Quartzite with Sandstone/Iron staining
Metamorphic Quartzite (SiO2)
metamorphic
Category
Mineral, Often Found As Detrital Grains In Sedimentary Rocks
Browse mineral, often found as detrital grains in sedimentary rocks specimens identified by the Rock Identifier community.
Ironstone Concretion (Pot Stone)
Siderite or Limonite Concretion (FeCO3 or FeO(OH)·nH2O)
sedimentary
Sandstone (likely Greywacke or Lithic Sandstone)
Arenite / Wacke
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Quartz (Pebble)
Quartz (SiO₂)
Mineral
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Mica Schist
Foliated Metamorphic Rock (rich in Muscovite or Biotite)
metamorphic
Sandstone (River Cobble)
Clastic Sedimentary Rock (primarily Quartz with Feldspar)
sedimentary
Shale or Slaty Mudstone
Argillaceous sedimentary rock
sedimentary
Sandstone (Graywacke type)
Clastic Sedimentary Rock (Lithic Sandstone)
sedimentary
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
River Stone (Granitic Gneiss)
Foliated Granitic Gneiss
metamorphic
Phyllite
Phyllite
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Sandstone (River Cobble)
Clastic sedimentary rock (primarily SiO2 with various lithic fragments)
sedimentary
Conglomerate
Conglomerate (Sedimentary rock containing rounded clasts)
sedimentary
Red Sandstone
Clastic Terrigenous Sedimentary Rock (composed mostly of SiO2 with Fe2O3)
sedimentary
River Cobble (likely Sandstone or Siltstone type)
Sandstone or Siltstone (common rock types that form river cobbles)
Sedimentary Rock (specifically a clastic sedimentary rock formed into a cobble)
Sandstone with Iron Oxide
Arenite (SiO2 with Fe2O3 staining)
sedimentary
Sandstone (Ferruginous/Banded)
Clastic Terrigenous Sandstone (SiO2 with Fe2O3 cement)
sedimentary
Sandstone (likely Quartzose Sandstone with mineral staining)
Arenite (composed mainly of SiO2)
sedimentary
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Ironstone Concretion (Siderite Nodules)
Siderite (FeCO3) in Mudstone or Sandstone matrix
sedimentary
Carnelian
Carnelian (Microcrystalline Quartz, SiO2 with Fe2O3 impurities)
mineral
Quartz (Water-worn pebble)
Silicon Dioxide (SiO2)
mineral
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Greenschist (Greenstone River Pebble)
Greenschist (Chlorite Schist)
metamorphic
Sandstone (Red/Brown Variety)
Arenite (SiO2 with iron oxide impurities)
sedimentary
Ferruginous Conglomerate
Ferruginous Conglomerate (Clastic Sedimentary Rock)
sedimentary
Greenschist
Greenschist facies rock
Metamorphic
Sandstone (with banding/weathering)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone (with potential iron-oxide staining)
Arenite (primarily SiO2)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone or Limestone
Arenite or Calcareous Sedimentary Rock
Sedimentary
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Carnelian Agate
Silicon Dioxide (SiO2) - Carnelian variety of Chalcedony
mineral