Pink Quartzite
Quartzite (SiO2 with iron oxide inclusions)
Category
Browse sedimentary (microcrystalline quartz) specimens identified by the Rock Identifier community.
Pink Quartzite
Quartzite (SiO2 with iron oxide inclusions)
Jasper (Zebra Jasper)
Silicon Dioxide (SiO2) with impurities
Carnelian
Carnelian Chalcedony (SiO2 with Hematite impurities)
Chert (Pebble)
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Chert (and Flint variant)
Chert (SiO2)
Glauconitic Sandstone
Glauconitic Sandstone (contains (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)
Snakeskin Jasper
Silicon Dioxide (SiO2) with iron oxide and calcium carbonate inclusions
Sandstone Concretion
Ferruginous Sandstone Concretion (SiO2 + FeO(OH))
Crinoid Fossil in Chert
Siliceous limestone with Crinoidea fossil (SiO2)
Red Jasper (Chert)
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper Chert Nodules
Silicon Dioxide (SiO2) with Hematite impurities
Red Jasper (River Siltstone)
Silicon Dioxide (SiO2) with iron oxide inclusions
Chert (Nodule)
Cryptocrystalline Quartz (SiO2)
Chert Arrowhead
Cryptocrystalline Quartz (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Leopard Skin Jasper
Silicon Dioxide (SiO2) with impurities
Puddingstone (Jasper Conglomerate)
Conglomerate (specific type: Jasper Conglomerate or Hertfordshire Puddingstone)
Conglomerate
Conglomerate (SiO2 dominant in clasts)
Jasper River Pebble
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Green Chalcedony (likely Green Agate or Chrysoprase)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Red Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Agate
Silicon Dioxide / Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Chert (Microcrystalline or cryptocrystalline Quartz, SiO2)
Chert (specifically White Chert or Novaculite)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Ocean Jasper
Orbicular Jasper/Microcrystalline Quartz (SiO2)
Chert (Arrowhead Preform)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
Geode (Unopened)
Silicon Dioxide (SiO2) in sedimentary vugs
Chert (Chalcedony-rich sedimentary rock)
Cryptocrystalline Quartz (SiO2)
Chert Nodule (with Geode cavity)
Cryptocrystalline Quartz (SiO2)
Chert (Yellow Jasper)
Cryptocrystalline Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2) with impurities
Chert (Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Jasper (Yellow/Brown variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (specifically Green Chert/Jasper)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Quartz Cobble (with Iron Oxide Staining)
Microcrystalline to Macro crystalline Quartz (SiO2)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Chert
Chert (Silicon Dioxide, SiO2)