Rock Identifier

Category

Sedimentary (Chemically Precipitated) Or Metamorphic

Browse sedimentary (chemically precipitated) or metamorphic specimens identified by the Rock Identifier community.

Learn about Sedimentary (Chemically Precipitated) Or Metamorphic in the encyclopedia

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Metabasalt

Eulysite

Breccia

Ironstone

Anthracite

Metaquartzite

Slate

Marble

Hornfels

Metarhyolite

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Quartz-veined Sedimentary Rock (Sedimentary rock with hydrothermal quartz veins) — sedimentary

Quartz-veined Sedimentary Rock

Sedimentary rock with hydrothermal quartz veins

Chalky Limestone (Carbonate sedimentary rock (CaCO3)) — sedimentary

Chalky Limestone

Carbonate sedimentary rock (CaCO3)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Milky Quartz Vein in Host Rock (Silicon Dioxide (SiO2)) — mineral

Milky Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Magnetite with Pyrite or Chalcopyrite inclusions (Magnetite (Fe3O4) with Pyrite (FeS2)) — mineral

Magnetite with Pyrite or Chalcopyrite inclusions

Magnetite (Fe3O4) with Pyrite (FeS2)

Amethyst (Quartz) (Silicon Dioxide (SiO2) with Iron impurities) — mineral

Amethyst (Quartz)

Silicon Dioxide (SiO2) with Iron impurities

Arkosic Sandstone (Arkose) — sedimentary

Arkosic Sandstone

Arkose

Quartzite (River Pebble) (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite (River Pebble)

Metamorphic Quartzite (SiO2)

Gossan (Iron-rich regolith (mainly Limonite and Goethite, FeO(OH)·nH2O)) — sedimentary

Gossan

Iron-rich regolith (mainly Limonite and Goethite, FeO(OH)·nH2O)

Chert (Flint nodule) (Chert (SiO2)) — sedimentary

Chert (Flint nodule)

Chert (SiO2)

Chert Pebble (Jasper/Quartz variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Pebble (Jasper/Quartz variety)

Microcrystalline Quartz (SiO2)

Chert / Flint Nodule (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert / Flint Nodule

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (Smooth River Pebble) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Smooth River Pebble)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Nodule) (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert (Nodule)

Chert (Microcrystalline Quartz, SiO2)

Green Quartzite (Metamorphic Quartz Sandstone (SiO2)) — metamorphic

Green Quartzite

Metamorphic Quartz Sandstone (SiO2)

Quartzite (Metamorphic Quartz Rock (SiO2)) — metamorphic

Quartzite

Metamorphic Quartz Rock (SiO2)

Porphyritic Basalt (Chinese Flower Stone / Chrysanthemum Stone basalt variety) (Porphyritic Basalt containing Plagioclase Feldspar phenocrysts) — igneous

Porphyritic Basalt (Chinese Flower Stone / Chrysanthemum Stone basalt variety)

Porphyritic Basalt containing Plagioclase Feldspar phenocrysts

Quartzite (Metamorphic Quartz Sandstone) — metamorphic

Quartzite

Metamorphic Quartz Sandstone

Quartzite with Iron Staining (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite with Iron Staining

Metamorphic Quartzite (SiO2)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Quartz (Quartz (SiO₂)) — mineral

Quartz

Quartz (SiO₂)

Quartz-veined Sandstone (Quartzite-veined Arenite / SiO2 and quartz sand) — sedimentary

Quartz-veined Sandstone

Quartzite-veined Arenite / SiO2 and quartz sand

Ferruginous Quartz (Iron-stained Quartz) (Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions) — mineral

Ferruginous Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

White Buffalo Turquoise (or White Buffalo Stone/Howlite/Magnesite) (Calcite/Dolomite with Chert/Flint (Often mislabeled as Turquoise, true White Buffalo is a mix of chalcedony and calcite/dolomite)) — gemstone

White Buffalo Turquoise (or White Buffalo Stone/Howlite/Magnesite)

Calcite/Dolomite with Chert/Flint (Often mislabeled as Turquoise, true White Buffalo is a mix of chalcedony and calcite/dolomite)

Quartzite (Metamorphic Quartzite) — metamorphic

Quartzite

Metamorphic Quartzite

Red Jasper (Microcrystalline quartz (SiO2) with iron oxide impurities) — sedimentary

Red Jasper

Microcrystalline quartz (SiO2) with iron oxide impurities

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Jasper (Microcrystalline quartz (SiO2)) — sedimentary

Jasper

Microcrystalline quartz (SiO2)

Chalcedony (Agate / Jasper Specimen) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate / Jasper Specimen)

Silicon Dioxide (SiO2)

Milky Quartz Nodule / Geode precursor (Silicon Dioxide (SiO2)) — mineral

Milky Quartz Nodule / Geode precursor

Silicon Dioxide (SiO2)

Opal (in Jewelry Setting) (Hydrated Silicon Dioxide (SiO2·nH2O)) — gemstone

Opal (in Jewelry Setting)

Hydrated Silicon Dioxide (SiO2·nH2O)

Red Jasper (Silicon dioxide (microcrystalline quartz), SiO2) — sedimentary

Red Jasper

Silicon dioxide (microcrystalline quartz), SiO2

Moqui Marble (Hematite-Goethite Concretion) — sedimentary

Moqui Marble

Hematite-Goethite Concretion

Jasper (Silicon Dioxide (Microcrystalline Quartz, $SiO_2$)) — sedimentary

Jasper

Silicon Dioxide (Microcrystalline Quartz, $SiO_2$)

Chalcedony Nodule / Agate (Silicon Dioxide (SiO2)) — sedimentary

Chalcedony Nodule / Agate

Silicon Dioxide (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Jasper (Silicon Dioxide (Microcrystalline Quartz, SiO2)) — sedimentary

Jasper

Silicon Dioxide (Microcrystalline Quartz, SiO2)

Jasper (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Jasper

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Quartz Geode (Crystalline Silicon Dioxide (SiO2) in sedimentary matrix) — sedimentary

Quartz Geode

Crystalline Silicon Dioxide (SiO2) in sedimentary matrix

Red Jasper (Silicon Dioxide (SiO2) with Hematite impurities) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities