Jasper
Jasper (Silicon Dioxide, SiO2)
Category
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
Jasper
Jasper (Silicon Dioxide, SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Chert (Nodule)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Pyrite
Pyrite (Iron Disulfide), FeS2
Red Sandstone (Siltstone/Mudstone variety)
Ferruginous Sandstone (composed primarily of Quartz with Hematite cementation)
Chert (specifically Tan/Yellow Chert)
Chert (Microcrystalline or Cryptocrystalline Silica, SiO2)
Chalcedony (specifically Agate or Moonstone-like Quartz)
Silicon Dioxide (SiO2)
Granite
Granite (composed primarily of Quartz SiO2, Alkali Feldspar KAlSi3O8, and Plagioclase Feldspar)
Limonite Concretion
Goethite-rich Concretion (FeO(OH))
Gneiss
Gneiss
Chalcedony Geode
Chalcedony (SiO2) within a geode structure
Chert (Jasper-like)
SiO2 (Cryptocrystalline Quartz)
Chert (and Chalcedony/Agate mixture)
Microcrystalline Quartz (SiO2)
Chert (Chert / Flint nodule)
Silicon Dioxide (SiO2)
Jasper (Yellow/Brown variety)
Silicon Dioxide (SiO2) with iron oxide impurities
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Quartz (Milky/Gray variety)
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Jasper with Quartz Vein
Silicon Dioxide (SiO2) with impurities
Jasper with Quartz inclusions
Silicon Dioxide (SiO2) with impurities
Ironstone Concretion / Goethite-Hematite Nodule
Goethite/Hematite (α-FeO(OH) / Fe2O3)
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxide impurities
Chert (Chert Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Chert / Flint
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2)
Ocean Jasper
Orbicular Jasper (Silicon Dioxide with impurities like Hematite and Chlorite, SiO2)
Moqui Marble (Iron-Oxide Concretion)
Iron Oxide Concretion (Fe2O3)
Jasper
Silicon dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Carnelian (a variety of Chalcedony)
SiO2 (Silicon Dioxide) - Cryptocrystalline Quartz
Granitic Gneiss
Gneiss (High-grade Metamorphic Rock)
Honey Calcite
Calcium Carbonate (CaCO3)
Limonite with Iron Inclusions
Limonite (Hydrated Iron Oxide, FeO(OH)·nH2O)
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Ironstone (likely Limonite or Goethite nodule)
Hydrothermally altered Ferric Hydroxide (FeO(OH)·nH2O)
Chert / Flint
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (SiO2)
Hematite
Hematite (Fe2O3)
Ironstone Concretions (Ironstone)
Ferruginous Sandstone or Siltstone (Fe2O3)
Banded Calcite (Mexican Onyx)
Calcium Carbonate (CaCO3)