mineral

Larimar

Blue Pectolite (NaCa2Si3O8(OH))

Hardness: 4.5-5.0 on Mohs scale; Color: Sky blue to deep blue with white swirling patterns; Luster: Vitreous to silky; Crystal Structure: Triclinic; Cleavage: Perfect in two directions; Specific Gravity: 2.7-2.9.

Hardness: 4
Color: Sky blue to deep blue with white swirling patterns
Luster: Vitreous to silky

Identified June 11, 2026More mineral →

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Physical properties

Formation & geological history

Formed through hydrothermal processes in volcanic basalt cavities where calcium was replaced by copper, giving it its unique blue hue. Primary deposits are Miocine in age, located in the Bahoruco mountain range.

Uses & applications

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

Geological facts

Larimar is found in only one location in the world: the Dominican Republic. It was originally discovered in 1916 but rediscovered in 1974 by Miguel M)ndez, who named it after his daughter Larissa and the Spanish word for sea (mar).

Field identification & locations

Identify by its unique 'sea-foam' or 'crayola blue' swirling white and blue patterns. It is found specifically in the Filipinas mine in Barahona. To maintain color, collectors should keep it out of direct sunlight as the blue can fade over time.