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Physical properties

Hardness: 3.5-4.0; Color: Pale blue to turquoise; Luster: Vitreous to dull; Crystal structure: Orthorhombic; Cleavage: Distinct in one direction; Specific gravity: 2.93-2.95.

Formation & geological history

Typically forms through hydrothermal processes or in caves as speleothems. It is a secondary mineral that precipitates in the oxidized zones of ore deposits or within sedimentary environments.

Uses & applications

Used primarily as a decorative stone, in jewelry (as beads or cabochons), and as a popular specimen for crystal healing and metaphysical mineral collectors.

Geological facts

Aragonite is a polymorph of Calcite, meaning they share the same chemical formula but different crystal structures. Over long periods or when heated, Blue Aragonite can naturally revert to calcite.

Field identification & locations

Identify by its light blue color and bubbly (botryoidal) or massive granular habit. It will react and fizz (effervesce) when exposed to weak acid. Common localities include China, Pakistan, and Spain.