Chert / Flint Nodules in Sandstone
Microcrystalline Quartz (SiO2) within Clastic Sedimentary Rock
Category
Browse mineral within sedimentary rock specimens identified by the Rock Identifier community.
Chert / Flint Nodules in Sandstone
Microcrystalline Quartz (SiO2) within Clastic Sedimentary Rock
Quartz Geode in Chert/Limestone Matrix
Silicon Dioxide (SiO2) within Sedimentary Host Rock
Chert (often called Flint or Jasper)
Chert (Microcrystalline or Cryptocrystalline Silica, SiO2)
Schist (Micaceous Schist)
Schist (containing mainly Muscovite and Quartz)
Ferruginous Sandstone (Gozzan)
Iron-rich clastic sedimentary rock with Limonite/Goethite
Granite Gneiss
Gneiss (High-grade regional metamorphic rock)
Chert / Flint
Chert (Cryptocrystalline Silica, SiO2)
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminum phosphate)
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with iron and other impurities
Chert (often called Flint in various colors)
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (Microcrystalline Quartz, SiO2)
Chert (Common Opal/Jasper variety)
Microcrystalline Quartz (SiO2)
Chert (specifically Tan/Gray Chert)
Microcrystalline quartz (SiO2)
Sandstone Concretion
Clastic sedimentary rock (primarily Silica, SiO2, or Calcium Carbonate, CaCO3)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Quartz Geode in Sedimentary Matrix
Silicon Dioxide (SiO2) within a limestone/dolostone host
Conglomerate
Clastic sedimentary rock (Psephite)
Chert (Flint)
Chert (SiO2)
Glauconitic Sandstone (Greensand)
Glauconitic Sandstone ((K, Na)(Fe3+, Al, Mg)2(Si, Al)4O10(OH)2)
Green Aventurine (Green Quartzite)
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
Basalt with Iron Oxidation (Lattice/Veined)
Mafic Volcanic Rock (principally Plagioclase and Pyroxene)
Dalmatian Stone
Dalmatian Stone (a peralkaline igneous rock consisting of Feldspar, Quartz, and Arfvedsonite)
Gneiss (Granitic Gneiss)
Gneiss (from German Gneis, related to 'spark')
Amethyst
SiO2 (Silicon Dioxide with iron impurities)
Amethyst
Amethyst (SiO2 with Iron impurities)
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
Note: Item is not a geological specimen
Homo sapiens (Dermal Appendage: Pilus)
Quartz Vein in Host Rock (Gossanous Matrtix)
Silicon Dioxide (SiO2) with iron oxides (Limonite/Hematite)
Mica Schist with Pyrite
Muscovite/Biotite Schist with Iron Sulfide (FeS2)
Desert Rose (Baryte or Selenite variant)
Barium Sulfate (BaSO4) or Gypsum (CaSO4·2H2O) with Sand inclusions
Mookaite Jasper
Silicified Radiolarite (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Shale (Beach-worn)
Laminated Pelite (primarily clay minerals and quartz)
Chert / Flint
Microcrystalline Quartz (SiO2)
Wonderstone (Sandstone)
Liesegang Banded Sandstone (SiO2 dominated)
Chert Concretion (with typical hematite/limonite staining)
Sedimentary Concretion (SiO2 with FeO(OH)⋅nH2O)
Painted River Rock
Anthropogenic-modified Siliciclastic Sedimentary Rock
Chert (specifically Flint or Gray Chalcedony)
Microcrystalline Quartz (SiO2)
Chert (Iron-Stained)
Microcrystalline Silica (SiO2)
Flower Jasper
Agatized Fossil Coral / Chalcedony (SiO2)
Carnelian (Red Chalcedony)
Silicon Dioxide (SiO2)
Amygdaloidal Basalt
Amygdaloidal Basalt containing Zeolite and Calcite inclusions