Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
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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Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Clastic Sedimentary Rock
sedimentary
Jasper and Chalcedony Nodule
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Sandstone
Sandstone (clastic sedimentary rock)
sedimentary
Diamond
Diamond (pure Carbon, C)
mineral
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
mineral
Sandstone
Arenite
sedimentary
Sandstone
Sandstone (lithified quartz arenite, arkose, graywacke, etc. depending on composition)
Sedimentary Rock
Man-made Metal Pin (Non-geological)
Antimony-Lead Alloy or Zinc/Brass Base with Electroplating
Metal Alloy / Manufactured Artifact
Diamond
C (Native Carbon)
mineral
Sandstone
Arenite
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Inukshuk Rock Sculpture (composed of Granite, Slate, and Amethyst)
Silicon Dioxide (Amethyst portion, SiO2) with mixed silicate rock assemblage
mineral
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Sandstone (Glacial Cobble)
Arenite / Sedimentary Rock (primarily SiO2)
sedimentary
White Jade
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)
gemstone
Red Jasper or Ironstone concretion
SiO2 or Fe2O3
sedimentary or mineral
Sandstone
Arenite
sedimentary
Native Copper with Cuprite and Quartz
Copper (Cu), Cuprite (Cu2O), Quartz (SiO2)
mineral
Gold Nugget
Native Gold (Au)
mineral
Iridium sand or Osmium-Iridium nugget
Iridosmine / Osmiridium (Platinoid grouping)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Plume Agate or Moss Agate
Agate (SiO2)
mineral
Fossil Assortment and Geological Specimens
Various (including Ammonoidea)
fossil
Quartz (Milky or Citrine-tinted)
Silicon Dioxide (SiO2)
mineral
Granite
Granite (Plutonic Igneous Rock)
igneous
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Sedimentary rock composed mainly of sand-sized minerals or rock grains
sedimentary
Conglomerate / Breccia Matrix (Aggregated Rock)
Sedimentary Breccia / Conglomerate
sedimentary
Sandstone Concretion
Septarian Concretion (Nodule)
sedimentary
Chert (Nodule)
Silicon Dioxide (SiO2)
sedimentary
Agate in Matrix
Silicon Dioxide (SiO2) within host rock
mineral
Sandstone
Clastic Sedimentary Rock
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Granite Pegmatite with Tourmaline and Muscovite
Pegmatite (Feldspar: KAlSi3O8, Quartz: SiO2, Schorl: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH))
igneous
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Shark Tooth Fossil
Vertebrate fossilized tooth
fossil
Fossil Shell
Phylum Mollusca (Gastropod fossil)
fossil