Banded Agate (with small Geode cavity)
Silicon Dioxide (SiO2) - Chalcedony variety
Category
Browse mineral within a sedimentary rock specimens identified by the Rock Identifier community.
Banded Agate (with small Geode cavity)
Silicon Dioxide (SiO2) - Chalcedony variety
Marble
Recrystallized Calcite Rock (CaCO3)
Greenstone
Metamorphosed Mafic Igneous Rock
Conglomerate (or Breccia)
Clastic Sedimentary Rock
River Pebble (Siltstone/Mudstone)
Clastic sedimentary rock
Dalmation Jasper (Dalmation Stone)
Perthitic feldspar-quartz-amphibole rock
Gneiss
Gneiss (Metamorphic high-grade)
Quartz (Common Milky Quartz)
Silicon Dioxide (SiO2)
Green Aventurine
Silicon Dioxide (Quartz variety) with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
Gneiss
Gneiss (High-grade metamorphic rock)
Basalt
Basalt
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Sandstone Pebble with Iron Staining
Clastic Sedimentary Rock (primarily Quartz with Fe2O3 oxides)
Ironstone Concretion (Moqui Marble)
Ironstone concretion (Fe2O3 with a sandstone core)
Banded Agate
Sedimentary Cryptocrystalline Quartz (SiO2)
Dalmatian Stone (often called Dalmatian Jasper)
Peralkaline Quartz-Feldspar Rock with Arfvedsonite (formerly believed to be Jasper)
Tufa (Limestone)
Calcareous Tufa (CaCO3)
Sandstone (with Iron Staining)
Clastic sedimentary rock (High Silica / Iron Oxide)
Shale
Fissile Clay-dominant Mudrock (SiO2, Al2O3, K2O, Na2O, CaO, MgO)
Red Sandstone
Arenite (Ferruginous Sandstone)
Sandstone
Arenite
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2 with minor Fe2O3)
Dendrite (Manganese Oxide Dendrites)
Psilomelane or Pyrolusite on Matrix (typically MnO2)
Jasper
Jasper (Cryptocrystalline Quartz; SiO2)
Ferruginous Sandstone
Sandstone with Iron Oxide (Limonite/Goethite)
Sandstone
Arenite (primarily SiO2)
Jasper
Silicon Dioxide (SiO2) with impurities
Dragon Stone
Ohko Stone (Argillaceous sedimentary rock)
Granite
Granite (a felsic intrusive igneous rock)
Greywacke (River Slikenside)
Greywacke (Lithic Sandstone)
Chert (with Limonite staining)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Green Aventurine
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)3Si3O10(OH)2)
Chert (variously known as Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Chert (specifically Flint)
Microcrystalline Quartz (SiO2)
Fossil Bivalve Shell
Class Bivalvia (e.g., Veneriidae family)
Breccia
Breccia
Fossil Shell (Bivalve)
Class Bivalvia (Likely a member of the Ostreidae or Gryphaeidae family), CaCO3
Quartz (Rock Crystal) with minor impurities
Quartz (SiO2)