Sandstone
Arenite
sedimentary
Category
Sedimentary Rock Or Mineral (Depending On Origin And Purity)
Browse sedimentary rock or mineral (depending on origin and purity) specimens identified by the Rock Identifier community.
Learn about Sedimentary Rock Or Mineral (Depending On Origin And Purity) in the encyclopedia
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Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Byproduct)
mineraloid
Limestone (with Calcite Veining)
Calcium Carbonate (CaCO3)
sedimentary
Sandstone and Mixed Rock Assemblage
Clastic Sedimentary Rock / Quartz Arenite
sedimentary
Banded gneiss
Orthogneiss or paragneiss, chiefly quartz–feldspar–mica
metamorphic
Sandstone
Arenite
sedimentary
Granite
Intrusive igneous rock
igneous
Banded Sedimentary Rock
Sedimentary rock with Liesegang banding
sedimentary
Quartz-rich rock fragment, possibly granite or quartzite
Primarily quartz (SiO₂), with possible feldspar and iron-oxide staining
igneous or metamorphic
Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary
Quartzite
Quartzite (SiO2 silicon dioxide)
metamorphic
Small quartz-rich pebble
Quartz (SiO₂), possibly quartzite or weathered granite fragment
mineral
Gravel and Sand Aggregate
Unconsolidated Clastic Sediment
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Diamond
Diamond (Pure Carbon, C)
mineral
Sandstone Concretion
Sedimentary Clastic Rock (Silicate-rich)
sedimentary
Sandstone
Arenite (SiO2-rich)
sedimentary
Black Onyx
Chalcedony (Silicon Dioxide, SiO2)
mineral
Generic Pebble / Small Rock Fragment
Lithic fragment / Weathered rock particle
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Sedimentary Outcrop (Sandstone/Shale)
Sedimentary bedrock formation (variable composition)
sedimentary
Quartz Vein in Hematitic Siltstone
Hydrothermal Quartz (SiO2) in Ferriferous Matrix
metamorphic
Sandstone
Clastic Sedimentary Rock
sedimentary
Fossilized Bone Fragment
Vertebrate Fossil
fossil
Limestone
Sedimentary Rock (Primarily Calcium Carbonate, CaCO3)
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone pebble
Sandstone (siliciclastic sedimentary rock)
sedimentary
Banded Gneiss (River Cobble)
Gneiss (a high-grade metamorphic rock)
metamorphic
Fluorite in Matrix
Calcium Fluoride (CaF2) with Quartz/Calcite matrix
mineral
Sandstone
Sedimentary Rock (Quartz/Feldspar grains cemented together)
sedimentary
Small dark mineral/rock fragment
Indeterminate; possibly magnetite-bearing basalt or iron-rich slag
mineral
Gastropod Fossil
Class Gastropoda (fossilized)
fossil
Sandstone
Sedimentary Clastic Rock (Quartz Arenite)
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Opal
Hydrated amorphous silica, SiO2·nH2O
gemstone
Sandstone
Clastic Sedimentary Rock
sedimentary
Mixed Rock and Mineral Collection
Various geological specimens
igneous, sedimentary, and metamorphic
Jasper and Quartz Breccia
Silicified Breccia / Microcrystalline Quartz
sedimentary
Fossilized Shark Tooth
Chondrichthyes (Class)
fossil
Fluorite Geode
Calcium Fluoride (CaF2)
mineral
Weathered quartz-rich pebble
Quartzite or silicified sandstone; predominantly microcrystalline quartz (SiO₂)
metamorphic