Quartz Geode
Silicon Dioxide (SiO2)
Category
Browse mineral like byproduct (often mistaken for igneous rock or meteorite) specimens identified by the Rock Identifier community.
Quartz Geode
Silicon Dioxide (SiO2)
Basalt
Basalt (Mafic volcanic rock)
Basalt
Basalt (Mafic volcanic rock)
Gneiss Pebble
Gneiss (Metamorphic Foliated Rock)
Dendritic Quartz
Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions
Jasper (Banded Jasper / Chert)
Silicon Dioxide (SiO2 with iron oxide inclusions)
Sandstone
Arenite (SiO2 primarily)
Blue Moss Agate / Blue Chalcedony
Silicon Dioxide (SiO2)
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
Basalt (Greenstone)
Amygdaloidal Basalt / Chloritized Basalt
Chalcedony (Agate)
Silicon Dioxide (SiO2)
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Milky Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Amazonite
Microcline Feldspar (KAlSi3O8)
Jasper / Quartz Pebble
Silicon dioxide (SiO2) microcrystalline quartz
Sodalite
Na8(Al6Si6O24)Cl2
Quartz Vein in Host Rock
Quartz (SiO2) in metamorphic host rock (likely schist or phyllite)
Yellow Quartz Pebble
SiO2 (Silicon Dioxide)
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Kaolinite (Chalky Clay)
Kaolinite (Al2Si2O5(OH)4)
Sandstone (Graywacke)
Clastic Sedimentary Rock (Lithic Sandstone)
Quartz on Host Rock
Silicon Dioxide (SiO2)
Sandstone
Sandstone (clastic sedimentary rock)
Smelter Slag
Anthropogenic Silicate Slag
Dalmatian Stone
Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite
Milky Quartz
Silicon Dioxide (SiO2)
Chalcedony (Quartz Var.)
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Feldspar
Potassium Feldspar (KAlSi3O8)
Rhyolite
Extrusive igneous rock (felsic)
Greenschist
Greenschist (Chlorite-actinolite schist)
Carborundum (Silicon Carbide)
Silicon carbide (SiC)
Unakite
Unakite Epidosite (Granite with epidote and orthoclase)
Granite Gneiss with Garnet
Garnetiferous Gneiss
Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide cement)
Pink Granite
Phaneritic Plutonic Felsic Rock (K-feldspar rich)
Granite
Granite
Greenstone
Greenschist / Meta-basalt
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Vesicular Basalt
Basalt (Mafic volcanic rock)