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

Raw Calcite (Calcite (Calcium Carbonate - CaCO3)) — mineral

Raw Calcite

Calcite (Calcium Carbonate - CaCO3)

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

Onyx Marble (Banded Calcite)

Calcite (Calcium Carbonate, CaCO3)

Educational Geologic Collection (Mixed Mineral and Rock Collection (Various compositions)) — mineral

Educational Geologic Collection

Mixed Mineral and Rock Collection (Various compositions)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Travertine (likely polished limestone) (Calcite-rich carbonate rock; predominantly CaCO₃) — sedimentary

Travertine (likely polished limestone)

Calcite-rich carbonate rock; predominantly CaCO₃

Ruby (Corundum (Al2O3 with Chromium traces)) — mineral

Ruby

Corundum (Al2O3 with Chromium traces)

Optical Calcite (Iceland Spar) (Calcium Carbonate (CaCO3)) — mineral

Optical Calcite (Iceland Spar)

Calcium Carbonate (CaCO3)

Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

Grey Quartzite Pebble (Quartzite (primarily SiO2 - Silicon Dioxide)) — metamorphic

Grey Quartzite Pebble

Quartzite (primarily SiO2 - Silicon Dioxide)

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

Rounded pale pebble, likely limestone (Calcite-rich limestone (CaCO₃), identification tentative from appearance) — sedimentary

Rounded pale pebble, likely limestone

Calcite-rich limestone (CaCO₃), identification tentative from appearance

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

Lapis Lazuli

Lapis Lazuli (A complex rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

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

Lapis Lazuli (Low Grade)

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

Lapis Lazuli (Na6Ca2(Al6Si6O24)(SO4,S,Cl,OH)2 (Lazurite-dominated rock)) — metamorphic

Lapis Lazuli

Na6Ca2(Al6Si6O24)(SO4,S,Cl,OH)2 (Lazurite-dominated rock)

Honey Calcite (Calcite (Calcium Carbonate - CaCO3)) — mineral

Honey Calcite

Calcite (Calcium Carbonate - CaCO3)

Quartzite with Quartz Veining (Quartzite (primarily SiO2)) — metamorphic

Quartzite with Quartz Veining

Quartzite (primarily SiO2)

Orange Calcite (Iron-Stained) (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite (Iron-Stained)

Calcium Carbonate (CaCO3)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Orange Calcite (Banded Calcite) (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite (Banded Calcite)

Calcium Carbonate (CaCO3)

Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

Lapis Lazuli (Lapis Lazuli (Complex rock containing Sodalite, Lazurite, Calcite, and Pyrite)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Complex rock containing Sodalite, Lazurite, Calcite, and Pyrite)

Lapis Lazuli (Tumbled Stone) (Na6Ca2(Al6Si6O24)(SO4,S,Cl)2 (predominantly Lazurite)) — metamorphic

Lapis Lazuli (Tumbled Stone)

Na6Ca2(Al6Si6O24)(SO4,S,Cl)2 (predominantly Lazurite)

Lapis Lazuli (Complex mixture containing Lazurite ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2), Calcite, and Pyrite) — metamorphic

Lapis Lazuli

Complex mixture containing Lazurite ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2), Calcite, and Pyrite

Lapis Lazuli (Lapis Lazuli (Complex aggregate mainly of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Complex aggregate mainly of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Lapis Lazuli (Lazurite cluster (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2) — metamorphic

Lapis Lazuli

Lazurite cluster (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2

Banded Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Banded Calcite

Calcite (Calcium Carbonate, CaCO3)

Calcite (Yellow/Orange variety - sometimes called Honey Calcite) (Calcite) — Mineral

Calcite (Yellow/Orange variety - sometimes called Honey Calcite)

Calcite

Rounded limestone pebble (Micritic limestone, primarily calcite (CaCO₃)) — sedimentary

Rounded limestone pebble

Micritic limestone, primarily calcite (CaCO₃)

Quartzite (River Stone) (Quartzite) — metamorphic

Quartzite (River Stone)

Quartzite

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

Columnar Calcite / Satin Spar (Calcite (Calcium Carbonate, CaCO3)) — mineral

Columnar Calcite / Satin Spar

Calcite (Calcium Carbonate, CaCO3)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Lapis lazuli (Lazurite-bearing calcite marble; typically lazurite (Na₃CaSi₃Al₃O₁₂S), calcite, pyrite) — metamorphic

Lapis lazuli

Lazurite-bearing calcite marble; typically lazurite (Na₃CaSi₃Al₃O₁₂S), calcite, pyrite

Calcite-rich limestone, possibly fossiliferous (Limestone composed mainly of calcite (CaCO₃), potentially containing a fragmentary fossil or calcite-filled structure) — sedimentary

Calcite-rich limestone, possibly fossiliferous

Limestone composed mainly of calcite (CaCO₃), potentially containing a fragmentary fossil or calcite-filled structure

Tumbled yellow-orange calcite (Calcite (CaCO₃), likely honey or orange calcite) — mineral

Tumbled yellow-orange calcite

Calcite (CaCO₃), likely honey or orange calcite

Banded Onyx (Calcite Marble) (Calcite (CaCO3) - Trap-rock or Cave Onyx) — sedimentary

Banded Onyx (Calcite Marble)

Calcite (CaCO3) - Trap-rock or Cave Onyx

Calcite (Calcite (CaCO3)) — mineral

Calcite

Calcite (CaCO3)

Quartz Geode (partially formed) (Silicon Dioxide (SiO2)) — mineral

Quartz Geode (partially formed)

Silicon Dioxide (SiO2)

Likely calcite or quartz fragment (Uncertain from image; calcite (CaCO₃) is the leading possibility, with quartz (SiO₂) another possibility) — mineral

Likely calcite or quartz fragment

Uncertain from image; calcite (CaCO₃) is the leading possibility, with quartz (SiO₂) another possibility