Rock Identifier

Category

Marble

Browse marble specimens identified by the Rock Identifier community.

Learn about Marble in the encyclopedia

Marble

Cipollino Marble

Cipollino Marble

Parian Marble

Carrara Marble

Pentelic Marble

Ruin Marble

Onyx Marble

Green Marble

Picasso Jasper

Migmatite

Crinoidal Limestone

Crinoidal Limestone

Serpentinite

Emerald in Host Rock (Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities) — mineral

Emerald in Host Rock

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Yellow Sapphire (Corundum (Al2O3)) — gemstone

Yellow Sapphire

Corundum (Al2O3)

Yellow Sapphire (Corundum (Al2O3)) — gemstone

Yellow Sapphire

Corundum (Al2O3)

Ruby (Corundum (Al2O3)) — gemstone

Ruby

Corundum (Al2O3)

Lapis Lazuli (Lapis Lazuli (Metamorphic Rock containing Lazurite, Calcite, Pyrite, and Sodalite)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Metamorphic Rock containing Lazurite, Calcite, Pyrite, and Sodalite)

Ruby (in a ring setting) (Corundum (Al2O3:Cr)) — gemstone

Ruby (in a ring setting)

Corundum (Al2O3:Cr)

Yellow Sapphire (Corundum (Al2O3)) — gemstone

Yellow Sapphire

Corundum (Al2O3)

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

Yellow Calcite

Calcite (Calcium Carbonate, CaCO3)

Lapis Lazuli (Lapis Lazuli (Rock containing Lazurite, Calcite, and Pyrite)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Rock containing Lazurite, Calcite, and Pyrite)

Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

Lapis Lazuli (Lapis Lazuli (Complex aggregate containing Lazurite (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Complex aggregate containing Lazurite (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)

Likely polished white-and-gray stone, possibly marble or quartzite (Uncertain from image; likely calcite-rich marble (CaCO₃) or quartzite (SiO₂)) — metamorphic

Likely polished white-and-gray stone, possibly marble or quartzite

Uncertain from image; likely calcite-rich marble (CaCO₃) or quartzite (SiO₂)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

White pebble, likely quartz or calcite (Indeterminate from image; possible microcrystalline quartz (SiO₂) or calcite (CaCO₃)) — mineral

White pebble, likely quartz or calcite

Indeterminate from image; possible microcrystalline quartz (SiO₂) or calcite (CaCO₃)

Likely weathered limestone (Calcite-rich carbonate rock; primarily calcium carbonate (CaCO₃)) — sedimentary

Likely weathered limestone

Calcite-rich carbonate rock; primarily calcium carbonate (CaCO₃)

Likely limestone or chalk (Calcite-rich carbonate rock; predominantly calcium carbonate (CaCO₃)) — sedimentary

Likely limestone or chalk

Calcite-rich carbonate rock; predominantly calcium carbonate (CaCO₃)

Quartz-rich metamorphic rock (likely quartzite) (Quartzite, composed predominantly of quartz (SiO₂), with minor iron-oxide and mica impurities) — metamorphic

Quartz-rich metamorphic rock (likely quartzite)

Quartzite, composed predominantly of quartz (SiO₂), with minor iron-oxide and mica impurities

Polished green calcite (often sold as “onyx marble”) (Calcite, CaCO₃; banded crystalline limestone/travertine) — mineral

Polished green calcite (often sold as “onyx marble”)

Calcite, CaCO₃; banded crystalline limestone/travertine

Banded agate (likely polished/tumbled) (Agate, a microcrystalline variety of quartz; SiO₂) — mineral

Banded agate (likely polished/tumbled)

Agate, a microcrystalline variety of quartz; SiO₂

Polished banded agate nodule (Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide inclusions) — mineral

Polished banded agate nodule

Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide inclusions

Quartzite (Quartzite (SiO2 main component)) — metamorphic

Quartzite

Quartzite (SiO2 main component)

Likely limestone (Calcite-rich carbonate rock; mainly calcium carbonate (CaCO₃)) — sedimentary

Likely limestone

Calcite-rich carbonate rock; mainly calcium carbonate (CaCO₃)

Chalky limestone (Micritic calcite limestone; predominantly CaCO₃) — sedimentary

Chalky limestone

Micritic calcite limestone; predominantly CaCO₃

Polished Picasso jasper (Silicified carbonate rock, commonly marketed as Picasso jasper; composition varies and is not a single mineral species) — metamorphic

Polished Picasso jasper

Silicified carbonate rock, commonly marketed as Picasso jasper; composition varies and is not a single mineral species

Calcite (Honey Calcite and Agate) (Calcium Carbonate (CaCO3)) — mineral

Calcite (Honey Calcite and Agate)

Calcium Carbonate (CaCO3)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Green Quartzite (Metamorphic Quartz (SiO2) with Chromium-rich inclusions (Fuchsite)) — metamorphic

Green Quartzite

Metamorphic Quartz (SiO2) with Chromium-rich inclusions (Fuchsite)

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

Orange Calcite

Calcite (Calcium Carbonate - CaCO3)

Orange Calcite (Cleavage Rhomb) (Calcite (Calcium Carbonate, CaCO3)) — mineral

Orange Calcite (Cleavage Rhomb)

Calcite (Calcium Carbonate, CaCO3)

Orange Calcite with Siderite/Iron Oxide Coating (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite with Siderite/Iron Oxide Coating

Calcium Carbonate (CaCO3)

Banded Calcite (often sold as Onyx Marble) (Calcium Carbonate (CaCO3)) — mineral

Banded Calcite (often sold as Onyx Marble)

Calcium Carbonate (CaCO3)

Polished black stone, possibly black marble or basalt (Probable fine-grained mafic rock; exact identification requires testing) — igneous

Polished black stone, possibly black marble or basalt

Probable fine-grained mafic rock; exact identification requires testing

Limestone (likely weathered or plaster-coated) (Calcite-rich carbonate rock; primarily CaCO₃) — sedimentary

Limestone (likely weathered or plaster-coated)

Calcite-rich carbonate rock; primarily CaCO₃

Fossiliferous limestone (Bioclastic carbonate rock, predominantly calcite (CaCO₃)) — sedimentary

Fossiliferous limestone

Bioclastic carbonate rock, predominantly calcite (CaCO₃)

Likely calcite-rich marble (Calcite (CaCO₃), recrystallized as marble; minor impurities may include mica or quartz) — metamorphic

Likely calcite-rich marble

Calcite (CaCO₃), recrystallized as marble; minor impurities may include mica or quartz

Tumbled pink brecciated marble or quartzite (Calcite-rich marble, likely with quartz veins; exact identification requires testing) — metamorphic

Tumbled pink brecciated marble or quartzite

Calcite-rich marble, likely with quartz veins; exact identification requires testing

Blue Spinel on Marble with Phlogopite (MgAl2O4 (Spinel) in CaCO3 (Calcite/Marble) matrix) — metamorphic

Blue Spinel on Marble with Phlogopite

MgAl2O4 (Spinel) in CaCO3 (Calcite/Marble) matrix

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

Optical Calcite

Calcite (Calcium Carbonate, CaCO3)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

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

Optical Calcite (Iceland Spar)

Calcite (Calcium Carbonate, CaCO3)