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Entry № 259

Larimar

Acid-sodium-calcium silicate

The dolphin stone of the Caribbean.

Chakra

Throat · Heart

Element

Water

Zodiac

Leo · Pisces

Larimar

I. The Metaphysical Reading

How the stone has been held.

Larimar is sometimes called the dolphin stone and is linked to the throat chakra, clear communication, and the cooling energy of the sea. Practitioners use it to ease fiery emotions and to speak with both compassion and precision.

Chakra
Throat · Heart
Element
Water
Zodiac
Leo · Pisces
Keynote
The dolphin stone of the Caribbean.

II. The Scientific Reading

What the lattice actually does.

Larimar is a rare blue variety of pectolite, a hydrous sodium-calcium silicate. Its distinctive turquoise to sky-blue color is caused by trace copper replacing calcium in the structure. It is found only in the volcanic rocks of the Dominican Republic, making it a single-source gemstone.

Formula
NaCa₂Si₃O₈(OH) (pectolite)
System
Triclinic
Hardness
4.5 – 5 (Mohs)
Provenance
Dominican Republic (Barahona province)

References & Sources

Independent mineralogical references used to verify the scientific details above.

Mineral Profile

Fact Sheet

Chemical Formula
NaCa₂Si₃O₈(OH) (pectolite)
Crystal System
Triclinic
Mohs Hardness
4.5 – 5 (Mohs)
Density
2.74 – 2.88 g/cm³
Refractive Index
1.59 – 1.63
Provenance
Dominican Republic (Barahona province)
Color Origin
Blue to blue-green from copper substitution

Related Crystals

Stones that share this lattice

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Larvikite

Blue flash from ancient Norwegian stone.