
Opalite
Synthetic Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 5-5.5 on Mohs scale; Color: Milky white with iridescent blue and orange shimmers; Luster: Vitreous to pearly; Crystal structure: Amorphous; Cleavage: None/Conchoidal fracture; Specific gravity: ~2.1
- Hardness
- 5-5
- Color
- Milky white with iridescent blue and orange shimmers
- Luster
- Vitreous to pearly
Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Formation & geological history
Uses & applications
Geological facts
Field identification & locations
More like this
Other mineral specimens
Mineral Sand (Heavy Mineral Sand Concentrate)
Placer deposit concentrate containing minerals such as ilmenite, rutile, zircon, and magnetite
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
Calcite–fluorite mineral specimen with iron-oxide staining
Calcite (CaCO₃), likely fluorite (CaF₂), with possible quartz and iron/manganese oxides
Soil with Mineral Detritus and Quartz Fragments
Regolith / Silicate Mineral Aggregate
Septarian Pebble
Septarian nodule / Concretion
Limonite / Goethite (Iron Ore Mineral nodule)
FeO(OH)·nH2O / FeO(OH)