Rock Identifier

Category

Sedimentary Or Metamorphic

Browse sedimentary or metamorphic specimens identified by the Rock Identifier community.

Learn about Sedimentary Or Metamorphic in the encyclopedia

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Metabasalt

Eulysite

Breccia

Ironstone

Anthracite

Metaquartzite

Slate

Marble

Hornfels

Metarhyolite

River Pebble (likely Quartzite or Chert) (Silicon Dioxide (SiO2) crystal conglomerate) — sedimentary or metamorphic

River Pebble (likely Quartzite or Chert)

Silicon Dioxide (SiO2) crystal conglomerate

sedimentary or metamorphic

Unidentified River Rock or Mudstone (N/A (Generic rock fragment)) — Sedimentary or Metamorphic

Unidentified River Rock or Mudstone

N/A (Generic rock fragment)

Sedimentary or Metamorphic

Pyrite-bearing rock (likely pyrite in a quartz or sulfide-rich matrix) (Pyrite, FeS₂; the gray host may be quartz, carbonate, or another sulfide-bearing rock) — mineral

Pyrite-bearing rock (likely pyrite in a quartz or sulfide-rich matrix)

Pyrite, FeS₂; the gray host may be quartz, carbonate, or another sulfide-bearing rock

Rhodonite (Rhodonite, manganese inosilicate — MnSiO₃; the specimen may include quartz, feldspar, and black manganese-oxide minerals in the matrix) — mineral

Rhodonite

Rhodonite, manganese inosilicate — MnSiO₃; the specimen may include quartz, feldspar, and black manganese-oxide minerals in the matrix

Quartz (likely) / Siliceous rock with quartz phenocrysts (if a rock fragment) (Quartz (SiO₂)) — Mineral

Quartz (likely) / Siliceous rock with quartz phenocrysts (if a rock fragment)

Quartz (SiO₂)

Quartz with Iron Stains (Quartz (SiO2) with iron oxide/hydroxide staining) — Mineral

Quartz with Iron Stains

Quartz (SiO2) with iron oxide/hydroxide staining

Mixed Rock Collection (Pebbles and Stones) (Various geological specimens) — igneous, sedimentary, and metamorphic

Mixed Rock Collection (Pebbles and Stones)

Various geological specimens

igneous, sedimentary, and metamorphic

Chalcedony (Banded/Mottled Variety) (Chalcedony (a cryptocrystalline variety of Quartz, SiO2)) — Mineral

Chalcedony (Banded/Mottled Variety)

Chalcedony (a cryptocrystalline variety of Quartz, SiO2)

Drill Core Samples (Varied Lithology) (Multi-lithological core samples (containing potential granite, marble, and phyllite/schist sequence)) — igneous, sedimentary, and metamorphic

Drill Core Samples (Varied Lithology)

Multi-lithological core samples (containing potential granite, marble, and phyllite/schist sequence)

igneous, sedimentary, and metamorphic

Mixed collection of minerals and rocks (Jasper, Carnelian, Granite, and Quartz) (Silicon Dioxide (SiO2) with varying impurities for silicates and igneous aggregates) — igneous, sedimentary, and metamorphic

Mixed collection of minerals and rocks (Jasper, Carnelian, Granite, and Quartz)

Silicon Dioxide (SiO2) with varying impurities for silicates and igneous aggregates

igneous, sedimentary, and metamorphic

Mixed Tumbled Stones (Mostly Agate, Jasper, and Quartz) (Silicon Dioxide (SiO2)) — sedimentary and metamorphic minerals

Mixed Tumbled Stones (Mostly Agate, Jasper, and Quartz)

Silicon Dioxide (SiO2)

sedimentary and metamorphic minerals

Mixed Rock and Mineral Collection (Various geological specimens) — igneous, sedimentary, and metamorphic

Mixed Rock and Mineral Collection

Various geological specimens

igneous, sedimentary, and metamorphic

Earth (Terra / Earth) — igneous, sedimentary, and metamorphic

Earth

Terra / Earth

igneous, sedimentary, and metamorphic

Engineer Quartz/Quartzite (SiO2 (Silicon Dioxide with binders)) — Sedimentary or metamorphic-derived

Engineer Quartz/Quartzite

SiO2 (Silicon Dioxide with binders)

Sedimentary or metamorphic-derived

Shale or Argillite (Shale (fine-grained clastic sedimentary rock) or Argillite (low-grade metamorphic rock derived from shale)) — Sedimentary or Metamorphic (low grade)

Shale or Argillite

Shale (fine-grained clastic sedimentary rock) or Argillite (low-grade metamorphic rock derived from shale)

Sedimentary or Metamorphic (low grade)

Painted River Rock (Polished fluvial clast with acrylic/synthetic pigment coating) — Sedimentary or Metamorphic (base substrate)

Painted River Rock

Polished fluvial clast with acrylic/synthetic pigment coating

Sedimentary or Metamorphic (base substrate)

Mixed Gravel and Pebbles (Polylithic Alluvial Aggregate) — igneous, sedimentary, and metamorphic mix

Mixed Gravel and Pebbles

Polylithic Alluvial Aggregate

igneous, sedimentary, and metamorphic mix

Crushed Stone / Gravel (Multiple Rock Types) (Lithic fragments (undifferentiated)) — Igneous, Sedimentary, and Metamorphic mix

Crushed Stone / Gravel (Multiple Rock Types)

Lithic fragments (undifferentiated)

Igneous, Sedimentary, and Metamorphic mix

Quartz / Quartzite Fragment (Silicon Dioxide (SiO2)) — igneous, sedimentary, or metamorphic (mineral-based)

Quartz / Quartzite Fragment

Silicon Dioxide (SiO2)

igneous, sedimentary, or metamorphic (mineral-based)

Green Slag Glass (Cullet) (Amorphous Silica (Industrial Glass Byproduct)) — Synthetic/Byproduct (Non-igneous, non-sedimentary, non-metamorphic)

Green Slag Glass (Cullet)

Amorphous Silica (Industrial Glass Byproduct)

Synthetic/Byproduct (Non-igneous, non-sedimentary, non-metamorphic)

Red Swirl Beads (Likely Resin or Glass, simulating Red Jasper or Agate) (N/A (for the beads as pictured); Red Jasper: SiO2 (Chert variety); Red Agate: SiO2 (Chalcedony variety)) — Organic (if resin) or Synthetic (if glass); simulating Sedimentary or Metamorphic (for natural stones)

Red Swirl Beads (Likely Resin or Glass, simulating Red Jasper or Agate)

N/A (for the beads as pictured); Red Jasper: SiO2 (Chert variety); Red Agate: SiO2 (Chalcedony variety)

Organic (if resin) or Synthetic (if glass); simulating Sedimentary or Metamorphic (for natural stones)

Pyrite-bearing metamorphic rock (likely schist or quartzite) (Mica/quartz-rich metamorphic matrix with pyrite (FeS₂), possibly chalcopyrite (CuFeS₂)) — metamorphic

Pyrite-bearing metamorphic rock (likely schist or quartzite)

Mica/quartz-rich metamorphic matrix with pyrite (FeS₂), possibly chalcopyrite (CuFeS₂)

Mixed polished river stones (Likely quartz, quartzite, chert/jasper, and possibly limestone or marble) — mineral

Mixed polished river stones

Likely quartz, quartzite, chert/jasper, and possibly limestone or marble

Mixed Rock and Mineral Collection (Mixed Assemblage (includes Quartz, Jasper, Feldspar, and Turquoise-colored stones)) — mineral

Mixed Rock and Mineral Collection

Mixed Assemblage (includes Quartz, Jasper, Feldspar, and Turquoise-colored stones)

Blue Apatite (Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)

Apatite (Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))) — mineral

Apatite

Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))

Magnetite (Lodestone variety) (Magnetite (Fe3O4)) — mineral

Magnetite (Lodestone variety)

Magnetite (Fe3O4)

Small quartz-rich mineral fragment (Quartz (SiO₂), possibly milky or chalcedonic quartz) — mineral

Small quartz-rich mineral fragment

Quartz (SiO₂), possibly milky or chalcedonic quartz

Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

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

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Pink Quartz (Silicon Dioxide (Quartz), SiO2) — mineral

Pink Quartz

Silicon Dioxide (Quartz), SiO2

Mica (Mica group (often Muscovite or Biotite)) — mineral

Mica

Mica group (often Muscovite or Biotite)

Clear Quartz (SiO2 (Silicon Dioxide)) — gemstone

Clear Quartz

SiO2 (Silicon Dioxide)

Banded gneiss (likely garnet-biotite or quartz-feldspar gneiss) (Gneiss; predominantly quartz (SiO₂), feldspar, and dark biotite/amphibole) — metamorphic

Banded gneiss (likely garnet-biotite or quartz-feldspar gneiss)

Gneiss; predominantly quartz (SiO₂), feldspar, and dark biotite/amphibole

Blue Apatite (Apatite (Group), Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Apatite (Group), Ca5(PO4)3(F,Cl,OH)

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Kyanite (Kyanite (Al2SiO5)) — mineral

Kyanite

Kyanite (Al2SiO5)

Blue Apatite (Calcium Fluorophosphate - Ca5(PO4)3F) — mineral

Blue Apatite

Calcium Fluorophosphate - Ca5(PO4)3F

Magnetite (Iron Ore) (Magnetite (Fe3O4)) — mineral

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Apatite (Calcium phosphate fluoride/chloride, Ca5(PO4)3(F,Cl,OH)) — mineral

Apatite

Calcium phosphate fluoride/chloride, Ca5(PO4)3(F,Cl,OH)

Apatite (Calcium phosphate fluoride/chloride, Ca5(PO4)3(F,Cl,OH)) — mineral

Apatite

Calcium phosphate fluoride/chloride, Ca5(PO4)3(F,Cl,OH)