Rock Identifier

Category

Sedimentary (If Limestone) Or Metamorphic (If Marble)

Browse sedimentary (if limestone) or metamorphic (if marble) specimens identified by the Rock Identifier community.

Learn about Sedimentary (If Limestone) Or Metamorphic (If Marble) in the encyclopedia

Marble

Limestone

Cipollino Marble

Cipollino Marble

Parian Marble

Carrara Marble

Green Marble

Ruin Marble

Pentelic Marble

Onyx Marble

Crinoidal Limestone

Crinoidal Limestone

Lithographic Limestone

Fossiliferous Limestone

Fossiliferous Limestone

White quartzite pebble (Quartzite; predominantly microcrystalline quartz (SiO₂)) — metamorphic

White quartzite pebble

Quartzite; predominantly microcrystalline quartz (SiO₂)

Quartzite Pebbles (Quartzite (SiO2 silicon dioxide dominant)) — metamorphic

Quartzite Pebbles

Quartzite (SiO2 silicon dioxide dominant)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Pink Quartzite (Quartzite (SiO2)) — metamorphic

Pink Quartzite

Quartzite (SiO2)

Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Mixed Tumbled Stones Collection (Mixed Silicates and Carbonates (Quartz, Amorphous Silica, Carbonates)) — multiple

Mixed Tumbled Stones Collection

Mixed Silicates and Carbonates (Quartz, Amorphous Silica, Carbonates)

Tumbled honey-yellow calcite (Calcite (CaCO₃)) — mineral

Tumbled honey-yellow calcite

Calcite (CaCO₃)

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

Blue Calcite (Calcite (CaCO3)) — mineral

Blue Calcite

Calcite (CaCO3)

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

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

Apatite

Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))

Chert (specifically Jasper/Brown Chert) (Silicon Dioxide (SiO2)) — sedimentary

Chert (specifically Jasper/Brown Chert)

Silicon Dioxide (SiO2)

Honey calcite (yellow calcite) (Calcite, CaCO₃) — mineral

Honey calcite (yellow calcite)

Calcite, CaCO₃

Quartzite (or Milky Quartz pebble) (Quartzite (primarily Silicon Dioxide, SiO2)) — metamorphic

Quartzite (or Milky Quartz pebble)

Quartzite (primarily Silicon Dioxide, SiO2)

Yellow calcite (Calcite (CaCO₃)) — mineral

Yellow calcite

Calcite (CaCO₃)

Calcite crystal specimen (Calcite — calcium carbonate, CaCO₃) — mineral

Calcite crystal specimen

Calcite — calcium carbonate, CaCO₃

Red Quartzite (Quartzite (SiO2)) — metamorphic

Red Quartzite

Quartzite (SiO2)

Tumbled cream-colored stone, likely calcite (Likely calcite (CaCO₃); visual identification is uncertain) — mineral

Tumbled cream-colored stone, likely calcite

Likely calcite (CaCO₃); visual identification is uncertain

Polished pink-and-white quartzite (likely rose-quartz-bearing quartzite) (Quartzite, predominantly SiO₂ (quartz), with iron-oxide staining and possible feldspar/mica impurities) — metamorphic

Polished pink-and-white quartzite (likely rose-quartz-bearing quartzite)

Quartzite, predominantly SiO₂ (quartz), with iron-oxide staining and possible feldspar/mica impurities

Quartzite (Pink/Red variety) (Quartzite (SiO2 with iron oxide impurities)) — metamorphic

Quartzite (Pink/Red variety)

Quartzite (SiO2 with iron oxide impurities)

Yellow Quartzite (Tumbled) (Quartzite (SiO2)) — metamorphic

Yellow Quartzite (Tumbled)

Quartzite (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Sphalerite (Zinc Sulfide (ZnS)) — mineral

Sphalerite

Zinc Sulfide (ZnS)

Lapis Lazuli (Lazurite-rich metamorphic rock (approx. (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)) — metamorphic

Lapis Lazuli

Lazurite-rich metamorphic rock (approx. (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Calcite (Calcite (CaCO₃, Calcium Carbonate)) — Mineral

Calcite

Calcite (CaCO₃, Calcium Carbonate)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Corundum (Aluminium oxide (Al2O3)) — mineral

Corundum

Aluminium oxide (Al2O3)

Tumbled pale green mineral specimen, likely calcite (Calcite (CaCO₃), tentative identification) — mineral

Tumbled pale green mineral specimen, likely calcite

Calcite (CaCO₃), tentative identification

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Iron-stained) (Quartzite (mostly SiO2 with Fe2O3 impurities)) — metamorphic

Quartzite (Iron-stained)

Quartzite (mostly SiO2 with Fe2O3 impurities)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

Lapis Lazuli (Lapis Lazuli (A metamorphic rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, along with Calcite and Pyrite)) — metamorphic

Lapis Lazuli

Lapis Lazuli (A metamorphic rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, along with Calcite and Pyrite)

Banded Calcite (Onyx Marble / Travertine) (Calcite (Calcium Carbonate, CaCO3)) — sedimentary

Banded Calcite (Onyx Marble / Travertine)

Calcite (Calcium Carbonate, CaCO3)

Calcite (Calcite (CaCO₃)) — Mineral

Calcite

Calcite (CaCO₃)

Weathered quartzite cobble (Quartzite, predominantly crystalline SiO₂) — metamorphic

Weathered quartzite cobble

Quartzite, predominantly crystalline SiO₂

Chert (often called Flint or Jasper) (Chert (Microcrystalline or Cryptocrystalline Silica, SiO2)) — sedimentary

Chert (often called Flint or Jasper)

Chert (Microcrystalline or Cryptocrystalline Silica, SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Graphite (Graphite (Carbon, C)) — metamorphic

Graphite

Graphite (Carbon, C)