Rock Identifier

Category

Mineral, Often Found As A Rock

Browse mineral, often found as a rock specimens identified by the Rock Identifier community.

Learn about Mineral, Often Found As A Rock in the encyclopedia

Rock Salt

Rock Gypsum

Coral Rock

Asphalt Rock

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Halite

Dolomite

Gypsum

Coal

Limestone

Glauconite

Quartz (likely heat-treated or colored cord) (Silicon Dioxide (SiO2)) — mineral

Quartz (likely heat-treated or colored cord)

Silicon Dioxide (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Tumbled greenish serpentine (Serpentinite; chiefly antigorite/lizardite, Mg₃Si₂O₅(OH)₄) — metamorphic

Tumbled greenish serpentine

Serpentinite; chiefly antigorite/lizardite, Mg₃Si₂O₅(OH)₄

Granite Pebble (Granite) — igneous

Granite Pebble

Granite

Agate Geode (Silicon Dioxide (SiO2) - Chalcedony variety) — sedimentary

Agate Geode

Silicon Dioxide (SiO2) - Chalcedony variety

Jadeite Jade (NaAlSi2O6 (Sodium Aluminum Silicate)) — metamorphic

Jadeite Jade

NaAlSi2O6 (Sodium Aluminum Silicate)

Chert (Flint Nodules) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint Nodules)

Silicon Dioxide (SiO2)

Quartzite (Quartzite (Primary mineral: SiO2)) — metamorphic

Quartzite

Quartzite (Primary mineral: SiO2)

Red Jasper (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Greenish Feldspathic Rock / Epidote Granite (Unakite-type or Epidote-bearing rock) (Epidotized Metamorphic/Igneous Rock) — metamorphic

Greenish Feldspathic Rock / Epidote Granite (Unakite-type or Epidote-bearing rock)

Epidotized Metamorphic/Igneous Rock

Chert (Flint) (Chert (Silicon Dioxide, SiO2)) — sedimentary

Chert (Flint)

Chert (Silicon Dioxide, SiO2)

River Stone (likely Basalt or Greywacke) (Basalt with mineral veining) — igneous

River Stone (likely Basalt or Greywacke)

Basalt with mineral veining

Red Jasper (SiO2) — mineral

Red Jasper

SiO2

Chert with Quartz Veins (Microcrystalline silica (SiO2)) — sedimentary

Chert with Quartz Veins

Microcrystalline silica (SiO2)

Brown Quartz (Jasper or Chert) (Silicon Dioxide (SiO2)) — sedimentary

Brown Quartz (Jasper or Chert)

Silicon Dioxide (SiO2)

Quartzite River Pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite River Pebble

Quartzite (primarily SiO2)

Yellow Chert or Jasper (Silicon Dioxide (SiO2)) — sedimentary

Yellow Chert or Jasper

Silicon Dioxide (SiO2)

Chert (Jasper) (Cryptocrystalline Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper)

Cryptocrystalline Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Que Sera Stone (Llanite with Feldspar and Quartz) (Rhyolite with blue quartz and pink orthoclase (Llanite-type quartz porphyry)) — igneous

Que Sera Stone (Llanite with Feldspar and Quartz)

Rhyolite with blue quartz and pink orthoclase (Llanite-type quartz porphyry)

Chert Nodule (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Nodule

Microcrystalline Quartz (SiO2)

Chert (Quartz Variety) (Chert (Silicon Dioxide, SiO2)) — sedimentary

Chert (Quartz Variety)

Chert (Silicon Dioxide, SiO2)

Sandstone Concretion (Sedimentary Concretion (Quartz sand bound by mineral cement)) — sedimentary

Sandstone Concretion

Sedimentary Concretion (Quartz sand bound by mineral cement)

Geode (Quartz / Chalcedony nodule) — sedimentary

Geode

Quartz / Chalcedony nodule

Serpentinite (Serpentinite (composed primarily of Serpentine group minerals (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)

Banded Agate (Cryptocrystalline Quartz (SiO2)) — sedimentary

Banded Agate

Cryptocrystalline Quartz (SiO2)

Quartzite Pebbler (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebbler

Quartzite (primarily SiO2)

Green Aventurine (Quartzite with Fuchsite inclusions (SiO2 with K(Al,Cr)2AlSi3O10(OH)2)) — metamorphic

Green Aventurine

Quartzite with Fuchsite inclusions (SiO2 with K(Al,Cr)2AlSi3O10(OH)2)

Unakite (or Epidote-rich Granite) (Unakite (Metamorphosed Granite consisting of Epidote, Orthoclase, and Quartz)) — metamorphic

Unakite (or Epidote-rich Granite)

Unakite (Metamorphosed Granite consisting of Epidote, Orthoclase, and Quartz)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Vein Quartz in Basalt or Mafic Rock (Silicon Dioxide (Quartz veins in volcanic host rock)) — igneous

Vein Quartz in Basalt or Mafic Rock

Silicon Dioxide (Quartz veins in volcanic host rock)

Chalcopyrite (Chalcopyrite (CuFeS2)) — Mineral

Chalcopyrite

Chalcopyrite (CuFeS2)

Chert / Flint Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Chert / Flint Jasper

Microcrystalline Quartz (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Chalcedony (Chalcedony (a microcrystalline variety of Quartz, SiO2)) — Mineral

Chalcedony

Chalcedony (a microcrystalline variety of Quartz, SiO2)

Chert (Yellow Jasper/Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Yellow Jasper/Flint)

Silicon Dioxide (SiO2)

Quartzite (River Stone) (Quartzite (SiO2)) — metamorphic

Quartzite (River Stone)

Quartzite (SiO2)

Chalcopyrite (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Basalt with Secondary Mineralization (Likely Zeolites or Calcite) (Aphanitic mafic volcanic rock with secondary mineral inclusions (e.g., CaAl2Si3O10·3H2O for Scolecite)) — igneous

Basalt with Secondary Mineralization (Likely Zeolites or Calcite)

Aphanitic mafic volcanic rock with secondary mineral inclusions (e.g., CaAl2Si3O10·3H2O for Scolecite)

Rose Quartz (SiO2 (Silicon Dioxide)) — mineral

Rose Quartz

SiO2 (Silicon Dioxide)

Rose Quartz (Quartz (SiO₂), variety Rose Quartz) — Mineral

Rose Quartz

Quartz (SiO₂), variety Rose Quartz