Mineral; Variety Of Quartz

Gold-bearing Quartz with Iron Oxides

Quartz (SiO2) with Limonite/Goethite (FeO(OH)) and Pyrite (FeS2)

Milky Quartz with Hematite inclusions

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Chert (varieties include Flint or Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Quartzite

Quartzite (primarily SiO2)

Sandstone (Pebble)

Sandstone (arenite, arkose, wacke depending on composition)

Jasper (Iron-rich Chert)

Silicon Dioxide (SiO2) with impurities of Hematite or Goethite

Conglomerate (River Rock)

Clastic sedimentary rock (primarily SiO2)

Gold Ore in Quartz

Auriferous Quartz (Au + SiO2)

Chert (varieties include Flint and Jasper)

Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)

Chert (Flint)

Chert (Cryptocrystalline Quartz, SiO2)

Chert (Jasper/Agate variety)

Microcrystalline Quartz (SiO2)

Satin Spar

Fibrous Gypsum (CaSO4·2H2O)

Pyrite

Iron Sulfide (FeS2)

Chert (Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Fluorite

Calcium Fluoride (CaF2)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Quartz Vein in Host Rock (Gneiss/Schist)

Silicon Dioxide (SiO2) within a metamorphic matrix

Red Jasper with Quartz

Silicon Dioxide (SiO2) with Hematite inclusions

Quartz on Schist

Silicon Dioxide (SiO2) on Foliated Metamorphic Rock

White Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Yellow Agate

Silicon Dioxide (SiO2)

Chert (often called Jasper in this color variety)

Microcrystalline Quartz (SiO2)

Green Aventurine

Quartzite (variety Aventurine) with Fuchsite inclusions (K(Al,Cr)2(AlSi3O10)(OH)2)

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (White/Light Tan)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Flint/Jasper variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Nodule)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Yellow Chert (River Stone/Pebble)

Chert (Cryptocrystalline Quartz, SiO2)

Chert (Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Schist (Micaceous Schist)

Schist (comprising Muscovite/Biotite mica, Quartz, and Feldspar)

Jasper

Jasper (Silicon Dioxide, SiO2)

Botryoidal Goethite on Quartz

Goethite (α-Fe3+O(OH)) on Quartz (SiO2)

Ocean Jasper

Silicon dioxide with impurities (SiO2 + impurities)

Chert (Yellow Jasper)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Milky Quartz

Quartz / Silicon Dioxide (SiO2)

Chert (Jasper/Chalcedony variety)

Silicon Dioxide (SiO2)

Ruby and Diamond in Gold Setting

Corundum (Al2O3) and Diamond (C)

Rough Emerald

Emerald (Beryl), Be3Al2(SiO3)6

Chert (Flint/Jasper variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)