Opalite
Synthetic Glass (Simulated Opal) · Decorative Stone / Simulant
Crystal System
Amorphous (Non-crystalline); usually cut into hex-faceted or obelisk habits
Mineral Group
Artificial Glass (Man-made)
Chemical Formula
SiO2 (+ trace oxides like TiO2)
Formation Process
Industrial glass manufacturing (melting silica and adding opacifiers/coloring agents)
About This Crystal
Milky, translucent material with a bluish tint against dark backgrounds and a warm, orangey/yellow glow when backlit (opalescent effect). Smooth, vitreous luster.
Physical Characteristics
Color: Milky white to blue; Streak: White; Fracture: Conchoidal; Specific Gravity: ~2.4; Fluorescence: Variable, often none.
Optical Properties
Isotropic (Singly Refractive); RI: ~1.47-1.52; exhibits 'Tyndall scattering' (blue/orange color shift).
Hardness & Durability
Origin Region
Mainly mass-produced in China and India; no geological source
Hardness & Durability
Mohs hardness 5 to 6; brittle; sensitive to scratches and impact; moderate toughness.
Care & Maintenance
Avoid chemicals and ultrasonics; clean with warm soapy water and soft cloth; store away from harder gems like quartz.
Rarity & Value
Very common and inexpensive; mass-produced for costume jewelry; value is based on craft rather than material.
Special Characteristics
Pronounced opalescence (glowing look) and color-shift properties depending on the lighting angle.
Lore & History
Modern creation from the 20th century; traditionally associated with youth, playfulness, and emotional healing in modern crystal lore.