Rough Quartz (Grey-Green)
Silicon Dioxide (SiO2)
Category
Browse man made glass specimens identified by the Rock Identifier community.
Rough Quartz (Grey-Green)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Pyrite
Iron Sulfide (FeS2)
Rose Quartz
Silicon Dioxide (SiO2) with trace Titanium, Iron, or Manganese
Chert (Jasper-bearing)
Silicon dioxide (SiO2) - Microcrystalline Quartz
Quartz (Small fragments)
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite)
Chert (specifically Red Chert or Jasper)
Microcrystalline Quartz (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Quartzite with Dendritic Manganese Oxide Inclusions
Metamorphic Quartzite (SiO2 with Mn-oxides)
Rose Quartz
Silicon Dioxide (SiO2)
Diamond
Cubic Carbon (C)
Olivine (often within Peridotite)
Magnesium iron silicate, (Mg,Fe)2SiO4
Chert (Flint Nodules)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Rose Quartz
Silicon Dioxide with trace elements (SiO2 + Ti, Fe, or Mn)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Ferruginous Quartz
Quartz (Silicon Dioxide, SiO2) with iron oxide inclusions
Sandstone
Arenite (lithic or quartz sandstone)
Quartz Vein in Hematitic Siltstone
Hydrothermal Quartz (SiO2) in Ferriferous Matrix
Sandstone (Quartzite-leaning)
Arenite (primarily SiO2)
Sandstone
Sandstone (principally SiO2/Silicon Dioxide)
Quartzite Cobble
Quartzite (SiO2)
Quartz Geode
Crystalline Silicon Dioxide (SiO2)
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
Sandstone Pebble
Arenite (SiO2 based)
Pink Feldspar with Quartz
Potassium Feldspar (Orthoclase) with SiO2
Sandstone (Ferruginous)
Arenite with Iron-Oxide cement
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone (Ferruginous)
Arenite (Fe2O3 enriched)
Quartzite
Quartzite (SiO2 composition)
Sandstone
Arenite (SiO2 based clastic rock)
Quartzite (Gold-Yellow variety)
Quartzite (Silicon Dioxide, SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite
Quartzite (Milky Quartz pebble)
Silicon Dioxide (SiO2)
Celestite (Celectine)
Strontium sulfate (SrSO4)
Sandstone with Quarzite clasts
Arenite (SiO2 based)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Sandstone (likely Quartzose Sandstone pebble)
Arenite (primarily SiO2)
Chert (Tan/Buff Chert)
Microcrystalline Quartz (SiO2)