Milky Quartz with Chlorite/Mica inclusions
Silicon Dioxide (SiO2) with inclusions
mineral
Category
Not A Rock (Man Made Polymer)
Browse not a rock (man made polymer) specimens identified by the Rock Identifier community.
Granite Cobble
Felsic Intrusive Igneous Rock (Granite)
igneous
Tree Agate
Dendritic Agate (Silicon Dioxide, SiO2)
Mineral
Geode with Quartz Crystal Cavity
Silicon Dioxide (SiO2) in Calcareous/Siliceous Matrix
sedimentary
Granitoid (Granite/Diorite)
Course-grained Plutonic Igneous Rock
igneous
Jasper with Hematite inclusions
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)
sedimentary
Jasper with Quartz Veining
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Mookaite Jasper
Silicified Radiolarite (SiO2)
sedimentary
Yellow Quartzite (River Pebble)
Quartzite (primarily SiO2)
metamorphic
Leopard Skin Jasper
Jasper (Silicon Dioxide with impurities), SiO2
sedimentary
Jasper or Chalcedony
Microcrystalline Quartz (SiO2)
sedimentary
Jasper with Quartz inclusions
Silicon Dioxide (SiO2)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Asphalt (Bituminous Pavement Bit)
Bitumen-bound aggregate (Petrochemical-bound composite)
sedimentary (anthropogenic/technogenic)
Carnelian Agate (with Quartz/Chalcedony)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Sandstone
Arenite (primarily Quartz, SiO2)
sedimentary
Orca Agate (Blue Chalcedony)
Silicon Dioxide (SiO2)
mineral
Granite Cobble
Granite (Phaneritic Igneous Rock)
igneous
Granite
Phaneritic Igneous Rock (Granitic)
igneous
African Turquoise (Jasper)
Polychrome African Jasper (often marketed as 'African Turquoise' due to its color, but it is not true turquoise)
Rock
Granite
Granite (Felsic Plutonic Rock)
igneous
Vesicular Basalt with Secondary Mineral Infill
Mafic Volcanic Rock (Basalt)
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Basalt (Polished Pebble)
Basalt (Mafic volcanic rock)
igneous
Granite
Intrusive igneous felsic rock
igneous
Polished Basalt
Basalt (Mafic volcanic rock)
Igneous
Ferruginous Sandstone (Red Sandstone)
Arenite with Hematite/Limonite cement
sedimentary
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
metamorphic
Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace titanium, iron, or manganese
mineral
Chert (Nodule)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)
mineral
Sandstone
Arenite (SiO2 primarily)
sedimentary
Basalt with Quartz Veins
Vesicular or aphanitic Basalt with SiO2 (Quartz) intrusions
Igneous
Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide mixture)
mineral
Travertine (Calcareous Tufa)
Calcium Carbonate (CaCO3)
sedimentary
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Mineral
Basalt River Cobble
Basalt (Aphanitic Mafic Volcanic Rock)
igneous
Sandstone
Arenite (primarily SiO2)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite (with Iron Oxide cement)
sedimentary