Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Category
Browse man made byproduct (non geological) specimens identified by the Rock Identifier community.
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Granodiorite
Granodiorite (phaneritic intrusive igneous rock)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Chert (specifically Jasper or Flint)
Cryptocrystalline Quartz (SiO2)
Sandstone (Quartz-rich)
Arenite (SiO2 based)
Carnelian
Carnelian Agate (Silica: SiO2)
Moss Agate
Silicon Dioxide with inclusions (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2) / Rock Crystal
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Red Jasper
Jasper (SiO2 with Fe2O3 inclusions)
Quartz / Clear Quartz
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone (Yellow/Tan)
Clastic sedimentary rock (primarily SiO2 with iron oxide staining)
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Milky Quartz (or Vein Quartz)
Silicon Dioxide (SiO2)
Iron-stained Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
Ironstone Concretion (Limonite/Goethite)
Ferruginous Sandstone or Limonite (FeO(OH)·nH2O)
Quartz (Small fragments)
Silicon Dioxide (SiO2)
Oolitic Ironstone
Sedimentary Ooidal Ironstone (Limonite/Hematite mixture)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milk Quartz (Vein Quartz)
Quartz (Silicon Dioxide, SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Rose Quartz Beads
SiO2 (Silicon Dioxide with trace inclusions of Ti, Fe, or Mn)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartzite (Gold/Yellow)
Quartzite (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2) with impurities
Chert (Flint)
Silicon Dioxide (SiO2)
Quartz (Milky and Smoky variety)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
Sandstone (Ferruginous)
Ferruginous Sandstone (SiO2 with Fe2O3)
Dendritic Jasper (Bumblebee like Agate)
Silicon Dioxide with inclusions (SiO2)
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)