mineral
Larimar
Blue Pectolite (NaCa2Si3O8(OH))
AI-generated identification · may be incorrectHardness: 4.5-5.0 on Mohs scale; Color: Sky blue to green-blue with white marbling; Luster: Vitreous to silky; Crystal Structure: Triclinic; Cleavage: Perfect in two directions; Specific Gravity: 2.7-2.9.
- Hardness
- 4
- Color
- Sky blue to green-blue with white marbling
- Luster
- Vitreous to silky
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Physical properties
Hardness: 4.5-5.0 on Mohs scale; Color: Sky blue to green-blue with white marbling; Luster: Vitreous to silky; Crystal Structure: Triclinic; Cleavage: Perfect in two directions; Specific Gravity: 2.7-2.9.
Formation & geological history
Formed in cavities within basaltic lavas through hydrothermal activity where copper replaces calcium, giving it the blue hue. Primarily Miocene in geological age.
Uses & applications
Exclusively used in jewelry (cabochons, beads, rings) and as a collector's mineral.
Geological facts
It is also known as the Stefilia's Stone or Atlantis Stone. It is found in only one location in the world: a remote mountain range in the Dominican Republic.
Field identification & locations
Identify by its unique 'sea-and-sky' patterns and chatoyancy. In the field, it is found in the Filipinas Mine in Los Chupaderos. Collectors should look for intense blue saturation with clear white webbing.
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