Rock Identifier

Category

Sedimentary And Igneous (Mixed)

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

Learn about Sedimentary And Igneous (Mixed) in the encyclopedia

Migmatite

Turbidite

Andesine

Andesite

Andalusite

Andamooka Opal

Andradite Garnet

Andradite Garnet

Andesine-Labradorite

Andesine-Labradorite

Carbonatite

Conglomerate

Ironstone

Quartzite Sandstone

Quartzite Sandstone

Quartz (Tumbled) (SiO2 (Silicon Dioxide)) — mineral

Quartz (Tumbled)

SiO2 (Silicon Dioxide)

Quartz (Citrine or Iron-Stained) (SiO2) — mineral

Quartz (Citrine or Iron-Stained)

SiO2

Citrine (Silicon dioxide (SiO2)) — gemstone

Citrine

Silicon dioxide (SiO2)

Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Calcite

Calcite (Calcium Carbonate, CaCO3)

Apatite (Ca5(PO4)3(F,Cl,OH)) — mineral

Apatite

Ca5(PO4)3(F,Cl,OH)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Quartz fragment (Silicon Dioxide (SiO2)) — mineral

Quartz fragment

Silicon Dioxide (SiO2)

Blue Apatite (Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Ca5(PO4)3(F,Cl,OH)

Quartz (Milky or Clear Quartz fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Clear Quartz fragment)

Silicon Dioxide (SiO2)

Honey calcite crystal fragment (Calcite (calcium carbonate, CaCO₃)) — mineral

Honey calcite crystal fragment

Calcite (calcium carbonate, CaCO₃)

Weathered iron-stained quartzite or chert nodule (Siliceous rock composed chiefly of microcrystalline quartz (SiO₂), with iron-oxide staining and possible clay/minor carbonate minerals) — metamorphic

Weathered iron-stained quartzite or chert nodule

Siliceous rock composed chiefly of microcrystalline quartz (SiO₂), with iron-oxide staining and possible clay/minor carbonate minerals

Honey-colored calcite (Calcite (calcium carbonate, CaCO₃)) — mineral

Honey-colored calcite

Calcite (calcium carbonate, CaCO₃)

Polished brown jasper (Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities) — metamorphic

Polished brown jasper

Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Fancy Jasper (Chalcedony (cryptocrystalline quartz) with inclusions) — Mineral

Fancy Jasper

Chalcedony (cryptocrystalline quartz) with inclusions

Fossiliferous limestone fragment (Calcitic limestone; mainly calcium carbonate (CaCO₃), possibly with shell or coral debris) — sedimentary

Fossiliferous limestone fragment

Calcitic limestone; mainly calcium carbonate (CaCO₃), possibly with shell or coral debris

Dalmatian Jasper (Peralkaline rhyolite with arfvedsonite inclusions) — igneous

Dalmatian Jasper

Peralkaline rhyolite with arfvedsonite inclusions

Dalmatian Jasper (Peralkaline Quartz-Feldspar Rock with Arfvedsonite) — igneous

Dalmatian Jasper

Peralkaline Quartz-Feldspar Rock with Arfvedsonite

Dalmation Stone (Dalmation Jasper (Igneous microcrystalline quartz with arfvedsonite)) — igneous

Dalmation Stone

Dalmation Jasper (Igneous microcrystalline quartz with arfvedsonite)

Polished gray stone, likely labradorite or gneiss (Indeterminate from image; possibly plagioclase-rich gneiss or labradorite-bearing rock) — mineral

Polished gray stone, likely labradorite or gneiss

Indeterminate from image; possibly plagioclase-rich gneiss or labradorite-bearing rock

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Quartz Cluster (Likely Ferruginous) (Silicon Dioxide (SiO2)) — mineral

Quartz Cluster (Likely Ferruginous)

Silicon Dioxide (SiO2)

Red jasper pebble (Microcrystalline quartz (SiO₂), colored chiefly by hematite/goethite) — sedimentary

Red jasper pebble

Microcrystalline quartz (SiO₂), colored chiefly by hematite/goethite

Yellow Ocher (Limonite) (Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O) — mineral

Yellow Ocher (Limonite)

Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O

Magnetite (Iron Ore) (Magnetite (Fe3O4)) — mineral

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Blue Apatite (Fluorapatite / Apatite Group (Ca5(PO4)3(F,Cl,OH))) — mineral

Blue Apatite

Fluorapatite / Apatite Group (Ca5(PO4)3(F,Cl,OH))

Quartz Mineral (Silicon Dioxide (SiO2)) — mineral

Quartz Mineral

Silicon Dioxide (SiO2)

Likely milky quartz fragment (Quartz (SiO₂)) — mineral

Likely milky quartz fragment

Quartz (SiO₂)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Carnelian Agate (Tumbled) (Chalcedony (SiO2)) — mineral

Carnelian Agate (Tumbled)

Chalcedony (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Agate (Silicon Dioxide (Chalcedony), SiO2) — gemstone

Agate

Silicon Dioxide (Chalcedony), SiO2

Agate (SiO2 (Chalcedony/Quartz)) — sedimentary

Agate

SiO2 (Chalcedony/Quartz)

Agate (Silicon dioxide (Chalcedony), SiO2) — gemstone

Agate

Silicon dioxide (Chalcedony), SiO2

Hematite (Iron Oxide (Fe2O3)) — mineral

Hematite

Iron Oxide (Fe2O3)

Tumbled Agate (Silicon Dioxide (Chalcedony variety), SiO2) — gemstone

Tumbled Agate

Silicon Dioxide (Chalcedony variety), SiO2

Tumbled Agate (Silicon Dioxide (SiO2)) — gemstone

Tumbled Agate

Silicon Dioxide (SiO2)

Agate Bookend / Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Agate Bookend / Quartz Geode

Silicon Dioxide (SiO2)

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

Quartz with Inclusions

Silicon Dioxide (SiO2)

Pyrite in Matrix (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite in Matrix (Fool's Gold)

Iron Sulfide (FeS2)

Rounded pebble (likely quartz-rich sandstone or weathered chert) (Indeterminate from image; possibly quartz (SiO₂)-rich lithic material) — sedimentary

Rounded pebble (likely quartz-rich sandstone or weathered chert)

Indeterminate from image; possibly quartz (SiO₂)-rich lithic material