Green Quartz (Prasiolite/Adventurine)
Silicon Dioxide (SiO2) with inclusions
Category
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
Green Quartz (Prasiolite/Adventurine)
Silicon Dioxide (SiO2) with inclusions
Sandstone
Arenite (primarily Quartz, SiO2)
Almandine Garnet
Almandine (Fe3Al2Si3O12)
Sandstone (Quartz Arenite)
Clastic Sedimentary Rock - Quartz Arenite
Note: No specimen visible
Geode (Unopened)
Siliceous Septarian Concretion / Geode (SiO2)
Sunstone
Oligoclase (Feldspar variety), (Na,Ca)(Si,Al)4O8
Pyrite
Pyrite (FeS₂)
Serpentinite
Serpentinite (containing minerals of the Serpentine subgroup: Antigorite, Lizardite, and Chrysotile; formula (Mg,Fe)3Si2O5(OH)4)
Ferruginous Sandstone
Clastic Sedimentary Rock (Iron-rich)
Sandstone
Clastic sedimentary rock (Quartz arenite/Arkose)
Sandstone with Calcite Vein
Clastic sedimentary rock (primarily SiO2) with Calcium Carbonate (CaCO3) infilling
Rose Quartz
SiO2 (Silicon Dioxide with trace inclusions of dumortierite)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Desert Varnish (on Sandstone)
Rock Varnish (composed of Manganese oxides, Iron oxides, and Clay minerals)
Sandstone (Ferruginous)
Arenite (variable SiO2 with Fe2O3 staining)
Chert with Quartz Veining
Silicon Dioxide (SiO2)
Sandstone (Greywacke/Siltstone variant)
Clastic Sedimentary Rock (Lithic Wacke)
Jasper (with Manganese or Iron inclusions)
Silicon Dioxide (SiO2)
Quartz (Milky/Common)
Quartz (Silicon Dioxide, SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
Chert / Flint Nodules in Limestone
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
Green Garden Quartz (Phantom Quartz)
Silicon Dioxide (SiO2) with Chlorite inclusions
Blue Aventurine
Quartzite with Dumortierite inclusions (SiO2)
Sodalite
Sodalite (Na4Al3Si3O12Cl)
Black Opal
Hydrated Silica (SiO2·nH2O)
Folded Schist / Gneiss (Metamorphic Rock)
Regional Metaphoric Folded Outcrop (predominantly Schist/Gneiss)
Petrified Wood
Silicified Wood (primarily SiO2 - Silicon Dioxide)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Tiger's Eye
Tiger's Eye (a variety of Quartz, SiO₂)
Blue Banded Agate (Dyed)
Silicon Dioxide (SiO2) - variety of Chalcedony
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Shale
Shale (composition varies: primarily clay minerals and quartz)
Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Pink Chalcedony (Agate/Jasper blend)
Silicon Dioxide (SiO₂)
Ferruginous Sandstone (Gozzan)
Iron-rich clastic sedimentary rock with Limonite/Goethite
Goldstone
N/A (Synthetic Glass with Copper Inclusions)
Banded Sandstone (Differential Weathering)
Clastic Sedimentary Rock (primarily SiO2)