Iron-stained Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
Category
Browse man made glass specimens identified by the Rock Identifier community.
Iron-stained Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Sandstone (with potential fossil inclusions)
Clastic sedimentary rock (primarily SiO2)
Quartzite
Quartzite (SiO2)
Quartz / Clear Quartz
Silicon Dioxide (SiO2)
Limestone (containing Fossil Mold)
Sedimentary Calcium Carbonate (CaCO3)
Sandstone (likely Arkosic or Lithic Sandstone)
Clastic Sedimentary Rock (SiO2 with assorted minerals)
Quartzite
Quartzite (SiO2)
Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 based)
Chert (Flint)
Silicon Dioxide (SiO2)
Quartz (River Cobble)
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Iron-stained or Ferruginous Quartz)
Silicon Dioxide (SiO2)
Sandstone (Quartzose)
Arenite (composed mainly of SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (SiO2 based)
Quartzite
Quartzite (SiO2)
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
Orthoclase Feldspar
KAlSi3O8 (Potassium aluminum silicate)
Sandstone
Arenite (primarily SiO2)
Red Quartzite
Quartzite (primarily SiO2)
Sandstone (Ferruginous)
Arenite (with Iron Oxide cement)
Sandstone
Arenite
Sandstone with Algae Growth
Arenite with Chlorophyta/Lichen
Sandstone
Arenite (primarily SiO2)
Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (SiO2 based)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Sandstone
Clastic Sedimentary Rock (composed primarily of Quartz: SiO2)
Sandstone (Ferruginous)
Ferruginous Sandstone (SiO2 with Fe2O3)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Flint (within Limestone matrix)
Silicon dioxide (SiO2)
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 cement)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Red Sandstone
Arenite with Hematite (Fe2O3) cement
Quartzite
Metamorphosed Quartz Sandstone (primarily SiO2)
Quartzite
Quartzite (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)