Purple Jasper
Silica-rich Microcrystalline Quartz (SiO2)
Category
Browse mineral (variety of quartz) specimens identified by the Rock Identifier community.
Purple Jasper
Silica-rich Microcrystalline Quartz (SiO2)
Chlorite (Small Flakes/Sand)
Chlorite Group (Magnesium Iron Aluminum Silicate Hydroxide - (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)
Gold Ore in Quartz
Auriferous Quartz (Au + SiO2)
Botryoidal Goethite on Quartz
Goethite (α-Fe3+O(OH)) on Quartz (SiO2)
Chert (Flint)
Chert (predominantly SiO₂ - silicon dioxide)
Chert (Flint variety)
Chert (Microcrystalline or Cryptocrystalline Quartz), SiO2
Jasper
Silicon dioxide (SiO2)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper variety)
Microcrystalline quartz (SiO2)
Chert (Common Variety)
Cryptocrystalline Quartz (SiO2)
Chert (Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper variety)
Cryptocrystalline quartz (SiO2)
Chert (Chalky variety)
Microcrystalline Quartz (SiO2)
Chert (Pink variety)
Microcrystalline Quartz (SiO2)
Chert (Basanite variety)
Microcrystalline Quartz (SiO2)
Chert (Brown Variety)
Microcrystalline quartz (SiO2)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Chert (Novaculite Variety)
Microcrystalline Quartz (SiO2)
Chert (and Jasper variety)
Microcrystalline Quartz (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Chert (Flint)
Chert (SiO2)
Granite
Granite (felsic intrusive igneous rock)
Sandstone
Arenite (composed primarily of SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with goethite or limonite inclusions
Quartzite
Quartzite (SiO2)
Amethyst (Raw Cluster)
Silicon Dioxide with iron impurities (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
White Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Red Jasper (beads)
Silicon Dioxide (SiO2) with iron inclusions
Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide staining/cementing)
Pyrite
Pyrite (FeS₂)
Chert (often called Flint in dark varieties)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (Light Variety)
Sedimentary cryptocrystalline quartz (SiO2)
Chert (and Flint variant)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Schist
Schist (various mineralogical compositions including mica, chlorite, talc, etc.)
Conglomerate (River Rock)
Clastic sedimentary rock (primarily SiO2)
Chert / Flint
Silicon Dioxide (SiO2)