Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Category
Browse mineral (gemstone variety of beryl) specimens identified by the Rock Identifier community.
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Specular Hematite (Iron Ore)
Iron(III) oxide (Fe2O3)
Agate
Agate (Silicon Dioxide - SiO2)
Tiger's Eye
Tiger's eye (Pseudomorph of Quartz after Crocidolite), SiO2
Blue Lace Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
Jasper
Jasper (Cryptocrystalline variety of Quartz, SiO2)
Agate (specifically Waterline or Onyx-type Agate)
Silicon Dioxide (SiO2) - variety Chalcedony
Blue Chalcedony
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon dioxide (SiO2)
Banded Agate
Silicon Dioxide (SiO2)
Green Chalcedony (likely Chrysoprase or Green Onyx)
Silicon Dioxide (SiO2) with trace nickel or chromium inclusions
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Chalcedony (Agate/Chert)
Silicon Dioxide (SiO2)
Chalcedony (Agate)
Silicon Dioxide (SiO2)
Orange Quartz with Hematite inclusions
Quartz (SiO2) with Hematite (Fe2O3) inclusions
Jasper (Milky/Cream Variety)
Silicon Dioxide (SiO2) - variety of Chalcedony
Sandstone (likely River-tumbled Picture Sandstone)
Arenite (predominantly SiO2 with iron oxide impurities)
Citrine Quartz Sphere
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Clear Quartz (Tumbled)
Silicon Dioxide (SiO2)
Cloudy Quartz
Quartz (Silicon Dioxide, SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Opalite
Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
Jasper with Agate Inclusions
Silicon Dioxide (SiO2) - variety of Quartz/Chert
Tiger's Eye (dark/grey variant)
Pseudomorph of Quartz after Crocidolite (SiO2)
Pearl
Calcium Carbonate (Aragonite) - CaCO3
Peridot (Olivine)
Olivine ((Mg, Fe)2SiO4)
Jasper (specifically Yellow/Red Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Banded Calcite (known as Mexican Onyx or Calcite Alabaster)
Calcium Carbonate (CaCO3)
Fancy Jasper
Silicon Dioxide (SiO2) with impurities