Rock Identifier

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Igneous And Sedimentary Mixture

Browse igneous and sedimentary mixture specimens identified by the Rock Identifier community.

Learn about Igneous And Sedimentary Mixture in the encyclopedia

Marl

Goldmanite

Andesine

Andesite

Andalusite

Andamooka Opal

Andradite Garnet

Andradite Garnet

Andesine-Labradorite

Andesine-Labradorite

Carbonatite

Conglomerate

Ironstone

Quartzite Sandstone

Quartzite Sandstone

Chert (and Jasper/Chalcedony mixture) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (and Jasper/Chalcedony mixture)

Microcrystalline Quartz (SiO2)

Mixed river gravel (alluvial conglomeratic sediment) (Polymictic alluvium; composition includes quartz, feldspar, chert, granite, basalt, and metamorphic rock fragments) — sedimentary

Mixed river gravel (alluvial conglomeratic sediment)

Polymictic alluvium; composition includes quartz, feldspar, chert, granite, basalt, and metamorphic rock fragments

Carnelian Agate (Cryptocrystalline Quartz (SiO2) with Iron Oxide impurities) — mineral

Carnelian Agate

Cryptocrystalline Quartz (SiO2) with Iron Oxide impurities

Yellow Chalcedony (Silicon Dioxide (SiO2)) — mineral

Yellow Chalcedony

Silicon Dioxide (SiO2)

Tumbled blue sodalite beads (Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂, likely with white albite or calcite veining) — mineral

Tumbled blue sodalite beads

Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂, likely with white albite or calcite veining

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

Agate

Silicon Dioxide (Chalcedony), SiO2

Limonite (Iron Ore) (Limonite (mixture of hydrated iron(III) oxide-hydroxides)) — Mineral

Limonite (Iron Ore)

Limonite (mixture of hydrated iron(III) oxide-hydroxides)

Rounded river pebbles (mixed lithologies) (Water-worn clasts; individual stones cannot be identified precisely from the image) — sedimentary

Rounded river pebbles (mixed lithologies)

Water-worn clasts; individual stones cannot be identified precisely from the image

Quartz-rich conglomeratic breccia (Polymictic clast-supported conglomerate/breccia, dominated by quartz and feldspar) — sedimentary

Quartz-rich conglomeratic breccia

Polymictic clast-supported conglomerate/breccia, dominated by quartz and feldspar

Weathered iron-rich concretion or ironstone nodule (Goethite–hematite limonite concretion (FeO(OH), Fe₂O₃, and hydrous iron oxides)) — sedimentary

Weathered iron-rich concretion or ironstone nodule

Goethite–hematite limonite concretion (FeO(OH), Fe₂O₃, and hydrous iron oxides)

Limonite (Iron Ore) (Hydrous ferric oxides (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Hydrous ferric oxides (FeO(OH)·nH2O)

Bauxite (Hydrated aluminum oxides (mixture of gibbsite, boehmite, and diaspore)) — sedimentary

Bauxite

Hydrated aluminum oxides (mixture of gibbsite, boehmite, and diaspore)

Bumblebee Jasper (Anhydrite with Sulfur, Hematite, and Orpiment (SiO2/CaSO4 mixture)) — sedimentary

Bumblebee Jasper

Anhydrite with Sulfur, Hematite, and Orpiment (SiO2/CaSO4 mixture)

Pyrite (locally known as Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (locally known as Fool's Gold)

Iron Sulfide (FeS2)

Limonite / Ironstone (Hydrated Iron Oxide (FeO(OH)·nH2O)) — mineral

Limonite / Ironstone

Hydrated Iron Oxide (FeO(OH)·nH2O)

Fancy Jasper (Silicon Dioxide (SiO2) with mineral inclusions) — sedimentary

Fancy Jasper

Silicon Dioxide (SiO2) with mineral inclusions

Bumblebee Jasper (Fossiliferous Volcanic Rock (composed of Calcium Carbonate, Manganese Oxides, and Arsenic Sulfides)) — igneous

Bumblebee Jasper

Fossiliferous Volcanic Rock (composed of Calcium Carbonate, Manganese Oxides, and Arsenic Sulfides)

Tumbled sodalite (Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂) — mineral

Tumbled sodalite

Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂

Mixed gravelly conglomeratic road aggregate (Polymictic clast-supported conglomerate or fill; composition varies, commonly quartz, feldspar, basalt, and weathered rock fragments) — sedimentary

Mixed gravelly conglomeratic road aggregate

Polymictic clast-supported conglomerate or fill; composition varies, commonly quartz, feldspar, basalt, and weathered rock fragments

Chert (Siltstone-Chert mixture) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Siltstone-Chert mixture)

Microcrystalline Quartz (SiO2)

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

Agate

Silicon Dioxide (Chalcedony), SiO2

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

Agate

Silicon Dioxide (Chalcedony), SiO2

Limonite (Iron Ore) (FeO(OH)·nH2O (Hydrous ferric oxide)) — mineral

Limonite (Iron Ore)

FeO(OH)·nH2O (Hydrous ferric oxide)

Limonite (after Pyrite Pseudomorph) (Limonite (Hydrated Iron Oxide Mixture, FeO(OH)·nH2O)) — mineral

Limonite (after Pyrite Pseudomorph)

Limonite (Hydrated Iron Oxide Mixture, FeO(OH)·nH2O)

Chalcedony (Agate and Carnelian varieties) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate and Carnelian varieties)

Silicon Dioxide (SiO2)

Tumbled sodalite (Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂) — mineral

Tumbled sodalite

Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂

Epidote (Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — metamorphic

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Limonite and Goethite (Ironstone) (Hydrous Iron Oxide Mixture (FeO(OH)·nH2O)) — sedimentary

Limonite and Goethite (Ironstone)

Hydrous Iron Oxide Mixture (FeO(OH)·nH2O)

Septarian Nodule (Septarian Nodule (Mixture of Calcite, Aragonite, and Limestone/Clay)) — sedimentary

Septarian Nodule

Septarian Nodule (Mixture of Calcite, Aragonite, and Limestone/Clay)

Septarian Nodule (Septarian concretion (Complex mixture of Siderite, Calcite, and Aragonite)) — sedimentary

Septarian Nodule

Septarian concretion (Complex mixture of Siderite, Calcite, and Aragonite)

Agate (Chalcedony (SiO2)) — mineral

Agate

Chalcedony (SiO2)

Tumbled Agate (Silicon Dioxide (Quartz variety: Chalcedony)) — gemstone

Tumbled Agate

Silicon Dioxide (Quartz variety: Chalcedony)

Blue Agate Slice (Chalcedony (SiO2)) — gemstone

Blue Agate Slice

Chalcedony (SiO2)

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

Agate

Silicon dioxide (Chalcedony), SiO2

Quartz-veined Greywacke (Lithic Wacke with Siliceous Veins) — sedimentary

Quartz-veined Greywacke

Lithic Wacke with Siliceous Veins

Greywacke with Quartz Veins (Lithic Sandstone (Greywacke) with SiO2 inclusions) — sedimentary

Greywacke with Quartz Veins

Lithic Sandstone (Greywacke) with SiO2 inclusions

Yellow Agate (Silicon Dioxide (SiO2)) — gemstone

Yellow Agate

Silicon Dioxide (SiO2)

Epidote (Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — mineral

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Ruby Zoisite (Anyolite (Ca2Al3(SiO4)3(OH) + Al2O3:Cr)) — metamorphic

Ruby Zoisite

Anyolite (Ca2Al3(SiO4)3(OH) + Al2O3:Cr)

Pyrulite (Pyrite / Chalcopyrite) (Iron Sulfide (FeS2) or Copper Iron Sulfide (CuFeS2)) — mineral

Pyrulite (Pyrite / Chalcopyrite)

Iron Sulfide (FeS2) or Copper Iron Sulfide (CuFeS2)

Small white quartz fragment (Quartz (silicon dioxide, SiO₂)) — mineral

Small white quartz fragment

Quartz (silicon dioxide, SiO₂)

Iron-rich weathered rock, possibly limonite-bearing sandstone or laterite (Goethite–hematite/limonite assemblage, likely in a ferruginous sandstone or weathered host rock) — sedimentary

Iron-rich weathered rock, possibly limonite-bearing sandstone or laterite

Goethite–hematite/limonite assemblage, likely in a ferruginous sandstone or weathered host rock