gemstone

Larimar

Pectolite (Sodium Calcium Silicate Hydroxide, NaCa2Si3O8(OH))

Hardness: 4.5 to 5 on the Mohs scale; Color: White, light blue, green-blue, deep blue; Luster: Vitreous to silky; Crystal Structure: Triclinic; Cleavage: Perfect in two directions; Specific Gravity: 2.74 - 2.88

Hardness: 4
Color: White, light blue, green-blue, deep blue
Luster: Vitreous to silky

Identified August 2, 2026More gemstone →

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Physical properties

Formation & geological history

Formed in volcanic cavities (vesicles) within Miocene-aged basaltic andesites and lavas through hydrothermal alteration and deposition of pectolite-rich solutions.

Uses & applications

Primarily used in jewelry making, carved decorative items, and as a collectible gemstone.

Geological facts

Larimar is rare and found in only one place on Earth. It is also known as the 'Atlantis Stone' due to a psychic's claim that the Dominican Republic was part of the lost continent.

Field identification & locations

Easily identified by its unique mottled white and blue oceanic patterns resembling sunlight dancing on Caribbean water. Found exclusively in the Barahona province of the Dominican Republic.

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