Pink Sapphire
Corundum var. Pink Sapphire · Precious Gemstone
Crystal System
Trigonal; typically hexangular prismatic, tabular, or rhombohedral habit
Mineral Group
Oxides (Hematite group)
Chemical Formula
Al2O3 with trace amounts of Chromium (Cr) and Iron (Fe)
Formation Process
Metamorphic or Igneous; forms under high pressure and temperature in aluminum-rich, silica-poor environments like marble, schist, or pegmatites.
About This Crystal
This specimen is a small, transparent, pink-colored gemstone. It exhibits a vitreous luster and appears to have a faceted cut or naturally sharp faces. The color is a vibrant bubblegum pink with lavender undertones, appearing relatively clean but with a visible internal shadow or inclusion on one side.
Physical Characteristics
Color: Pink; Streak: White; Cleavage: None (has parting); Fracture: Conchoidal to uneven; Specific Gravity: 3.98-4.06; Tenacity: Brittle; Fluorescence: Strong red/pink under longwave UV (due to chromium content).
Optical Properties
Refractive Index: 1.762-1.770; Birefringence: 0.008; Pleochroism: Strong (shades of pink and light orange-pink); Dispersion: 0.018; Doubly refractive (Uniaxial negative).
Hardness & Durability
Origin Region
Madagascar, Sri Lanka, Myanmar (Burma), and East Africa; typically found in alluvial deposits or metamorphic host rocks.
Hardness & Durability
Mohs Hardness: 9; Toughness: Excellent/High; Stability: Excellent stability to heat and light, though very high heat can alter color; one of the most durable gemstones for jewelry.
Care & Maintenance
Clean with warm soapy water, ultrasonic, or steam cleaners; store separately to avoid scratching softer stones; generally resistant to most chemicals except boiling phosphoric acid.
Rarity & Value
Valuable and relatively rare; value is primarily determined by color saturation (vibrancy), clarity, and carat weight. Larger, unheated specimens are significantly more expensive. Heat treatment is common to enhance clarity.
Special Characteristics
Strong red fluorescence under UV light; may show silk-like rutile inclusions or color zoning in natural specimens; high refractive index gives it great brilliance.
Lore & History
Historically used as a symbol of love and compassion; popular in modern times as a diamond alternative for engagement rings. In traditional lore, it is associated with emotional resilience and the Heart Chakra.