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

Quartzite (Quartzite (SiO2-dominant rock)) — metamorphic

Quartzite

Quartzite (SiO2-dominant rock)

Quartzite Pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble

Quartzite (primarily SiO2)

Quartzite with inclusions (Quartzite (SiO2)) — metamorphic

Quartzite with inclusions

Quartzite (SiO2)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Orange Calcite (Dogtooth/Cluster) (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite (Dogtooth/Cluster)

Calcium Carbonate (CaCO3)

Amethyst and Limestone (Amethyst (SiO2 - Silicon Dioxide) and Limestone (CaCO3 - Calcium Carbonate)) — The purple specimen is a mineral (Amethyst); the white specimen is a sedimentary rock (Limestone or Marble).

Amethyst and Limestone

Amethyst (SiO2 - Silicon Dioxide) and Limestone (CaCO3 - Calcium Carbonate)

The purple specimen is a mineral (Amethyst); the white specimen is a sedimentary rock (Limestone or Marble).

River Quartz Pitting / Quartzite Pebble (Quartzite (primarily SiO2)) — metamorphic

River Quartz Pitting / Quartzite Pebble

Quartzite (primarily SiO2)

Yellow Quartzite (Quartzite (primarily SiO2)) — metamorphic

Yellow Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (primarily Silicon Dioxide, SiO2)) — metamorphic

Quartzite

Quartzite (primarily Silicon Dioxide, SiO2)

Gray Quartzite River Rock (Meta-quartzite (SiO2)) — metamorphic

Gray Quartzite River Rock

Meta-quartzite (SiO2)

Tiger Carving (Banded Onyx or Calcite) (Banded Calcite (CaCO3)) — sedimentary

Tiger Carving (Banded Onyx or Calcite)

Banded Calcite (CaCO3)

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

Ruby

Corundum (Al2O3 with Chromium traces)

Quartzite (Metamorphosed Quartz Sandstone) — metamorphic

Quartzite

Metamorphosed Quartz Sandstone

Graphite (Graphite (Native Carbon, C)) — metamorphic

Graphite

Graphite (Native Carbon, C)

Ruby (Cabochon) (Corundum (Al2O3)) — gemstone

Ruby (Cabochon)

Corundum (Al2O3)

Quartzite (Quartzite (Primary mineral: Silicon Dioxide, SiO2)) — metamorphic

Quartzite

Quartzite (Primary mineral: Silicon Dioxide, SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (Mainly SiO2)) — metamorphic

Quartzite

Quartzite (Mainly SiO2)

Banded gneiss (Gneiss, typically quartz–feldspar–mica assemblage) — metamorphic

Banded gneiss

Gneiss, typically quartz–feldspar–mica assemblage

Galena (Lead Sulfide (PbS)) — mineral

Galena

Lead Sulfide (PbS)

Graphite (Graphite (Native Carbon, C)) — Mineral

Graphite

Graphite (Native Carbon, C)

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

Banded gneiss pebble (Gneiss, typically quartz–feldspar–mica bearing) — metamorphic

Banded gneiss pebble

Gneiss, typically quartz–feldspar–mica bearing

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Fossiliferous limestone (likely orthoceras or crinoid-bearing limestone) (Bioclastic carbonate rock; commonly calcite (CaCO₃) with fossil fragments) — fossil

Fossiliferous limestone (likely orthoceras or crinoid-bearing limestone)

Bioclastic carbonate rock; commonly calcite (CaCO₃) with fossil fragments

Lapis Lazuli (Lapis Lazuli (a rock composed primarily of Lazurite (Na,Ca)₈[(S,Cl,SO₄,OH)₂|(Al₆Si₆O₂₄)], with varying amounts of Calcite, Pyrite, and Sodalite.)) — Mineral

Lapis Lazuli

Lapis Lazuli (a rock composed primarily of Lazurite (Na,Ca)₈[(S,Cl,SO₄,OH)₂|(Al₆Si₆O₂₄)], with varying amounts of Calcite, Pyrite, and Sodalite.)

Orange Quartzite / River Pebble (Quartzite (primarily SiO2)) — metamorphic

Orange Quartzite / River Pebble

Quartzite (primarily SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Banded gneiss pebble (Gneiss, commonly quartz–feldspar–mica gneiss) — metamorphic

Banded gneiss pebble

Gneiss, commonly quartz–feldspar–mica gneiss

Quartzite (River Pebble) (Metamorphosed Sandstone (SiO2)) — metamorphic

Quartzite (River Pebble)

Metamorphosed Sandstone (SiO2)

Granitic Gneiss (Gneiss (Complex silicate composition)) — metamorphic

Granitic Gneiss

Gneiss (Complex silicate composition)

Rounded gray limestone pebble with a calcite vein (Calcitic limestone, composed predominantly of calcite (CaCO₃), locally cut by a white calcite vein) — sedimentary

Rounded gray limestone pebble with a calcite vein

Calcitic limestone, composed predominantly of calcite (CaCO₃), locally cut by a white calcite vein

Quartzite (Metamorphic rock predominantly composed of Quartz (SiO2)) — metamorphic

Quartzite

Metamorphic rock predominantly composed of Quartz (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Yellow/Orange variety) (Quartzite (primarily SiO2)) — metamorphic

Quartzite (Yellow/Orange variety)

Quartzite (primarily SiO2)

Honey calcite (orange/yellow calcite) (Calcite — calcium carbonate, CaCO₃) — mineral

Honey calcite (orange/yellow calcite)

Calcite — calcium carbonate, CaCO₃

Banded Calcite (Mexican Onyx) (Calcium Carbonate (CaCO3)) — mineral

Banded Calcite (Mexican Onyx)

Calcium Carbonate (CaCO3)

Gneiss (Metamorphic Cobble) (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Gneiss (Metamorphic Cobble)

Gneiss (High-grade Regional Metamorphic Rock)