Larimar

Pectolite (NaCa2Si3O8(OH))

Rock Type: mineral

Larimar

Physical Properties

Hardness: 4.5 to 5.0 (Mohs scale), Color: Sky blue to deep blue with white swirling patterns, Luster: Vitreous to silky, Crystal Structure: Triclinic, Cleavage: Perfect, Specific Gravity: 2.7 to 2.9

Formation & Geological History

Formed through volcanic activity where pectolite filled cavities in basaltic lava; exclusively found in the Los Chupaderos mine in the Dominican Republic. Formed during the Miocene epoch.

Uses & Applications

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

Geological Facts

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

Field Identification & Locations

Identify in the field by its distinct sea-blue color and white marbling. It is unique to the Dominican Republic. Collectors should look for deep blues with high contrast patterns.

Identified on: 4/30/2026

Mode: Standard