Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
mineral
Category
Sedimentary Or Igneous
Browse sedimentary or igneous specimens identified by the Rock Identifier community.
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Sodalite
Na8(Al6Si6O24)Cl2
mineral
Porphyry
Porphyritic Igneous Rock
igneous
Basalt
Mafic Igneous Rock
igneous
Basalt (with Iron Staining)
Mafic Igneous Rock
igneous
River Pebble (Basalt or Gabbro)
Mafic Igneous Rock
igneous
Basalt
Mafic Igneous Rock
igneous
Basalt (Weathered)
Mafic Igneous Rock
igneous
Basalt
Mafic Igneous Rock
igneous
Basalt
Mafic Igneous Rock
igneous
Basalt
Mafic Igneous Rock
igneous
Basalt (Vesicular)
Basalt (Extrusive Igneous)
igneous
Weathered Basalt with Iron Staining
Mafic Igneous Rock
igneous
Diorite (Polished River Stone)
Intrusive Igneous Diorite
igneous
Basalt
Mafic Igneous Pebble
igneous
Diorite (River Cobble)
Intrusive Igneous Diorite
igneous
Vesicular Basalt
Mafic Igneous Rock
igneous
Basalt with Iron Oxidation
Mafic Igneous Basalt
igneous
Basalt
Mafic Igneous Rock
igneous
Basalt
Mafic Igneous Basalt
igneous
Rose Quartz
SiO2 (Silicon Dioxide with trace Titanium, Iron, or Manganese)
mineral
Agate
SiO2
mineral
Hypersthene (or Enstatite/Ferrosilite)
Orthopyroxene series (Mg,Fe)SiO3 - specifically, historically hypersthene (intermediate member) now referred to as Enstatite (Mg-rich) or Ferrosilite (Fe-rich)
Mineral
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
sedimentary
Sandstone
Arenite (SiO2 principal)
sedimentary
Biotite in Host Matrix
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Diorite (Salt and Pepper Rock)
Diorite
igneous
Natural Gemstone Cabochons (Ruby, Moonstone, Emerald, Citrine)
Ruby (Al2O3:Cr), Moonstone (KAlSi3O8), Emerald (Be3Al2(SiO3)6:Cr), Citrine (SiO2)
mineral
Basalt
Basalt
igneous
Granite
Granite
Igneous
Quartz
Silicon Dioxide (SiO2)
Mineral
Hypersthene
Hypersthene ((Mg,Fe)SiO₃)
Mineral
Brachiopod Fossil in Sedimentary Matrix
Phylum Brachiopoda in Siltstone/Mudstone matrix
fossil
Granite
Granite (phaneitic intrusive igneous rock)
igneous
Quartz in Basalt (Xenocryst)
Silicon Dioxide (SiO2) in Mafic Igneous Volcanic Rock
Igneous
Granite Pebble
Granite (composed primarily of Quartz SiO2, Feldspar KAlSi3O8, and Biotite/Hornblende)
igneous
Granite
Granite (Phaneritic Igneous Rock)
igneous
Granite
Felsic Plutonic Rock (Granite)
igneous
Granite
Granite
igneous
Sandstone
Sandstone ( преимущественно SiO2 )
sedimentary
Shale
Laminated Mudstone (Shale)
sedimentary
Sandstone
Arenite
sedimentary