mineral

Larimar

Blue Pectolite (NaCa2Si3O8(OH))

Hardness: 4.5-5 (Mohs scale); Color: Light blue, turquoise blue to deep sky blue, often with white marbling; Luster: Vitreous to silky; Crystal Structure: Triclinic; Specific Gravity: 2.7-2.9

Hardness: 4
Luster: Vitreous to silky

Identified June 25, 2026More mineral →

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Physical properties

Hardness: 4.5-5 (Mohs scale); Color: Light blue, turquoise blue to deep sky blue, often with white marbling; Luster: Vitreous to silky; Crystal Structure: Triclinic; Specific Gravity: 2.7-2.9

Formation & geological history

Formed as a result of volcanic activity where hot mineral-rich fluids filled cavities (vesicles) in basaltic lavas. It was discovered in the Dominican Republic and dates to the Miocene epoch.

Uses & applications

Primarily used in jewelry (cabochons, beads, and pendants) and for metaphysical/collecting purposes due to its rare color.

Geological facts

Larimar is only found in one square kilometer of the world, in the Filipinas Mine in Los Chupaderos, Dominican Republic. It is often called the 'Dolphin Stone' or 'Atlantis Stone'.

Field identification & locations

Identify by its unique sky-blue color and white 'pattern' that resembles sunlight reflecting through water. In the field, look for volcanic basalt outcrops in the Barahona region of the Dominican Republic.