Sandstone (Greywacke/Siltstone variant)
Arenite / Wacke (SiO2 with diverse mineral inclusions)
sedimentary
Category
Sedimentary (Processed Mineral Product)
Browse sedimentary (processed mineral product) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Processed Mineral Product) in the encyclopedia
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Diamond Drill Core (Greenschist and Quartzite)
Chlorite Schist / Meta-quartzite (Metamorphic Rock Core Sample)
metamorphic
Limonite (Iron Ore)
Limonite (mixed iron hydroxides, primarily FeO(OH)·nH2O)
mineral
Peridotite
Peridotite (primarily Olivine and Pyroxene)
igneous
Biotite Mica
K(Mg,Fe2+)3(Al,Fe3+)Si3O10(OH,F)2
Mineral
Red Sandstone
Arenite (primarily Quartz with Iron Oxide coating)
sedimentary
Sandstone with Quartz Vein
Arenite with Crystalline Silica (SiO2)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Fluorite
Calcium fluoride (CaF2)
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Ferruginous Sandstone (River Pebble)
Clastic Sedimentary Rock (Iron-rich)
sedimentary
Blue Lace Agate
Silicon Dioxide (SiO₂)
sedimentary
Bivalve Fossil in Sedimentary Matrix
Fossiliferous Mudstone (Class: Bivalvia)
sedimentary
Calcite on Matrix
Calcium Carbonate (CaCO3)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Sandstone Cobble
Clastic Sedimentary (Sandstone)
sedimentary
Shale
Lutaceous sedimentary rock
sedimentary
Shale
Fissile mudstone (rich in clay minerals and quartz)
sedimentary
Granite Cobble
Granitoid (typically containing Quartz SiO2, Feldspar KAlSi3O8, and Mica minerals)
igneous
Sandstone or Limestone
Arenite or Calcareous Sedimentary Rock
Sedimentary
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
mineral
Sandstone
Arenite (primary component SiO2)
sedimentary
Quartzite River Stone
Quartzite (primarily SiO2)
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary
Septarian Nodule (Dragon Stone)
Septarian Concretion (CaCO3 with Calcite, Aragonite, and Limestone/Bentonite)
sedimentary
Sandstone with Iron Staining
Clastic sedimentary rock (SiO2 with iron oxides)
sedimentary
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral, often found as detrital grains in sedimentary rocks
Sandstone
Quartz Sandstone (predominantly)
Sedimentary
Amethyst
Amethyst (Silicon Dioxide, SiO2 + Fe)
mineral
Sandstone/Quartzite
Sedimentary Rock (composed mainly of SiO2)
sedimentary
Sandstone
Arenite (SiO2 based with various mineral cements)
sedimentary
Sandstone
Arenite (SiO2 dominant)
sedimentary
Gneiss (foliated metamorphic rock)
Gneiss
metamorphic
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (likely Arkosic)
Clastic Sedimentary Rock (primarily SiO2 with Feldspar)
sedimentary
Sandstone Concretion
Clastic Sedimentary Rock (primarily SiO2 with mineral cement)
sedimentary
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Red Moss Agate (Jasper)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Cubic Zirconia (Simulated Diamond)
Zirconium Dioxide (ZrO2)
mineral (synthetic)
Amber with Inclusion
Succiniferous fossil resin (C10H16O)
mineraloid