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

Tumbled yellow calcite (Calcite (calcium carbonate, CaCO₃)) — mineral

Tumbled yellow calcite

Calcite (calcium carbonate, CaCO₃)

Sodalite in Feldspar Matrix (Sodalite (Na8(Al6Si6O24)Cl2)) — mineral

Sodalite in Feldspar Matrix

Sodalite (Na8(Al6Si6O24)Cl2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Polished malachite (Malachite, Cu₂CO₃(OH)₂) — mineral

Polished malachite

Malachite, Cu₂CO₃(OH)₂

Epidote (Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — metamorphic

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Green Aventurine (SiO2 (Quartz with Fuchsite inclusions)) — mineral

Green Aventurine

SiO2 (Quartz with Fuchsite inclusions)

Corundum (Sapphire/Ruby in Matrix) (Aluminium oxide (Al2O3)) — mineral

Corundum (Sapphire/Ruby in Matrix)

Aluminium oxide (Al2O3)

Polished banded gneiss (Biotite–quartz–feldspar gneiss, locally migmatitic) — metamorphic

Polished banded gneiss

Biotite–quartz–feldspar gneiss, locally migmatitic

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

Ruby (Corundum)

Aluminum oxide (Al2O3) with Chromium traces

Serpentine (Serpentine-group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4) — metamorphic

Serpentine

Serpentine-group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Quartzite (Quartzite (mostly SiO2)) — metamorphic

Quartzite

Quartzite (mostly SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

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)

Yellow Sapphire (Corundum (Al2O3)) — gemstone

Yellow Sapphire

Corundum (Al2O3)

Ruby (Corundum (Aluminum Oxide, Al2O3)) — gemstone

Ruby

Corundum (Aluminum Oxide, Al2O3)

Black Sapphire (Corundum (Al2O3)) — gemstone

Black Sapphire

Corundum (Al2O3)

White Jade (Nephrite or Jadeite) (Tremolite-Actinolite / Sodium Aluminum Silicate (NaAlSi2O6)) — metamorphic

White Jade (Nephrite or Jadeite)

Tremolite-Actinolite / Sodium Aluminum Silicate (NaAlSi2O6)

Ruby (faceted) (Corundum (Al2O3 with chromium traces)) — gemstone

Ruby (faceted)

Corundum (Al2O3 with chromium traces)

Tourmaline (Mixed colors) (Boron silicate mineral (Na,Ca)(Li,Mg,Al,Fe,Mn,Ti,V,Cr)3Al6(BO3)3Si6O18(OH,F)4) — mineral

Tourmaline (Mixed colors)

Boron silicate mineral (Na,Ca)(Li,Mg,Al,Fe,Mn,Ti,V,Cr)3Al6(BO3)3Si6O18(OH,F)4

Tourmaline (Multi-colored) (Complex Borosilicate (Na,Ca)(Li,Mg,Al,Fe)3Al6(BO3)3Si6O18(OH)4) — mineral

Tourmaline (Multi-colored)

Complex Borosilicate (Na,Ca)(Li,Mg,Al,Fe)3Al6(BO3)3Si6O18(OH)4

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite Pebbles (Metamorphosed Sandstone (SiO2)) — metamorphic

Quartzite Pebbles

Metamorphosed Sandstone (SiO2)

Quartzite (Quartzite (chiefly SiO2)) — metamorphic

Quartzite

Quartzite (chiefly SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Orange calcite (Calcite (CaCO₃), likely honey/orange calcite) — mineral

Orange calcite

Calcite (CaCO₃), likely honey/orange calcite

Greenish calcite (likely), possibly talc-bearing marble (Calcite, CaCO₃; green coloration may reflect chlorite, epidote, or serpentine inclusions) — mineral

Greenish calcite (likely), possibly talc-bearing marble

Calcite, CaCO₃; green coloration may reflect chlorite, epidote, or serpentine inclusions

Amethyst and Calcite collection (Silicon Dioxide (SiO2) and Calcium Carbonate (CaCO3)) — mineral

Amethyst and Calcite collection

Silicon Dioxide (SiO2) and Calcium Carbonate (CaCO3)

Quartzite Arrowhead (Quartzite (SiO2 silicon dioxide)) — metamorphic

Quartzite Arrowhead

Quartzite (SiO2 silicon dioxide)

Pink calcite (likely iron-stained calcite) (Calcite, CaCO₃; commonly rhombohedral or massive crystalline aggregate) — mineral

Pink calcite (likely iron-stained calcite)

Calcite, CaCO₃; commonly rhombohedral or massive crystalline aggregate

Planet Earth (Gaia (Silicate Terrestrial Planet)) — metamorphic

Planet Earth

Gaia (Silicate Terrestrial Planet)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (mostly SiO2)) — metamorphic

Quartzite

Quartzite (mostly SiO2)

Quartzite (Quartzite (predominantly SiO2)) — metamorphic

Quartzite

Quartzite (predominantly SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

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

Engineer Quartz/Quartzite

SiO2 (Silicon Dioxide with binders)

Sedimentary or metamorphic-derived

Black Diamond / Black Sapphire (Carbon (C) or Corundum (Al2O3)) — mineral

Black Diamond / Black Sapphire

Carbon (C) or Corundum (Al2O3)