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

Citrine (Silicon Dioxide (SiO2) - Macrocrystalline Quartz variety) — mineral

Citrine

Silicon Dioxide (SiO2) - Macrocrystalline Quartz variety

Amazonite (Tectosilicate Microcline (KAlSi3O8)) — mineral

Amazonite

Tectosilicate Microcline (KAlSi3O8)

Crazy Lace Agate (Silicon Dioxide (SiO2) with iron and aluminum inclusions) — sedimentary

Crazy Lace Agate

Silicon Dioxide (SiO2) with iron and aluminum inclusions

Jasper (specifically Red or Brecciated Jasper variant) (Jasper (Microcrystalline Quartz - SiO2)) — sedimentary

Jasper (specifically Red or Brecciated Jasper variant)

Jasper (Microcrystalline Quartz - SiO2)

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Pegmatite (Granitic Pegmatite) (Pegmatite (Quartz + Potassium Feldspar + Mica)) — igneous

Pegmatite (Granitic Pegmatite)

Pegmatite (Quartz + Potassium Feldspar + Mica)

K-Feldspar Granite Fragment (Felsic Plutonic Rock (Granite)) — igneous

K-Feldspar Granite Fragment

Felsic Plutonic Rock (Granite)

Sandstone (Arenite (predominantly Quartz Sandstone)) — sedimentary

Sandstone

Arenite (predominantly Quartz Sandstone)

Dream Amethyst (Chevron Amethyst) (Silicon Dioxide (SiO2) with iron impurities and gamma radiation exposure) — Mineral

Dream Amethyst (Chevron Amethyst)

Silicon Dioxide (SiO2) with iron impurities and gamma radiation exposure

Chrysocolla (Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O)) — mineral

Chrysocolla

Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O)

Tumbled jasper (Microcrystalline quartz (chalcedony), predominantly SiO₂, with iron-oxide inclusions) — igneous

Tumbled jasper

Microcrystalline quartz (chalcedony), predominantly SiO₂, with iron-oxide inclusions

Sandstone Cobble (Arenite (predominantly Quartz Sandstone)) — sedimentary

Sandstone Cobble

Arenite (predominantly Quartz Sandstone)

Tumbled red jasper (Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides) — mineral

Tumbled red jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides

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

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Sandstone Pebble (Sedimentary Rock (Quartzose Sandstone)) — sedimentary

Sandstone Pebble

Sedimentary Rock (Quartzose Sandstone)

Dyed and polished gemstone chips (Mostly chalcedony (microcrystalline quartz, SiO₂), with probable amethyst and agate varieties) — gemstone

Dyed and polished gemstone chips

Mostly chalcedony (microcrystalline quartz, SiO₂), with probable amethyst and agate varieties

Crazy Lace Agate (Silicon Dioxide (SiO2)) — sedimentary

Crazy Lace Agate

Silicon Dioxide (SiO2)

Iron Ore / Hematite Rock (Iron oxide (primarily Hematite, Fe2O3)) — mineral

Iron Ore / Hematite Rock

Iron oxide (primarily Hematite, Fe2O3)

Banded Agate (Orca Agate) (Silicon Dioxide (SiO2) - Chalcedony variety) — mineral

Banded Agate (Orca Agate)

Silicon Dioxide (SiO2) - Chalcedony variety

Pink Opal (Hydrated Silica (SiO2·nH2O) with Palygorskite/Sepiolite inclusions) — gemstone

Pink Opal

Hydrated Silica (SiO2·nH2O) with Palygorskite/Sepiolite inclusions

White Quartz (Tumbled/Waterworn) (Silicon Dioxide (SiO2)) — mineral

White Quartz (Tumbled/Waterworn)

Silicon Dioxide (SiO2)

Milk Quartz (White) and Yellow Aventurine (Yellow) (Silicon Dioxide (SiO2)) — mineral

Milk Quartz (White) and Yellow Aventurine (Yellow)

Silicon Dioxide (SiO2)

Rose Quartz (Silicon dioxide (SiO2)) — mineral

Rose Quartz

Silicon dioxide (SiO2)

Jasper (Yellow/Brown variety) (Silicon Dioxide (SiO2) with iron oxide impurities) — sedimentary

Jasper (Yellow/Brown variety)

Silicon Dioxide (SiO2) with iron oxide impurities

Sugilite (Sugilite [KNa2(Fe,Mn,Al)2Li3Si12O30]) — mineral

Sugilite

Sugilite [KNa2(Fe,Mn,Al)2Li3Si12O30]

Moonstone (Orthoclase (KAlSi3O8), specifically the variety showing adularescence) — mineral

Moonstone

Orthoclase (KAlSi3O8), specifically the variety showing adularescence

Labradorite (Plagioclase Feldspar ((Ca, Na)(Al, Si)4O8)) — mineral

Labradorite

Plagioclase Feldspar ((Ca, Na)(Al, Si)4O8)

Amazonite (Microcline (variety Amazonite), K(AlSi3O8)) — mineral

Amazonite

Microcline (variety Amazonite), K(AlSi3O8)

Pink Granite (Felsic Intrusive Igneous Rock) — igneous

Pink Granite

Felsic Intrusive Igneous Rock

Sandstone Pebble (Sedimentary Rock (Quartzose Sandstone)) — sedimentary

Sandstone Pebble

Sedimentary Rock (Quartzose Sandstone)

Weathered limestone cobble (Limestone, predominantly calcite (CaCO₃)) — sedimentary

Weathered limestone cobble

Limestone, predominantly calcite (CaCO₃)

Weathered limestone fragment (Limestone, predominantly calcite (CaCO₃)) — sedimentary

Weathered limestone fragment

Limestone, predominantly calcite (CaCO₃)

Weathered limestone (Limestone, predominantly calcite (CaCO₃)) — sedimentary

Weathered limestone

Limestone, predominantly calcite (CaCO₃)

Sandstone (Sandstone (composed predominantly of SiO2)) — sedimentary

Sandstone

Sandstone (composed predominantly of SiO2)

Chert (or Flint) (SiO2 (predominantly microcrystalline quartz)) — Sedimentary

Chert (or Flint)

SiO2 (predominantly microcrystalline quartz)

Fossiliferous Limestone (Crinoidal) (Bioclastic Limestone (predominantly CaCO3)) — sedimentary

Fossiliferous Limestone (Crinoidal)

Bioclastic Limestone (predominantly CaCO3)

Sandstone with Quartz Sphere (Arenite (SiO2-rich sedimentary rock) with Quartzite/Rose Quartz sphere) — sedimentary

Sandstone with Quartz Sphere

Arenite (SiO2-rich sedimentary rock) with Quartzite/Rose Quartz sphere

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

Amethyst (Quartz)

Silicon Dioxide (SiO2)

Bauxite (Bauxite (Al(OH)3 mixed with Fe2O3 and clay minerals)) — sedimentary

Bauxite

Bauxite (Al(OH)3 mixed with Fe2O3 and clay minerals)

Ironstone Concretion (Moqui Marble) (Iron Oxide Concretion (Fe2O3 / FeO(OH) mixed with SiO2)) — sedimentary

Ironstone Concretion (Moqui Marble)

Iron Oxide Concretion (Fe2O3 / FeO(OH) mixed with SiO2)

Granitic Gneiss (Gneiss (Metamorphic rock predominantly containing quartz, K-feldspar, and plagioclase)) — metamorphic

Granitic Gneiss

Gneiss (Metamorphic rock predominantly containing quartz, K-feldspar, and plagioclase)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese