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

Limonite with Quartz (FeO(OH)·nH2O (Limonite) with SiO2 (Quartz)) — mineral

Limonite with Quartz

FeO(OH)·nH2O (Limonite) with SiO2 (Quartz)

Red Sandstone (Arenite (primarily Quartz with Iron Oxide coating)) — sedimentary

Red Sandstone

Arenite (primarily Quartz with Iron Oxide coating)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Druse on Basalt Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz Druse on Basalt Matrix

Silicon Dioxide (SiO2)

Black Limestone (Bituminous Limestone (Calcium Carbonate - CaCO3)) — sedimentary

Black Limestone

Bituminous Limestone (Calcium Carbonate - CaCO3)

Rounded granite or granitic gneiss cobble (Granite; primarily quartz, feldspar, and mica (exact identification requires a fresh surface and testing)) — igneous

Rounded granite or granitic gneiss cobble

Granite; primarily quartz, feldspar, and mica (exact identification requires a fresh surface and testing)

Slate (Foliated Metamorphic Rock) — metamorphic

Slate

Foliated Metamorphic Rock

Peridotite (Peridotite (Ultramafic Rock)) — igneous

Peridotite

Peridotite (Ultramafic Rock)

Chert Pebble with Quartz Vein (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Pebble with Quartz Vein

Microcrystalline Quartz (SiO2)

Granite Gneiss (Gneiss (High-grade Metamorphic Rock)) — metamorphic

Granite Gneiss

Gneiss (High-grade Metamorphic Rock)

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

Jasper and Quartz Breccia

Silicified Breccia (SiO2)

Limonite Concretion (Limonite (Hydrated iron oxide) FeO(OH)·nH2O) — sedimentary

Limonite Concretion

Limonite (Hydrated iron oxide) FeO(OH)·nH2O

Quartz geode (Crystalline quartz, silicon dioxide (SiO₂), lining a volcanic geode) — mineral

Quartz geode

Crystalline quartz, silicon dioxide (SiO₂), lining a volcanic geode

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Fossilized Shark Tooth (Chondrichthyes (Class)) — fossil

Fossilized Shark Tooth

Chondrichthyes (Class)

Black-and-white gneiss (Gneiss, chiefly quartz–feldspar with dark biotite/amphibole bands) — metamorphic

Black-and-white gneiss

Gneiss, chiefly quartz–feldspar with dark biotite/amphibole bands

Gneiss (specifically Granitic Gneiss) (Gneiss (composed primarily of Quartz, Feldspar, and Biotite/Amphibole)) — metamorphic

Gneiss (specifically Granitic Gneiss)

Gneiss (composed primarily of Quartz, Feldspar, and Biotite/Amphibole)

Gabbro (Gabbro (Mafic Plutonic Rock)) — igneous

Gabbro

Gabbro (Mafic Plutonic Rock)

Diorite (Diorite (an intrusive igneous rock)) — igneous

Diorite

Diorite (an intrusive igneous rock)

Quartz Druze (Crystalline Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz Druze (Crystalline Quartz)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Limestone with Calcite Veins (Calcium Carbonate (CaCO3)) — sedimentary

Limestone with Calcite Veins

Calcium Carbonate (CaCO3)

Glauconitic Sandstone (Glauconitic Sandstone (contains (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)) — sedimentary

Glauconitic Sandstone

Glauconitic Sandstone (contains (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)

Clear/White Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear/White Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Larvikite cabochon (Larvikite, a feldspar-rich monzonitic intrusive rock; commonly containing blue labradorescent alkali feldspar, nepheline, and dark pyroxene/biotite) — igneous

Larvikite cabochon

Larvikite, a feldspar-rich monzonitic intrusive rock; commonly containing blue labradorescent alkali feldspar, nepheline, and dark pyroxene/biotite

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Obsidian (Volcanic Glass) — igneous

Obsidian

Volcanic Glass

Quartz-veined Sedimentary Rock (Hydrothermally veined Clastic Sedimentary Rock (SiO2 veins in Matrix)) — sedimentary

Quartz-veined Sedimentary Rock

Hydrothermally veined Clastic Sedimentary Rock (SiO2 veins in Matrix)

Turquoise or Chrysocolla (Inlaid Jewelry) (Hydrated copper aluminum phosphate / Hydrated copper phyllosilicate) — mineral

Turquoise or Chrysocolla (Inlaid Jewelry)

Hydrated copper aluminum phosphate / Hydrated copper phyllosilicate

Dalmation Stone (Peralkaline Rock (mixed silicate minerals)) — igneous

Dalmation Stone

Peralkaline Rock (mixed silicate minerals)

Agate (SiO2) — Mineral

Agate

SiO2

Geode (Unopened) (Crystalline Quartz or Chalcedony filled Geode (SiO2)) — sedimentary

Geode (Unopened)

Crystalline Quartz or Chalcedony filled Geode (SiO2)

Sandstone (with Moss) (Quartz Arenite / Sandstone) — sedimentary

Sandstone (with Moss)

Quartz Arenite / Sandstone

Sandstone (Sandstone (SiO2 dominated)) — sedimentary

Sandstone

Sandstone (SiO2 dominated)

Sandstone (Lithic Sandstone / Greywacke) (Sandstone (SiO2 rich clastic sedimentary rock)) — sedimentary

Sandstone (Lithic Sandstone / Greywacke)

Sandstone (SiO2 rich clastic sedimentary rock)

Sandstone Pebble (Sandstone (primarily Quartz, SiO2)) — sedimentary

Sandstone Pebble

Sandstone (primarily Quartz, SiO2)

Sandstone Pebble (Sedimentary Rock (Quartz Arenite)) — sedimentary

Sandstone Pebble

Sedimentary Rock (Quartz Arenite)

Geode (Unopened) (Silica-rich Concretion (SiO2)) — sedimentary

Geode (Unopened)

Silica-rich Concretion (SiO2)

Sandstone (Sandstone (Silicon dioxide, SiO2 based)) — sedimentary

Sandstone

Sandstone (Silicon dioxide, SiO2 based)