Crushed Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Category
Mineral On Sedimentary Rock
Browse mineral on sedimentary rock specimens identified by the Rock Identifier community.
Pyrite
Iron Sulfide (FeS2)
mineral
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
mineral
Quartz
Quartz (SiO₂)
Mineral
River Pebble (likely Quartzite or Chert)
Silicon Dioxide (SiO2) crystal conglomerate
sedimentary or metamorphic
Jasper
Jasper (Silicon Dioxide, SiO2 plus iron oxide impurities)
sedimentary
Chert Nodules in Limestone
Microcrystalline Quartz (SiO2) within Calcium Carbonate (CaCO3)
sedimentary
Mica Schist with Garnet
Garnetiferous Mica Schist
metamorphic
Quartz with Mica/Host Rock
Silicon Dioxide (SiO2) with Phyllosilicates
mineral
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Chert (Grey-Green Var.)
Silicon Dioxide (SiO2)
sedimentary
Granodiorite
Granodiorite (containing Quartz, Plagioclase Feldspar, Biotite, and Hornblende)
igneous
Slate
Foliated Metamorphic Rock
metamorphic
Fossiliferous Limestone with Crinoid stems
Calcite-rich Biogenic Sedimentary Rock (CaCO3)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Aquamarine and clear quartz
Aquamarine (Be3Al2Si6O18), Quartz (SiO2)
Mineral
Slate
Slate (a fine-grained, foliated metamorphic rock). Mineral composition: Primarily composed of mica minerals (muscovite, chlorite, sericite) and quartz, with minor amounts of hematite, pyrite, and other accessory minerals.
sedimentary
Quartz (Smoky/Granular variety)
Silicon Dioxide (SiO2)
mineral
Green Apophyllite and Stilbite on Quartz Cluster
Apophyllite-(K) (KCa4(Si8O20)(F,OH)·8H2O), Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O), Quartz (SiO2)
Mineral
Conglomerate
Conglomeratic Sandstone / Polymictic Conglomerate
sedimentary
Granite
Granite (Felsic Plutonic Rock)
igneous
Slickenside in Limestone
Tectonized Limestone / Calcite (CaCO3)
metamorphic (localized) or sedimentary
Crushed Stone (Gravel/Aggregates)
Crushed rock aggregate (varied composition including Granite, Limestone, and Quartz)
sedimentary and igneous (mixed)
Chert / Jasper
Silicon Dioxide (SiO2)
sedimentary
Ferruginous Quartz on Ironstone
Silicon Dioxide (SiO2) with Hematite (Fe2O3)
metamorphic
Green Chert
Microcrystalline Quartz (SiO2)
sedimentary
Glauconitic Sandstone
Glauconitic Sandstone with high Glauconite concentration ((K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2)
sedimentary
Painted Pet Rock (Quartzite/Sandstone base)
Silicon Dioxide (SiO2) with anthropomorphic acrylic embellishments
sedimentary
Brecciated stone pebble
Breccia
sedimentary
River Gravel (Quartzite and Chert pebbles)
Silicon Dioxide (SiO2)
sedimentary
River Rock (Greywacke/Siltstone)
Siltstone / Argillaceous Greywacke
sedimentary
Jasper (Iron-rich)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) impurities
sedimentary
Chert (Nodule)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Lapis Lazuli
Lapis Lazuli (a rock composed primarily of Lazurite)
Metamorphic rock
Chert (Yellow/Brown Jasper)
Silicon Dioxide (SiO2)
sedimentary
Sandstone
Quartz Arenite (a type of sandstone composed of more than 90% quartz)
Sedimentary Rock
Bivalve Fossil (Clam/Mollusk)
Class: Bivalvia (Order: Veneroida), Calcium Carbonate (CaCO3)
sedimentary
Phyllite
Phyllite (Foliated metamorphic rock)
metamorphic
Puddingstone
Conglomerate (specifically a type of jasper conglomerate or quartz conglomerate)
Sedimentary
Quartz with Iron Stains
Quartz (SiO2) with iron oxide/hydroxide staining
Mineral
Sandstone-based Concrete Fragment
Cementitious Composite with Sedimentary Aggregate
sedimentary (man-made/anthropogenic)