Rock Identifier

Category

Sedimentary Or Mineral

Browse sedimentary or mineral specimens identified by the Rock Identifier community.

Learn about Sedimentary Or Mineral in the encyclopedia

Coal

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Glauconite

Breccia

Hutcheonite

Halite

Ironstone

Sperrylite

Baddeleyite

Anatase

Brookite

Sandstone (Quartzose) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (primarily SiO2)

Limestone (Travertine/Tufa variant) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (Travertine/Tufa variant)

Calcium Carbonate (CaCO3)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Sandstone (likely Arkose) (Arenite (composed mainly of SiO2 with Feldspar)) — sedimentary

Sandstone (likely Arkose)

Arenite (composed mainly of SiO2 with Feldspar)

Sandstone (Quartz-rich) (Arenite (SiO2 based)) — sedimentary

Sandstone (Quartz-rich)

Arenite (SiO2 based)

Epidote (Unakite component) / Green Quartzite (Ca2(Al,Fe)3(SiO4)3(OH)) — metamorphic

Epidote (Unakite component) / Green Quartzite

Ca2(Al,Fe)3(SiO4)3(OH)

Quartz Druzy Geode Fragment (Silicon Dioxide (SiO2)) — mineral

Quartz Druzy Geode Fragment

Silicon Dioxide (SiO2)

Amethyst (SiO2 (Silicon Dioxide with Iron impurities)) — mineral

Amethyst

SiO2 (Silicon Dioxide with Iron impurities)

Chalcedony (specifically Agate or Carnelian variety) (Cryptocrystalline Silica (SiO2)) — mineral

Chalcedony (specifically Agate or Carnelian variety)

Cryptocrystalline Silica (SiO2)

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Chert (Jasper variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper variety)

Microcrystalline Quartz (SiO2)

Sandstone (Ferruginous) (Arenite with Iron Oxide cement) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron Oxide cement

Coal (Anthracite / Bituminous) (Organic Sedimentary Rock (Carbon-based)) — sedimentary

Coal (Anthracite / Bituminous)

Organic Sedimentary Rock (Carbon-based)

Limestone with Calcareous Accretion (Sedimentary Carbonate Rock (CaCO3)) — sedimentary

Limestone with Calcareous Accretion

Sedimentary Carbonate Rock (CaCO3)

Sandstone (Arenite (SiO2 dominated sandstone)) — sedimentary

Sandstone

Arenite (SiO2 dominated sandstone)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Jasper (specifically Red Jasper) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Jasper (specifically Red Jasper)

Silicon Dioxide (SiO2) with iron oxide inclusions

Poppy Jasper (Silicon Dioxide (SiO2) with Hematite and Iron Oxide inclusions) — sedimentary

Poppy Jasper

Silicon Dioxide (SiO2) with Hematite and Iron Oxide inclusions

Septarian Nodule (Dragon Stone) (Septarian concretion (composition: CaCO3 - Calcite, Aragonite, and Siderite/Limestone)) — sedimentary

Septarian Nodule (Dragon Stone)

Septarian concretion (composition: CaCO3 - Calcite, Aragonite, and Siderite/Limestone)

Dendritic Jasper (Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions) — sedimentary

Dendritic Jasper

Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions

Jasper (Jasper (Cryptocrystalline variety of Quartz, SiO2)) — sedimentary

Jasper

Jasper (Cryptocrystalline variety of Quartz, SiO2)

Ocean Jasper (Orbicular Jasper (Silicon Dioxide with impurities like Hematite and Chlorite, SiO2)) — sedimentary

Ocean Jasper

Orbicular Jasper (Silicon Dioxide with impurities like Hematite and Chlorite, SiO2)

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

Sandstone Pebbles (Arenite) — sedimentary

Sandstone Pebbles

Arenite

River Rock (Mossy) (Stream-rounded Clast (likely Siltstone or Sandstone with bryophytes)) — sedimentary

River Rock (Mossy)

Stream-rounded Clast (likely Siltstone or Sandstone with bryophytes)

Sandstone (with potential Quartzite characteristics) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (with potential Quartzite characteristics)

Clastic sedimentary rock (primarily SiO2)

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Green Calcite (Calcite (CaCO3)) — mineral

Green Calcite

Calcite (CaCO3)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Quartz (Smoky/Grey variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Smoky/Grey variety)

Silicon Dioxide (SiO2)

Druzy Quartz on Sandstone (Silicon Dioxide (SiO2) with Quartz crystals) — sedimentary

Druzy Quartz on Sandstone

Silicon Dioxide (SiO2) with Quartz crystals

Sandstone (River Cobble) (Clastic Sedimentary Rock (primarily Quartz with Feldspar)) — sedimentary

Sandstone (River Cobble)

Clastic Sedimentary Rock (primarily Quartz with Feldspar)

Quartz Druze (Silicon Dioxide (SiO2)) — mineral

Quartz Druze

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Pyrite in Limestone (Iron Sulfide (FeS2) in Calcium Carbonate (CaCO3)) — mineral

Pyrite in Limestone

Iron Sulfide (FeS2) in Calcium Carbonate (CaCO3)

Red Quartz (Druzy) (Silicon Dioxide (SiO2) with Hematite inclusions) — mineral

Red Quartz (Druzy)

Silicon Dioxide (SiO2) with Hematite inclusions

Milky Quartz / Rose Quartz fragment (Silicon Dioxide (SiO2)) — mineral

Milky Quartz / Rose Quartz fragment

Silicon Dioxide (SiO2)

Milky Quartz with Iron Inclusions (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz with Iron Inclusions

Quartz (Silicon Dioxide, SiO2)

Ferruginous Quartz (Quartz with Iron Oxide inclusions (SiO2 + Fe2O3)) — mineral

Ferruginous Quartz

Quartz with Iron Oxide inclusions (SiO2 + Fe2O3)

Milky Quartz in Matrix (Silicon Dioxide (SiO2)) — mineral

Milky Quartz in Matrix

Silicon Dioxide (SiO2)

Quartz Druzy (Geode Fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz Druzy (Geode Fragment)

Silicon Dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)