Sandstone (Banded)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Category
Sedimentary Rock (Possibly Conglomerate Or Breccia With A Quartz Vein)
Browse sedimentary rock (possibly conglomerate or breccia with a quartz vein) specimens identified by the Rock Identifier community.
Chert / Flint Nodules in Limestone
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
sedimentary
Tiger's Iron
Pseudomorphic Quartz Aggregate (contains SiO2 with Fe2O3 and FeOOH)
metamorphic
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Chert (Nodule)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Sandstone (Quartzose Sandstone)
Arenite (SiO2 primarily)
sedimentary
Gold Nugget
Native Gold (Au)
mineral
Banded Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Druzy Quartz Geode (Vug)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Cloudy Quartz)
Silicon Dioxide (SiO2)
mineral
Gold Ore
Native Gold (Au)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Jasper
Silicon dioxide (SiO2)
sedimentary
Sandstone (Stream Pebble)
Arenite (primarily SiO2)
sedimentary
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Dalmatian Stone
Dalmatian Jasper (actually a Peralkaline Igneous Rock)
igneous
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (primarily Quartz, SiO2)
sedimentary
Ferruginous Sandstone
Clastic sedimentary rock (SiO2 with Fe2O3/FeO(OH) cement)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
Mineral
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Quartz (Milky or Smoky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Banded Chert (or Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (often composed of Quartz, SiO2)
sedimentary
Quartz Geode/Druzy Quartz
Quartz (SiO₂)
Mineral
Limonitic Sandstone with Inclusion
Limonitic Quartz Sandstone (primarily SiO2 with FeO(OH)·nH2O)
sedimentary
Chert / River Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Jasper and Yellow Chert (Tumbled)
Microcrystalline Quartz (SiO2)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz / Clear Quartz
Silicon Dioxide (SiO2)
mineral