Sandstone
Arenite (primarily SiO2)
Category
Browse mineral, often found as detrital grains in sedimentary rocks specimens identified by the Rock Identifier community.
Sandstone
Arenite (primarily SiO2)
Conglomerate (Puddingstone)
Conglomerate (specifically, clastic sedimentary rock)
Chondrite Meteorite
Stony Meteorite (L, H, or LL Chondrite)
Chalcedony (Common Opal variant or Agate)
Silicon Dioxide (SiO2)
Puddingstone
Conglomerate
Sand Grain (Silica/Quartz Grain)
Silicon Dioxide (SiO2)
Amygdaloidal Basalt
Amygdaloidal Basalt with Secondary Infilling (e.g., Agate, Quartz, or Zeolite)
Chalcedony (Botryoidal Agate)
Silicon Dioxide (SiO2)
Carnelian
Carnelian (SiO2)
Jasper
Silicon Dioxide (SiO2) - a variety of Chalcedony (Cryptocrystalline Quartz)
Gneiss (Metamorphic Cobble)
Gneiss (High-grade Regional Metamorphic Rock)
Sandstone
Arenite (general term for sandstone)
Conglomerate
Conglomerate (clastic sedimentary rock)
Quartzite
Quartzite (primarily SiO2)
Quartz Geode (Cracked)
Silicon Dioxide (SiO2)
Quartzite River Rock (with Limonite staining)
Quartzite (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Hematite
Iron(III) oxide (Fe2O3)
Bauxite
Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))
Jasper
Jasper (Silica/Silicon Dioxide, SiO2)
Sandstone (Yellow/Tan Sandstone)
Arenite (primarily Quartz, SiO2)
Fluorite
Calcium Fluoride (CaF2)
Fluorite and Rose Quartz
Fluorite (CaF2), Rose Quartz (SiO2)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Fluorite
Calcium Fluoride (CaF2)
Turquoise in Matrix
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Pyrite
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Quartzite
Quartzite (SiO2)
Pyrite
Iron Sulfide (FeS2)
Shale (with minor calcite veining)
Clastic sedimentary rock (primarily clay minerals and quartz)
Red Garnet
Garnet Group (e.g., Pyrope, Almandine, Spessartine, Grossular, Andradite, Uvarovite)
Glauconitic Sandstone (Greensand)
Glauconitic Sandstone ((K, Na)(Fe3+, Al, Mg)2(Si, Al)4O10(OH)2)
Pyrite
Iron Disulfide (FeS2)
Red Garnet
Almandine Garnet (Fe3Al2(SiO4)3)
Shale (Ferruginous)
Laminated Mudrock (Siliciclastic Sedimentary Rock)
Granite Gneiss
Gneiss (derived from granitic protolith)
Vesicular Basalt (or Porphyritic Scoria)
Vesicular Basalt
Conglomerate
Clastic sedimentary rock (Conglomerate)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Sandstone
Arenite
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)