Caribbean Calcite
Calcite with Aragonite and Celestite · Decorative Stone / Semi-Precious Gemstone
Crystal System
Trigonal (Calcite) and Orthorhombic (Aragonite/Celestite), typically found in massive, microcrystalline, or banded habits.
Mineral Group
Carbonates (Calcite/Aragonite) and Sulfates (Celestite)
Chemical Formula
CaCO3 (Calcite/Aragonite) + SrSO4 (Celestite)
Formation Process
Sedimentary/Hydrothermal; formed through the precipitation of calcium carbonate in marine or groundwater environments, often involving the presence of strontium creating the blue highlights.
About This Crystal
The specimen is a carved crescent moon displaying a sea-foam to pale blue base with white, cream, and sandy-beige banding. It features a waxy to vitreous luster, translucent to opaque sections, and small pockets or 'druzy' vugs with teal-blue inclusions likely consisting of celestite.
Physical Characteristics
Color: Pale blue/mint green, white, tan; Streak: White; Cleavage: Perfect rhombohedral (in calcite components); Fracture: Uneven to subconchoidal; Specific Gravity: 2.7 to 2.9; Tenacity: Brittle; Fluorescence: May show weak pink or white under UV.
Optical Properties
Refractive Index: 1.486 - 1.658 (Birefringent); Opacity: Translucent to Opaque; Optical Phenomena: Banding and occasional druzy shimmer in vugs.
Hardness & Durability
Origin Region
Pakistan (exclusively found in the Khyber Pakhtunkhwa province, specifically the Karak district).
Hardness & Durability
Mohs Hardness: 3 (soft); Toughness: Low/Fragile; Stability: Sensitive to acids, heat, and sharp impacts. Not recommended for high-wear jewelry.
Care & Maintenance
Avoid acidic cleaners (vinegar, lemon), ultrasonic cleaners, and steam. Clean only with warm soapy water and a soft cloth. Store separately to avoid scratching by harder minerals like quartz.
Rarity & Value
Relatively new find (discovered circa 2019); uncommon due to limited geographic source. Value is determined by color intensity, the presence of druzy pockets, and carving craftsmanship.
Special Characteristics
Distinctive 'beach-like' appearance with color-zoning; contains natural vugs and tiny crystal-lined cavities; teal celestite inclusions provide a unique color contrast.
Lore & History
Historically a modern discovery with no ancient lore. In metaphysical circles, it is associated with the Crown and Third Eye chakras, believed to promote spiritual awakening, calm, and lucid dreaming. It is often called a 'stone of emotional transition'.