Clear Quartz (or Rock Crystal)
Quartz (SiO₂)
Mineral
Category
Sedimentary And Metamorphic
Browse sedimentary and metamorphic specimens identified by the Rock Identifier community.
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Black Sand (Magnetite Sand)
Magnetite-rich Placers (Fe3O4)
sedimentary
Petrified Wood (Silicified Wood)
Silicified fossil wood (SiO2)
metamorphic
Pyrite (Fools Gold)
Iron Sulfide (FeS2)
mineral
Gneiss
Gneiss
metamorphic
Epidote
Epidote; Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
mineral
Pink Quartzite
Quartzite (SiO2 with iron oxide inclusions)
metamorphic
Quartzite
Quartzite (SiO2)
Metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Gneiss
Gneiss
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
Orange Quartzite (Tumbled)
Quartzite (SiO2)
metamorphic
Blue Quartz (Aventurine)
Silicon Dioxide (SiO2) with Crocidolite or Magnesio-riebeckite inclusions
metamorphic
Anthracite Coal
Anthracite (Carbon based fossil fuel)
metamorphic
Quartzite with inclusions
Quartzite (primarily SiO2)
metamorphic
Quartzite (River Cobble)
Quartzite (primarily SiO2)
metamorphic
Pyrite
Iron Disulfide (FeS2)
mineral
Quartz (specifically Milky/White Quartz)
Silicon Dioxide (SiO2)
mineral
Green Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Feldspar
KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8
mineral
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz (Milky/Rose variety)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcite (Calcium Carbonate - CaCO3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Magnetite Sand (Black Sand)
Magnetite (Fe3O4)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Anthracite Coal
Anthracite (Carbon-rich metamorphic rock)
metamorphic
Gneiss
High-grade foliated metamorphic rock
metamorphic
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic