mineral

Larimar

Pectolite

AI-generated identification · may be incorrect

Hardness: 4.5-5; Color: light blue, white, greenish-blue; Luster: silky to vitreous; Crystal structure: triclinic; Cleavage: perfect on {100} and {001}; Specific gravity: 2.74-2.88.

Hardness: 4
Color: light blue, white, greenish-blue
Luster: silky to vitreous

Identified August 19, 2026More mineral →

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Physical properties

Hardness: 4.5-5; Color: light blue, white, greenish-blue; Luster: silky to vitreous; Crystal structure: triclinic; Cleavage: perfect on {100} and {001}; Specific gravity: 2.74-2.88.

Formation & geological history

Formed in cavities in basaltic rocks associated with volcanic activity. Only found in the Dominican Republic.

Uses & applications

Primarily used as a gemstone in jewelry due to its striking blue color and patterns.

Geological facts

Larimar was discovered in 1916 but was not commercialized until 1974. Its name is a combination of 'Larissa' (the daughter of the man who rediscovered it) and 'mar' (Spanish for sea).

Field identification & locations

Identify by its unique sky-blue color with white marbling, found exclusively in the Dominican Republic. It is relatively soft, so care should be taken to avoid scratching.