Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Category
Igneous And Mineral
Browse igneous and mineral specimens identified by the Rock Identifier community.
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Agate Jasper
Cryptocrystalline Quartz (SiO2) with impurities
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Fluorite (Green Fluorite)
Calcium Fluoride (CaF2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Sunstone (Feldspar)
Plagioclase Feldspar ((Ca, Na)(Al, Si)4O8)
mineral
Clear Quartz Cluster
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Common or Milky)
Silicon Dioxide (SiO2)
mineral
Porphyritic Basalt with K-Feldspar Phenocryst
Porphyritic Basic Igneous Rock (with Potassium Feldspar)
igneous
Greenstone
Protolith of basalt, diabase, or gabbro; often contains minerals like chlorite, actinolite, and epidote
metamorphic
Granite
Phaneritic plutonic rock (Quartz, Feldspar, Mica)
igneous
Aventurine (Green Quartz)
Silicon dioxide with inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite or Hematite-rich Ore
Magnetite (Fe3O4) or Hematite (Fe2O3)
mineral
Sapphire (Rough Corundum)
Corundum (Aluminum Oxide, Al2O3)
mineral
Ruby (set in a gold pendant)
Ruby (Variety of Corundum, Al2O3)
mineral
Granite
Phaneritic Igneous Rock (Granite)
igneous
Granite (Weathered)
Phaneritic Felsic Igneous Rock
Igneous
Granite
Phaneritic Igneous Rock (Granite)
igneous
Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Obsidian
Volcanic Glass (70-75% SiO2)
igneous
Obsidian
Volcanic Glass (SiO2 + impurities)
igneous
Granite Pebble
Granite (Phaneritic intrusive igneous rock)
igneous
Ruby (Raw Corundum)
Alumina (Al2O3) with Chromium traces
gemstone
Obsidian
Obsidian (Volcanic Glass)
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Granite
Felsic intrusive igneous rock (Quartz, Feldspar, Mica)
igneous
Amazonite
Potassium Feldspar (KAlSi3O8)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Rough Quartz (with Feldspar inclusions)
Silicon Dioxide (SiO2)
Mineral
Granite Pebble
Granite (Felsic intrusive igneous rock)
igneous
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral