Basalt
Basalt
Category
Browse sedimentary (man made) specimens identified by the Rock Identifier community.
Basalt
Basalt
Diamond in Kimberlite
Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
Basalt
Basalt (Mafic volcanic rock)
Diamond
Diamond (pure Carbon, C)
Diamond
C (Pure Carbon)
Diamond
Carbon (C)
Quartzite
Quartzite (Metamorphosed Sandstone)
Quartzite
Metamorphic Quartzite (SiO2)
Basalt
Basalt (containing plagioclase, pyroxene, and olivine)
Diamond
Carbon (C)
Quartz
Quartz (Silicon Dioxide, SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Sandstone (Garden Boulder)
Sandstone (SiO2 dominated)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Quartz
Quartz (SiO2 - Silicon Dioxide)
Red Quartzite
Quartzite (Metamorphic quartz sandstone)
Aragonite
Aragonite (Calcium Carbonate - CaCO3)
Quartz
Quartz (SiO₂)
Quartzite
Metamorphic Quartzite (SiO2)
Diamond
Carbon (C)
Diamond
Carbon (C)
Sandstone (Ferruginous)
Clastic sedimentary rock (SiO2 with Fe2O3)
Diamond
Carbon (C)
Goldstone (aventurine glass)
Synthetic copper-bearing soda-lime glass; commonly sold as red goldstone
Pearl
Aragonite (CaCO3 with conchiolin)
Clear Quartz (Rock Crystal)
Quartz (SiO₂)
Smoky Quartz Cluster
Smoky Quartz (Silicon Dioxide - SiO2)
Diamond (faceted)
Diamond (Pure Carbon, C)
Quartzite
Metamorphic quartz rock (SiO2)
Quartzite
Metamorphic Quartzite (SiO2)
Calcite
Calcite (Mineral; CaCO₃)
Raw calcite specimen
Calcite, calcium carbonate (CaCO₃)
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Weathered iron-rich sandstone or ferruginous siltstone
Clastic sedimentary rock, likely quartz-rich sandstone cemented by iron oxides (Fe₂O₃/Fe₃O₄)
Diamond (in a jewelry setting)
Cubic Carbon (C)
Nacre (Mother of Pearl)
Nacre (Biogenic Aragonite/Calcite composite, CaCO3)
Diamond
Carbon (C)
Quartzite
Metamorphic Quartz Arenite
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Quartzite
Metamorphic Quartzite (SiO2)
Diamond (Cluster Ring)
Carbon (C)