Rose Quartz
Silicon Dioxide (SiO2)
mineral
Category
Not A Rock Or Mineral
Browse not a rock or mineral specimens identified by the Rock Identifier community.
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Red Jasper with Quartz Veining
Jasper (Silicon Dioxide, SiO2) with Quartz (SiO2) inclusions
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Granitic Gneiss
Gneiss (Metamorphic rock of granitic composition)
metamorphic
Sandstone (Pet Rock)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Granite Cobble
Felsic Intrusive Igneous Rock (Granite)
igneous
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
sedimentary
Olivine in Basalt (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4 (Mineral) / Scoriaceous Basalt (Host Rock)
igneous
Quartz Geode
Silicon Dioxide (SiO2) in Geode form
sedimentary
Granite
Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)
igneous
Gossan (Iron Hat) with Quartz and Chlorite
Limonite/Goethite-rich Gossan (FeO(OH)·nH2O) with inclusions of Quartz and Chlorite
Mineral/Metamorphic Substrate
Kambaba Jasper
Stromatolite / Fossilized Algae (Rhyolitic structure)
sedimentary
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
River Cobble (likely Sandstone or Siltstone type)
Sandstone or Siltstone (common rock types that form river cobbles)
Sedimentary Rock (specifically a clastic sedimentary rock formed into a cobble)
Sandstone with Manganese Dendrites/Oxide coatings
Arenite with Pyrolusite and Romanechite (MnO2)
sedimentary
Sandstone (Quartzose)
Sandstone (clastic sedimentary rock, primarily SiO2)
sedimentary
Granite
Plutonic Igneous Rock (composed typically of SiO2, Al2O3, K2O, Na2O, CaO)
igneous
Obsidian
Volcanic Glass (SiO2)
igneous
Vesicular Basalt (or Porphyritic Scoria)
Vesicular Basalt
igneous
Druzy Quartz (on Chalcedony/Agate base)
Silicon Dioxide (SiO2)
mineral
Granite
Granite (Felsic Plutonic Rock)
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Gold-Bearing Quartz
Silicon Dioxide with Native Gold (SiO2 + Au)
mineral
Gneiss (High-Grade Metamorphic Rock)
Gneiss (primarily composed of Quartz, Feldspar, and Mica/Amphiboles)
metamorphic
Sandstone
Arenite (SiO2 based)
sedimentary
White Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Weathered Sandstone with Algae Growth
Arenite
sedimentary
Sandstone (likely Red/Brown Sandstone)
Arenite (SiO2 based)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (likely Quartz Sandstone)
Arenite (composed primarily of SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Sandstone (Ferruginous)
Sandstone (primarily SiO2 with Iron Oxide cement)
sedimentary
Sandstone (likely Calcareous or Micaceous)
Clastic sedimentary rock (primarily Quartz with Cementing Agents)
sedimentary
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary
Dalmatian Jasper
Dalmatian Stone (a microcrystalline quartz and feldspar rock with arfvedsonite)
igneous
Quartz Geode (partially opened)
Silicon Dioxide (SiO2) with iron staining
mineral
Gold Nugget
Native Gold (Au)
mineral