Limestone or Sandstone Cobble
Sedimentary rock (Calcium carbonate or Quartz based)
sedimentary
Category
Man Made Composite (Lithified Equivalent Of Sedimentary)
Browse man made composite (lithified equivalent of sedimentary) specimens identified by the Rock Identifier community.
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Sandstone
Arenite (SiO2 primarily)
sedimentary
Red Sandstone
Arenite (primarily Quartz with Iron Oxide)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Diamond
Carbon (C)
gemstone
Red Quartzite
Quartzite (Metamorphic quartz sandstone)
metamorphic
Aragonite
Aragonite (Calcium Carbonate - CaCO3)
mineral
Diamond
Carbon (C)
mineral
Pegmatite with Smoky Quartz and Feldspar
Pegmatite (Quartz: SiO2, Feldspar: KAlSi3O8)
igneous
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Diamond
Carbon (C)
mineral
Diamond
Carbon (C)
mineral
Quartz
Quartz (Silicon Dioxide, SiO2)
Mineral
Pearl
Aragonite (CaCO3 with conchiolin)
mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Mineral
Diamond (or Cubic Zirconia simulant)
Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ
mineral
Quartz
Quartz (SiO₂)
mineral
Smoky Quartz Cluster
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Quartzite
Metamorphic quartz rock (SiO2)
metamorphic
Diamond (faceted)
Diamond (Pure Carbon, C)
mineral
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Sandstone (likely Arkosic or Lithic)
Clastic Sedimentary Rock (composed mostly of SiO2)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (SiO2 dominated)
sedimentary
Sandstone
Sandstone (Silicon dioxide, SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based typically)
sedimentary
Sandstone (specifically Arkose or Ferruginous Sandstone)
Sandstone (SiO2 predominant)
sedimentary
Clear Quartz (Rock Crystal)
Quartz (SiO₂)
Mineral
Limonitic Sandstone with Inclusion
Limonitic Quartz Sandstone (primarily SiO2 with FeO(OH)·nH2O)
sedimentary
Diamond (in a jewelry setting)
Cubic Carbon (C)
mineral
Quartzite
Metamorphic Quartz Arenite
metamorphic
Diamond
Carbon (C)
gemstone
Calcite
Calcite (Mineral; CaCO₃)
Mineral
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Milky calcite specimen
Calcite (calcium carbonate, CaCO₃)
mineral
Quartzite
Quartzite (primarily composed of SiO O₂)
Sedimentary Rock
Petrified Wood
Silicified wood (primarily quartz, SiO2)
fossil
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Diamond (Cluster Ring)
Carbon (C)
mineral
Diamond
Carbon (C)
mineral