mineral

Larimar

Pectolite (NaCa2Si3O8(OH))

AI-generated identification · may be incorrect

Hardness: 4.5-5.0 on Mohs scale; Color: Sky blue to sea green with white marbling; Luster: Vitreous to silky; Crystal Structure: Triclinic; Specific Gravity: 2.74-2.88.

Hardness: 4
Color: Sky blue to sea green with white marbling
Luster: Vitreous to silky

Identified July 9, 2026More mineral →

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Physical properties

Hardness: 4.5-5.0 on Mohs scale; Color: Sky blue to sea green with white marbling; Luster: Vitreous to silky; Crystal Structure: Triclinic; Specific Gravity: 2.74-2.88.

Formation & geological history

Formed in cavities within basaltic lavas through hydrothermal processes. Although pectolite is found globally, this blue variety (Larimar) is found only in the Dominican Republic and dates back to the Miocene epoch.

Uses & applications

Primarily used as a gemstone for jewelry (pendants, rings, earrings) and as a decorative or healing stone for collectors.

Geological facts

Larimar is often called the 'Dolphin Stone' or 'Atlantis Stone.' It was 'discovered' in 1974 by Miguel Méndez, who named it after his daughter Larissa and 'mar' (Spanish for sea).

Field identification & locations

Identify by its unique 'volcanic blue' color and white circular patterns that resemble sunlight reflecting on water. It is almost exclusively found in one remote area of the Bahoruco Mountains in the Dominican Republic.