White Quartz
Silicon Dioxide (SiO2)
mineral
Community gallery
All rocks & minerals
Every specimen the Rock Identifier community has discovered, from desert agates to deep-sea basalts.
Explore the rock & mineral encyclopedia
View all →
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Granite
Intrusive Felsic Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Red Sandstone
Sedimentary Arenite / Quartzose Sandstone
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Unknown white fragment
Unknown
unknown
K-Feldspar (Potassium Feldspar)
Potassium Feldspar (KAlSi3O8)
mineral
Granite
Intrusive igneous rock composed mainly of quartz, alkali feldspar, and plagioclase
igneous
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Galena
Lead Sulfide (PbS)
mineral
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Galena
Lead Sulfide (PbS)
mineral
Agate / Chalcedony Geode
Silicon Dioxide (SiO2)
sedimentary
Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Common Brown Pebble
Weathered Rock Fragment
sedimentary
Sandstone or Mudstone
Sedimentary Rock
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Flint
Microcrystalline quartz (SiO2)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Fossiliferous Shale
Fossiliferous Mudstone / Shale
sedimentary
Apache Tear
Obsidian (Volcanic Glass)
igneous
Granite
Intrusive Igneous Rock
igneous
Sandstone
Clastic Sedimentary Rock
sedimentary
Hematite
Hematite (Fe2O3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Vein in Greenstone
Metamorphic rock with quartz vein (SiO2 / mixed silicates)
metamorphic
Granodiorite
Phaneritic intrusive igneous rock
igneous
Red Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Lake Superior Agate
Silicon Dioxide (Chalcedony / Quartz), SiO2
gemstone
Porphyritic Basalt
Porphyritic Basalt with Plagioclase Phenocrysts
igneous
Pumice
Pumice (Volcanic Rock)
igneous
Geode
Quartz / Chalcedony nodule with mineralized cavity
sedimentary
Limestone
Calcareous Sedimentary Rock (CaCO3)
sedimentary
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Flint
Microcrystalline quartz (SiO2)
sedimentary
Pumice
Pumice (Felsic volcanic glass)
igneous
Sedimentary Rock with Crafts (Pet Rock)
Sedimentary rock decorated with synthetic materials
sedimentary
Marble
Metamorphic carbonate rock (Calcite/Dolomite)
metamorphic
White Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral