Opalite
Synthetic Glass (SiO2 + impurities)
Category
Browse mineral (man made glass, not natural) specimens identified by the Rock Identifier community.
Opalite
Synthetic Glass (SiO2 + impurities)
Opalite Egg
Synthetic Glass (Simulated Opal)
Polished opalite (likely man-made opalescent glass)
Opalite is a commercial name, not a mineral; typically opalescent glass, often soda-lime silicate glass
Opalite
Synthetic Glass (Hydrated Silica Simulant)
Blue Obsidian
Volcanic Glass (Silica, SiO2)
Sea Glass
Man-made silicate glass
Blue glassy gemstone-like specimen
Indeterminate; possibly dyed or treated turquoise, blue apatite, or man-made glass
Opalite (Man-made Glass)
Fused glass (typically made of dolomite and metal opacifiers)
Opalite glass sphere (likely synthetic imitation)
Man-made opalescent glass; not natural opal
Opalite
Synthetic Silicon Dioxide (SiO2)
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Rose Quartz and Cherry Quartz (Dyed Glass/Quartz)
Silicon Dioxide (SiO2) with inclusions/dye
Blue Diamond
Carbon with Boron impurities (C)
Not a rock, mineral, or geological specimen
Opalite
Synthetic Glass / Man-made Opal Simulant
Opalite
Synthetic Glass (Silica-based)
Opalite
Man-made Opalized Glass (Synthetic Glass)
Opalite (likely man-made glass)
Opalite; amorphous silica glass, not a natural mineral
Opalite
Synthetically produced glass (Silicon Dioxide with metallic inclusions)
Sea Glass
Man-made silicate glass
Opalite (Man-made Glass)
Synthetic Opalised Glass
Goldstone
Man-made glass infused with copper particles
Tumbled opalite (likely man-made glass)
Opalite glass; a synthetic opalescent glass, not a natural mineral species
N/A - Non-Geological Item
Opalite
Synthetic Opalised Glass
Opalite
Synthetic Glass (Simulated Opal)
Diamond (or Simulant)
Carbon (C) or relevant simulant formula (e.g., ZrO2 for Cubic Zirconia)
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
Opalite (Synthetic Moonstone/Opal)
Synthetic Silica Glass
Green sea glass (likely bottle glass)
Man-made soda-lime silicate glass; not a natural mineral
Sea Glass
Amorphous silicon dioxide (man-made glass weathered by nature)
Obsidian
Volcanic glass
Black tumbled stone, possibly obsidian
Obsidian (volcanic glass; predominantly SiO₂), identification uncertain from image
Polished blue glassy mineral specimen, likely sodalite or blue aventurine
Most consistent with sodalite (Na₈Al₆Si₆O₂₄Cl₂), though dyed quartzite or blue glass cannot be excluded from the photograph
Opalite
Man-made glass (traditionally simulated Opal)
Opalite (likely imitation opal glass)
Man-made opalescent glass; not a natural mineral (often sold as opalite)
Opalite crescent pendant
Opalite (man-made opalescent glass; not a natural mineral)
Tumbled milky quartz
Quartz (SiO₂), cryptocrystalline-to-massive variety
Aura Quartz (Titanium/Rainbow Quartz)
SiO2 (Silicon Dioxide) with metallic coating
Opalite (Man-made Glass)
Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)
Opalite
Synthetic Opalized Glass (SiO2 + additives)
Goldstone (brown goldstone)
Man-made aventurine glass, typically copper-bearing silica glass