Smoky Quartz
Silicon Dioxide (SiO2)
Category
Browse synthetic (man made glass) specimens identified by the Rock Identifier community.
Smoky Quartz
Silicon Dioxide (SiO2)
Sandstone (Quartzose)
Arenite (composed primarily of SiO2)
Chert / Jasper
Silicon Dioxide (SiO₂)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Dyed Agate
Silicon Dioxide (SiO2) - variety Chalcedony
Slag (Industrial Glass/Metal)
Ferrous slag or Glassy silicate byproduct
Sandstone (Quartzose)
Arenite (primarily SiO2)
Quartzite
Quartzite (Metamorphosed Sandstone)
Chert
Microcrystalline quartz (SiO2)
Flint
Silicon dioxide (Microcrystalline Quartz / Chert)
Chert
Microcrystalline Quartz (SiO2)
Red Slag Glass (Cullet)
Amorphous Silicon Dioxide (SiO2) with metallic dopants
Jasper / Chert (Red)
Cryptocrystalline quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert (Chert / Flint Variety)
Microcrystalline / Cryptocrystalline Quartz (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2) with trace aluminum and irradiation
Diamond (in jewelry setting)
Diamond (C - Carbon)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Carved Stone Turtle
Carved Soapstone and Quartz
Quartzite
Metamorphic Quartz Arenite
Ruby
Corundum (Al2O3 with Chromium traces)
Tumbled chalcedony (likely moss or dendritic agate)
Microcrystalline quartz, SiO₂, with iron-oxide inclusions
Cubic Zirconia (Set in Jewelry)
Zirconium Dioxide (ZrO2)
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
Ruby
Corundum (Al2O3)
Chert / Flint
Microcrystalline Quartz (SiO2)
Chert (Chalcedony/Agate variety)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartzite
Metamorphic Quartzite (SiO2)
Black Chert River Stone
Cryptocrystalline Quartz (SiO2)
Flint / Chert Pebble
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline silica (SiO2)
Chert (Flint)
Chert (Silicon Dioxide, SiO2)
Chert (and Agate/Chalcedony)
Microcrystalline Quartz (SiO2)
Diamond (Faceted Gemstone)
Native Carbon (C)
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
Bismuth Crystal
Bismuth (element symbol Bi, atomic number 83)
Lapis Lazuli
Lapis lazuli (Rock composed primarily of Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)
Sandstone (Quartzose)
Sandstone (SiO2 dominated)
Red Agate (Carnelian)
Silicon Dioxide (SiO2)
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)