Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Category
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Jasper (likely Brecciated or Multi-colored)
Jasper (SiO2)
Fancy Jasper (Ocean Jasper or River Jasper variant)
Silicon Dioxide with inclusions (SiO2)
Sandstone Pebble
Arenite (primarily SiO2)
Red Jasper (Brecciated Jasper)
SiO2 (Silicon Dioxide) with Ferric Iron inclusions
Tree Agate
Silicon Dioxide (SiO2) - Dendritic Agate/Chalcedony
Sparkling Druzy Quartz on Matrix
Silicon Dioxide (SiO2) with iron oxide inclusions
Biotite Schist with Garnet
Garnet-Biotite Schist
Jasper with Agate Inclusions
Jasper (Silicon Dioxide, SiO2) with Chalcedony/Agate
Milky Quartz Geode or Druzy Quartz
Silicon Dioxide (SiO2)
Granitic Gneiss
Gneiss (containing Potassium Feldspar and Quartz)
White Quartz Pebble
Silicon Dioxide (SiO2)
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
Red Jasper
Silicon Dioxide with Iron Oxide (SiO2)
Quartzite with inclusions
Quartzite (primarily SiO2)
Sandstone (Pebble)
Clastic sedimentary rock (SiO2 primary)
Garnet-Mica Schist
Garnetiferous Porphyroblastic Schist
Sandstone (likely Quartzose)
Arenite (primarily SiO2)
Sandstone
Arenite
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 predominantly)
Ferruginous Sandstone (Gozzan/Ironstone)
Arenite with Limonite/Goethite cement (FeO(OH)·nH2O)
Sandstone (Quartz-rich)
Sandstone (SiO2 dominated)
Sandstone
Arenite (SiO2 based)
Petrified Wood
Silicified wood (Quartz/Chalcedony - SiO2)
Red Sandstone
Arenite (primarily Quartz with Iron Oxide)
Unidentifiable Specimen
Undetermined
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone
Arenite (Siliclastic sedimentary rock, primarily SiO2)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone
Arenite (primarily SiO2)
Sandstone (Flagstone)
Arenite (composed primarily of SiO2)
Red Sandstone
Arenite (Ferruginous Sandstone)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (SiO2 with assorted lithic fragments)
Basalt with Quartz/Plagioclase Inclusions
Mafic volcanic rock (Basaltic)
Red Sandstone (Hematitic)
Clastic sedimentary rock (SiO2 with Fe2O3 inclusions)
Jasper
Silicon dioxide / Chalcedony (SiO2)
Sandstone (Red Arkose)
Sandstone (Arkose variant, primarily SiO2 with KAlSi3O8)
Sandstone
Arenite (primarily SiO2 with various cementing agents)
Vesicular Basalt with Amygdules
Amygdaloidal Basalt
Laterite
Laterite (Ferricrete)