Quartz (Milky or Yellow/Citrine Quartz)
Silicon Dioxide (SiO2)
mineral
Category
Mineral (Native Element Alloy)
Browse mineral (native element alloy) specimens identified by the Rock Identifier community.
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Granite and Mixed Landscape Gravel
Plutonic Igneous Rock / Weathered Alluvium
igneous
Sandstone
Quartzose Sandstone (Sedimentary Rock)
sedimentary
Granite
Felsic intrusive igneous rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Sandstone and Mixed Rock Assemblage
Clastic Sedimentary Rock / Quartz Arenite
sedimentary
Granite
Phaneritic Felsic Igneous Rock
igneous
Dyed Dragon Vein Agate
Silicon Dioxide (SiO2) with artificial pigment
mineral
White Quartz Star
Silicon Dioxide (SiO2)
mineral
Quartz with Arsenopyrite
Silicon Dioxide (SiO2) with Iron Arsenic Sulfide (FeAsS)
mineral
Moss Agate
Chalcedony (SiO2) with dendritic inclusions of Manganese or Iron oxide
mineral
Prehnite
Prehnite (Ca2Al2Si3O10(OH)2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Biotite (Mica)
Biotite group (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Kunzite
Spodumene (LiAlSi2O6), variety Kunzite
Mineral
Diorite
Phaneritic intermediate plutonic rock
Igneous
Granodiorite
Granodiorite (containing Plagioclase, Quartz, and K-feldspar)
igneous
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Dyed Agate
Silicon Dioxide (SiO2) - Chalcedony variety
sedimentary
Magnetic Sand Grain / Magnetite Pellet
Magnetite (Fe3O4)
mineral
Sandstone (Red Sandstone)
Arenite (SiO2 based with Fe2O3 staining)
sedimentary
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Golden Calcite
Calcium Carbonate (CaCO3)
mineral
Nephrite Jade (or Serpentine)
Nephrite (a variety of amphibole mineral tremolite-actinolite) or Serpentine Group minerals
Mineral/Rock
Smoky Quartz (Tumbled)
Smoky Quartz (SiO2 - Silicon Dioxide)
mineral
White Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz vein fragments on Sandstone cobble
SiO2 (Silicon Dioxide)
mineral
Sodalite
Sodium aluminum silicate chloride (Na8(Al6Si6O24)Cl2)
mineral
Green Granite / Verd Antique
Serpentinite / Metasomatized Peridotite
metamorphic
Banded Ironstone / Jasper Siltstone
Siltstone with Iron Oxide Hydrates (SiO2 with Fe2O3/FeO(OH))
sedimentary
Petrified Wood
Silicified Wood (Silicon Dioxide - SiO2)
fossil
Sandstone Concretion
Carbonate-cemented Sandstone Concretion
sedimentary
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Sandstone (Yellow/Siltstone variant)
Arenite (SiO2 primarily)
sedimentary
Sandstone
Arenite
sedimentary
Dendritic Agate
Silicon Dioxide (SiO2) with Manganese/Iron Oxide inclusions
mineral
Limonitic Iron Ore / Goethite
Hydrated Iron(III) oxide-hydroxide (primarily FeO(OH)·nH2O)
sedimentary
Sandstone (Ferruginous)
Arenite (Fe-rich)
sedimentary