Rock Identifier

Category

Not A Rock Or Mineral

Browse not a rock or mineral specimens identified by the Rock Identifier community.

Learn about Not A Rock Or Mineral in the encyclopedia

Claystone

Shale

Rock Salt

Rock Gypsum

Coral Rock

Asphalt Rock

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Albite

Potassium Feldspar

Potassium Feldspar

Halite

Dolomite

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Iron-stained weathered stone (tentative) (Undetermined; possibly weathered iron-rich basalt or concretion) — mineral

Iron-stained weathered stone (tentative)

Undetermined; possibly weathered iron-rich basalt or concretion

River Rock (Polished Siliceous Rock / Quartzite Pebble) — sedimentary

River Rock

Polished Siliceous Rock / Quartzite Pebble

Granite fragment (Granite) — igneous

Granite fragment

Granite

Plume Agate (Silicon Dioxide (SiO2)) — mineral

Plume Agate

Silicon Dioxide (SiO2)

Sandstone (Arenite (SiO2 principal component)) — sedimentary

Sandstone

Arenite (SiO2 principal component)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Gossan (Iron Hat) with Quartz and Chlorite (Limonite/Goethite-rich Gossan (FeO(OH)·nH2O) with inclusions of Quartz and Chlorite) — Mineral/Metamorphic Substrate

Gossan (Iron Hat) with Quartz and Chlorite

Limonite/Goethite-rich Gossan (FeO(OH)·nH2O) with inclusions of Quartz and Chlorite

Mineral/Metamorphic Substrate

Red Jasper (Jasper (Silicate mineral - SiO2)) — sedimentary

Red Jasper

Jasper (Silicate mineral - SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Jasper and Quartz Breccia (Silicified breccia (SiO2)) — sedimentary

Jasper and Quartz Breccia

Silicified breccia (SiO2)

Quartz (Iron-stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Sandstone (Arenite (SiO2 based with mineral cements)) — sedimentary

Sandstone

Arenite (SiO2 based with mineral cements)

Quartz pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz pebble

Silicon dioxide (SiO2)

Druzy Quartz (on Chalcedony/Agate base) (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz (on Chalcedony/Agate base)

Silicon Dioxide (SiO2)

Likely weathered quartz-rich rock fragment (Uncertain; possibly granitic pegmatite or quartz-bearing metamorphic rock) — igneous

Likely weathered quartz-rich rock fragment

Uncertain; possibly granitic pegmatite or quartz-bearing metamorphic rock

Amber (Fossilized Tree Resin) — gemstone

Amber

Fossilized Tree Resin

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Milky/Granular) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Granular)

Silicon Dioxide (SiO2)

Red Sandstone (Sedimentary Clastic Rock (Quartz Arenite / Arkose)) — sedimentary

Red Sandstone

Sedimentary Clastic Rock (Quartz Arenite / Arkose)

Granite (Intrusive Igneous Rock (Felsic)) — igneous

Granite

Intrusive Igneous Rock (Felsic)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Metamorphic Rock)

Drupa or Druzy Quartz on Geode Fragment (Crystalline Silicon Dioxide (SiO2)) — mineral

Drupa or Druzy Quartz on Geode Fragment

Crystalline Silicon Dioxide (SiO2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Sandstone (Sandstone (Arenite)) — sedimentary

Sandstone

Sandstone (Arenite)

Quartz (Chalcedony / Rough Quartz Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (Chalcedony / Rough Quartz Pebble)

Silicon Dioxide (SiO2)

Quartz Vein in Host Rock (Silicon Dioxide (SiO2) with host rock (often Schist or Basalt)) — mineral

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) with host rock (often Schist or Basalt)

Quartz Vein in Host Rock (Quartz (SiO2) in metamorphic host rock (likely schist or phyllite)) — metamorphic

Quartz Vein in Host Rock

Quartz (SiO2) in metamorphic host rock (likely schist or phyllite)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Snowflake Obsidian (Volcanic glass containing Spherulitic inclusions (SiO2 + impurities)) — igneous

Snowflake Obsidian

Volcanic glass containing Spherulitic inclusions (SiO2 + impurities)

Sandstone (Ferruginous) (Arenite (with Iron Oxide cement)) — sedimentary

Sandstone (Ferruginous)

Arenite (with Iron Oxide cement)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Quartz pebble (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz pebble

Quartz (Silicon Dioxide, SiO2)

Chalcedony (Agate / Quartz Pebble) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate / Quartz Pebble)

Silicon Dioxide (SiO2)

Quartz Pebble (River Agate / Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble (River Agate / Chalcedony)

Silicon Dioxide (SiO2)

Chalcedony Pebble (Silicon Dioxide (SiO2)) — mineral

Chalcedony Pebble

Silicon Dioxide (SiO2)

Ferruginous Quartz (Red Quartz) (Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)) — mineral

Ferruginous Quartz (Red Quartz)

Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)