Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
Category
Browse sedimentary or metamorphic derived specimens identified by the Rock Identifier community.
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz (Milky Quartz / Quartzite)
Silicon Dioxide (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky/Clear)
Silicon Dioxide (SiO2)
Pyrite
Iron Pyrite (FeS2)
Hematite
Iron(III) oxide (Fe2O3)
Milky Quartz
Silicon Dioxide (SiO2)
Green Calcite
Calcium Carbonate (CaCO3)
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Hematite
Iron(III) oxide (Fe2O3)
Clear Quartz
Silicon Dioxide (SiO2)
Milky Quartz or Moonstone
Silicon Dioxide (SiO2) or Potassium Aluminum Silicate (KAlSi3O8)
Quartz (Milky and Bull Quartz)
Silicon Dioxide (SiO2)
Mixed Tumbled Stones Collection
Mixed Silicates and Carbonates (Quartz, Amorphous Silica, Carbonates)
Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Orange Calcite
Calcium Carbonate (CaCO3)
Faceted Clear Quartz
Crystalline Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Magnetite
Magnetite (Fe3O4)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Mixed Tumbled Gemstones and River Rocks
Mixed Decorative Stones (predominantly Silicon Dioxide - SiO2 variants)
Emerald
Beryl (Be₃Al₂(SiO₃)‑₆) with Chromium/Vanadium impurities
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Galena
Lead Sulfide (PbS)
Milky Quartz
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)