Calcite
Calcium Carbonate (CaCO3)
mineral
Category
Sedimentary Or Mineral
Browse sedimentary or mineral specimens identified by the Rock Identifier community.
Learn about Sedimentary Or Mineral in the encyclopedia
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Limonite
FeO(OH)·nH2O
mineral
Conglomerate
Lithified, poorly sorted gravel; composition is uncertain from the image
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Sedimentary Clastic Rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Sedimentary quartz arenite
sedimentary
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Cone-in-cone structure (Limestone)
Cone-in-cone structure (Secondary Sedimentary Structure)
sedimentary
Clear Quartz
SiO2 (Silicon Dioxide)
gemstone
Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
mineral
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Limonite
FeO(OH)•nH2O
mineral
Limonite
FeO(OH)·nH2O
mineral
Limonite
FeO(OH)•nH2O
mineral
Pebble (likely a type of sandstone or quartzite pebble)
Clastic Sediment (specifically, a rudite-sized clast). If the pebble is composed of a specific rock type, its scientific name would be that rock type (e.g., 'Quartzite pebble', 'Granite pebble', 'Chert pebble'). Given its appearance, it is likely a metamorphic quartzite pebble or a hard sandstone pebble.
Sedimentary rock
Banded gneiss
Gneiss, chiefly quartz–feldspar–mica
metamorphic
Quartz-veined Sandstone Pebble
Quartzose Sandstone with Quartz Veinlets
sedimentary
Sandstone
Clastic sedimentary rock (Quartz arenite)
sedimentary
Sandstone
Sedimentary Clastic Rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone Concretion
Sedimentary Concretion (Quartz sand bound by mineral cement)
sedimentary
Fossilized Ammonite Fragment
Ammonoidea
fossil
Gneiss
Gneiss; a foliated metamorphic rock commonly composed of quartz, feldspar, and mica
metamorphic
Sandstone
Clastic sedimentary rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Tumbled milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Sandstone ( преимущественно SiO2 )
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Hematite
Iron(III) oxide (Fe2O3)
mineral
Limonite
FeO(OH)•nH2O
mineral
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Small weathered mineral/rock fragment
Indeterminate; possibly quartz-bearing feldspathic rock or calcite-rich specimen
mineral
Limonite
FeO(OH)·nH2O
mineral
Hematite
Hematite (Fe2O3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral