Slickenside in Limestone
Tectonized Limestone / Calcite (CaCO3)
metamorphic (localized) or sedimentary
Category
Metamorphic (Localized) Or Sedimentary
Browse metamorphic (localized) or sedimentary specimens identified by the Rock Identifier community.
Learn about Metamorphic (Localized) Or Sedimentary in the encyclopedia
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Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Concretion
Sedimentary Concretion
sedimentary
Garnet (Almandine)
Almandine Garnet (Fe3Al2(SiO4)3)
Mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Green Jasper (Chert)
Microcrystalline Quartz (SiO2) with iron/clay inclusion
sedimentary
Purple Conglomerate
Polymictic Conglomerate
sedimentary
Quartz with Iron Oxide Stain
Silicon Dioxide (SiO2) with Hematite/Limonite coatings
mineral
Sandstone with Fossil Leaf Impression
Sedimentary rock (Sandstone/Siltstone matrix) with Carbonaceous film fossil
fossil
Schist
Mica Schist (primarily Muscovite or Biotite sheet silicates)
metamorphic
Leopardite
Quartz porphyry / Quartz monzonite with manganese oxide spots
igneous
Mookaite Jasper
Radiolarite (SiO2)
sedimentary
Greenschist (Chlorite Schist)
Greenschist (containing Chlorite, Actinolite, and Epidote)
metamorphic
Sandstone with Iron Oxide Concretion
Arenite with Hematite/Goethite Concretion
sedimentary
Ironstone (Limonitic/Hematitic Sandstone)
Ferruginous sandstone (predominantly Fe2O3 and FeO(OH))
sedimentary
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
metamorphic
Orange Sapphire
Corundum (Al2O3 with trace elements)
gemstone
Greenschist
Greenschist facies rock (containing chlorite, actinolite, and epidote)
metamorphic
Chert (Field-collected variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Stichtite in Serpentine (Atlantasite)
Mg6Cr2CO3(OH)16·4H2O in Mg3Si2O5(OH)4
metamorphic
Bumble Bee Jasper
Calcite and Volcanic Ash Mixture
sedimentary
Leopard Skin Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Banded Calcite (often marketed as Mexican Onyx or Onyx Marble)
Calcite (Calcium Carbonate, CaCO3)
sedimentary
Lapis Lazuli (Low Grade)
Lapis Lazuli (Metamorphic rock containing lazurite, calcite, and pyrite)
metamorphic
Pitted Limestone
Calcium Carbonate (CaCO3)
sedimentary
Mookaite Jasper
Silicified Radiolarite (SiO2)
sedimentary
Serpentinite (with Pyrite/Garnet inclusions)
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3Si2O5(OH)4
metamorphic
Chert (Flint) with Patina
Microcrystalline Quartz (SiO2)
sedimentary
Quartzite Cobble
Quartzite (SiO2)
metamorphic
Sandstone Pebble with Iron Staining
Clastic Sedimentary Rock (primarily Quartz with Fe2O3 oxides)
sedimentary
Hag Stone
Sandstone or Limestone with Solution Holes (Bioturbation/Erosion)
sedimentary
Limonite (Ironstone Concretion)
Limonite (Hydrated iron(III) oxide-hydroxide, mixtures of FeO(OH)·nH2O)
sedimentary
Pink Tumbled Quartz (Dyed)
Silicon Dioxide (SiO2)
mineral
Pitted Sedimentary Rock / Cupstone
Sedimentary rock with weathering pit (arenite / sandstone)
sedimentary
Leopard Skin Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Chert (concretionary/nodular variant)
Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions
sedimentary
Chert (specifically Tan Chert)
Chert (SiO2)
sedimentary
Chert (often called Flint when found in chalk/limestone)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Leopard Skin Jasper
Silicon Dioxide (SiO2) with iron and manganese inclusions
sedimentary
Hag Stone
Perforated Calcarenite or Chert
sedimentary
Banded Agate
Silicon dioxide (SiO2) - variety of Chalcedony
sedimentary