Rock Identifier

Category

Mixed (Igneous, Sedimentary, Metamorphic, And Minerals)

Browse mixed (igneous, sedimentary, metamorphic, and minerals) specimens identified by the Rock Identifier community.

Learn about Mixed (Igneous, Sedimentary, Metamorphic, And Minerals) in the encyclopedia

Migmatite

Carbonatite

Metabasalt

Cordierite Hornfels

Cordierite Hornfels

Coal

Metagabbro

Claystone

Calc-Silicate Rock

Calc-Silicate Rock

Turbidite

Calc-schist

Shale

Eltyubyuite

Quartz with Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz with Matrix

Silicon Dioxide (SiO2)

Quartz pebble (Silicon Dioxide (SiO2)) — mineral

Quartz pebble

Silicon Dioxide (SiO2)

K-feldspar Granite / Red Granite Fragment (Alkali feldspar granite (Plutonic igneous rock)) — igneous

K-feldspar Granite / Red Granite Fragment

Alkali feldspar granite (Plutonic igneous rock)

Likely banded gneiss (Gneiss, a foliated metamorphic rock composed chiefly of quartz, feldspar, and mica) — metamorphic

Likely banded gneiss

Gneiss, a foliated metamorphic rock composed chiefly of quartz, feldspar, and mica

Petrified Wood and Mixed Rocks (Silicified Wood (SiO2)) — fossil

Petrified Wood and Mixed Rocks

Silicified Wood (SiO2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

Blue Apatite (Fluoroapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluoroapatite (Ca5(PO4)3F)

Gneiss (Metamorphic Gneiss (High-grade regional metamorphism)) — metamorphic

Gneiss

Metamorphic Gneiss (High-grade regional metamorphism)

Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz-rich pebble (likely milky quartz) (Quartz, SiO₂) — mineral

Quartz-rich pebble (likely milky quartz)

Quartz, SiO₂

Magnetite / Hematite rich ore (Magnetite (Fe3O4) or Hematite (Fe2O3)) — mineral

Magnetite / Hematite rich ore

Magnetite (Fe3O4) or Hematite (Fe2O3)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz pebble

Silicon dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Conglomerate (pebble conglomerate) (Clastic sedimentary rock composed of rounded gravel-sized clasts in a finer matrix) — sedimentary

Conglomerate (pebble conglomerate)

Clastic sedimentary rock composed of rounded gravel-sized clasts in a finer matrix

Conglomerate (Conglomerate (Sedimentary Clastic Rock)) — sedimentary

Conglomerate

Conglomerate (Sedimentary Clastic Rock)

Copper-stained quartz/igneous rock specimen (Quartz (SiO₂), with secondary copper minerals; host likely altered volcanic rock) — mineral

Copper-stained quartz/igneous rock specimen

Quartz (SiO₂), with secondary copper minerals; host likely altered volcanic rock

Quartz-rich gneiss (Foliated quartz–feldspar–mica gneiss, possibly migmatitic) — metamorphic

Quartz-rich gneiss

Foliated quartz–feldspar–mica gneiss, possibly migmatitic

Granite (likely) (Coarse-grained felsic intrusive igneous rock, principally quartz and feldspar with dark mica or amphibole) — igneous

Granite (likely)

Coarse-grained felsic intrusive igneous rock, principally quartz and feldspar with dark mica or amphibole

Quartz (Silicon dioxide (SiO2)) — mineral

Quartz

Silicon dioxide (SiO2)

Iron-stained quartz-rich rock, possibly ironstone or quartz-vein material (Quartz (SiO₂) with iron oxides/hydroxides; exact host rock cannot be determined from the image) — metamorphic

Iron-stained quartz-rich rock, possibly ironstone or quartz-vein material

Quartz (SiO₂) with iron oxides/hydroxides; exact host rock cannot be determined from the image

Polymict conglomerate (Clastic conglomerate, likely polymictic and matrix-supported) — sedimentary

Polymict conglomerate

Clastic conglomerate, likely polymictic and matrix-supported

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Quartz Pebble (Quartz (SiO2)) — sedimentary

Quartz Pebble

Quartz (SiO2)

Quartz River Rock (Silicon Dioxide (SiO2)) — mineral

Quartz River Rock

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

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

Granite Gneiss

Gneiss (High-grade Metamorphic Rock)

Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

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

Quartz (Milky/Common Quartz)

Silicon Dioxide (SiO2)

Quartz (Pink / Ferruginous) (Silicon Dioxide (SiO2)) — mineral

Quartz (Pink / Ferruginous)

Silicon Dioxide (SiO2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Lapis Lazuli (Lapis Lazuli (Complex rock primarily composed of Lazurite (Na,Ca)8[(SO4,S,Cl)2|(AlSiO4)6], Calcite, and Pyrite)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Complex rock primarily composed of Lazurite (Na,Ca)8[(SO4,S,Cl)2|(AlSiO4)6], Calcite, and Pyrite)