Rock Identifier

Category

Mixed (Predominantly Sedimentary And Igneous)

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

Learn about Mixed (Predominantly Sedimentary And Igneous) in the encyclopedia

Migmatite

Carbonatite

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Breccia

Ironstone

Turbidite

Lamproite

Troctolite

Basalt

Gabbro

Kimberlite

Pink Granite (Granite (Phaneritic intrusive igneous rock)) — igneous

Pink Granite

Granite (Phaneritic intrusive igneous rock)

Chondrite Meteorite (L3 Chondrite (Unequilibrated Ordinary Chondrite)) — igneous

Chondrite Meteorite

L3 Chondrite (Unequilibrated Ordinary Chondrite)

Chondrite Meteorite (Ordinary Chondrite (L or H type)) — igneous

Chondrite Meteorite

Ordinary Chondrite (L or H type)

Sandstone (Whetstone/Sharpening Stone) (Siliciclastic Sandstone (SiO2 dominant)) — sedimentary

Sandstone (Whetstone/Sharpening Stone)

Siliciclastic Sandstone (SiO2 dominant)

Chert (often called Flint in dark varieties) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (often called Flint in dark varieties)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

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

Sandstone Pebble

Arenite (Clastic Sedimentary Rock)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

Granite cobble (Granite; predominantly quartz, feldspar, and mica) — igneous

Granite cobble

Granite; predominantly quartz, feldspar, and mica

Sandstone (Sandstone (Quartzose/Feldspathic Sandstone)) — sedimentary

Sandstone

Sandstone (Quartzose/Feldspathic Sandstone)

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Phaneritic intrusive igneous rock (composition: Quartz, Feldspar, Mica)) — igneous

Granite

Phaneritic intrusive igneous rock (composition: Quartz, Feldspar, Mica)

Banded Black Onyx (Chalcedony) (Silicon Dioxide (SiO₂)) — mineral

Banded Black Onyx (Chalcedony)

Silicon Dioxide (SiO₂)

Carnelian (Carnelian (Silicon Dioxide - SiO2)) — mineral

Carnelian

Carnelian (Silicon Dioxide - SiO2)

Quartz (Crystal Cluster) (Silicon Dioxide (SiO2)) — mineral

Quartz (Crystal Cluster)

Silicon Dioxide (SiO2)

Granite (Phaneritic Igneous Rock (Granite)) — igneous

Granite

Phaneritic Igneous Rock (Granite)

Chrysocolla in Cuprite / Mixed Copper Ore (Hydrated copper silicate and copper(I) oxide, (Cu,Al)2H2Si2O5(OH)4·nH2O and Cu2O) — mineral

Chrysocolla in Cuprite / Mixed Copper Ore

Hydrated copper silicate and copper(I) oxide, (Cu,Al)2H2Si2O5(OH)4·nH2O and Cu2O

Sandstone (Sedimentary Rock (Quartzose Sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartzose Sandstone)

Heat-Treated Citrine (Silicon Dioxide (SiO2) with iron impurities) — mineral

Heat-Treated Citrine

Silicon Dioxide (SiO2) with iron impurities

Chrysocolla with Malachite (Cu2-xAlx(H2-xSi2O5)(OH)4%CnH2O (Chrysocolla)) — mineral

Chrysocolla with Malachite

Cu2-xAlx(H2-xSi2O5)(OH)4%CnH2O (Chrysocolla)

Chrysocolla (carved) (Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)) — mineral

Chrysocolla (carved)

Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)

Unakite (Unakite (altered granite)) — metamorphic

Unakite

Unakite (altered granite)

Azurite Malachite (Azurite (Cu3(CO3)2(OH)2) and Malachite (Cu2CO3(OH)2)) — mineral

Azurite Malachite

Azurite (Cu3(CO3)2(OH)2) and Malachite (Cu2CO3(OH)2)

Yellow Jasper (Silicon Dioxide (SiO2) with goethite or limonite inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with goethite or limonite inclusions

Dragon Blood Jasper (Epidote with Red Piedmontite (Chalcedony/Quartz variant)) — sedimentary

Dragon Blood Jasper

Epidote with Red Piedmontite (Chalcedony/Quartz variant)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Weathered granite (likely glacial erratic) (Granite; predominantly quartz, feldspar, and mica) — igneous

Weathered granite (likely glacial erratic)

Granite; predominantly quartz, feldspar, and mica

Granite fragment (likely weathered granitic rock) (Granite; predominantly quartz, feldspar, and mica) — igneous

Granite fragment (likely weathered granitic rock)

Granite; predominantly quartz, feldspar, and mica

Rounded granite pebble (Granite, predominantly quartz, feldspar, and mica) — igneous

Rounded granite pebble

Granite, predominantly quartz, feldspar, and mica

Obsidian arrowhead (Volcanic glass (predominantly rhyolitic SiO₂)) — igneous

Obsidian arrowhead

Volcanic glass (predominantly rhyolitic SiO₂)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Flint (Silicon dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Flint

Silicon dioxide (SiO2) - Microcrystalline Quartz

Turquoise in Matrix (Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise in Matrix

Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)

Kambaba Jasper (Rhyolite (with Stromatolite fossil inclusions)) — sedimentary

Kambaba Jasper

Rhyolite (with Stromatolite fossil inclusions)

Jasper (Jasper (Silica/Quartz) - SiO2) — mineral

Jasper

Jasper (Silica/Quartz) - SiO2

Turquoise (Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O

Turquoise (Turquoise (Hydrated phosphate of copper and aluminium) CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

Turquoise (Hydrated phosphate of copper and aluminium) CuAl6(PO4)4(OH)8·4H2O

Amethyst (Amethyst (Silicon Dioxide, SiO2)) — mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Carnelian (Carnelian (a variety of Chalcedony), SiO2 (Silicon Dioxide)) — mineral

Carnelian

Carnelian (a variety of Chalcedony), SiO2 (Silicon Dioxide)

Serpentine (likely polished/tumbled) (Serpentinite; chiefly antigorite, lizardite, and/or chrysotile Mg₃Si₂O₅(OH)₄) — metamorphic

Serpentine (likely polished/tumbled)

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

Weathered iron-rich rock, possibly limonite/goethite or ironstone (Limonite (hydrated iron oxides; commonly goethite, FeO(OH), with hematite and/or magnetite)) — mineral

Weathered iron-rich rock, possibly limonite/goethite or ironstone

Limonite (hydrated iron oxides; commonly goethite, FeO(OH), with hematite and/or magnetite)