mineral

Larimar

Pectolite (NaCa2Si3O8(OH))

AI-generated identification · may be incorrect

Hardness: 4.5-5.0 on Mohs scale; Color: sky blue, turquoise blue, to white; Luster: vitreous to silky; Crystal structure: triclinic; Cleavage: perfect in two directions; Specific gravity: 2.7-2.9

Hardness: 4
Color: sky blue, turquoise blue, to white
Luster: vitreous to silky

Identified June 5, 2026More mineral →

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Physical properties

Hardness: 4.5-5.0 on Mohs scale; Color: sky blue, turquoise blue, to white; Luster: vitreous to silky; Crystal structure: triclinic; Cleavage: perfect in two directions; Specific gravity: 2.7-2.9

Formation & geological history

Formed through volcanic activity where pectolite crystals filled cavities in basaltic lavas. It is specifically found in Miocene-aged volcanic rocks in the Caribbean.

Uses & applications

Predominantly used as a gemstone for jewelry (pendants, rings, earrings) and as a lapidary material for collectors due to its unique color and rarity.

Geological facts

Larimar is known as the 'Dolphin Stone' or 'Atlantis Stone.' It was discovered in 1916 but rediscovered in 1974 by Miguel Méndez, who named it after his daughter Larissa and the Spanish word for sea, 'mar.'

Field identification & locations

Identify by its distinctive 'Caribbean blue' color and white marbling/webbing patterns. It is found exclusively in one location: the Filipinas Mine in Los Checheses, Dominican Republic.