Likely limestone or marble
Calcite-rich carbonate rock; chiefly calcium carbonate, CaCO₃
Category
Browse sedimentary (if limestone) or metamorphic (if marble) specimens identified by the Rock Identifier community.
Likely limestone or marble
Calcite-rich carbonate rock; chiefly calcium carbonate, CaCO₃
Calcite
Calcite (Calcium Carbonate, CaCO3)
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Calcite
Calcite (CaCO3)
Calcite (likely a tumbled specimen)
Calcite (CaCO 3 )
Fine-grained crystalline rock fragment, possibly limestone or marble
Undetermined carbonate rock; likely calcite-rich limestone or marble (CaCO₃)
Weathered limestone or marble slab
Likely calcite-rich carbonate stone; exact identification is uncertain from the image
Calcite
Calcium Carbonate (CaCO3)
Banded limestone or marble fragment
Calcite-rich carbonate rock; likely banded marble (CaCO₃)
Marble
Metamorphic limestone (CaCO3)
Light-colored limestone or marble fragment
Calcite-rich carbonate rock; likely limestone (CaCO₃), possibly recrystallized marble
Travertine
Terrestrial Sedimentary Limestone (CaCO3)
Marble
Metamorphic Limestone (CaCO3)
Marble
Metamorphic limestone (CaCO3)
Marble
Metamorphic limestone (CaCO3)
Marble
Recrystallized Limestone (CaCO3)
Marble
Metamorphic carbonate rock (CaCO3)
Marble
Metamorphosed Limestone (main mineral: Calcite, CaCO3)
Likely limestone or marble fragment
Calcite-rich carbonate rock (CaCO₃); precise identification is uncertain from the image
Marble
Recrystallized Calcite (CaCO3)
Tumbled limestone or marble
Calcite-rich carbonate rock; likely limestone (CaCO₃), possibly marble
Orange Calcite
Calcium Carbonate (CaCO3)
Tumbled limestone or marble fragment
Calcite (CaCO₃), likely marble; possibly compact limestone
Marble
Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)
Marble
Recrystallized Calcite (CaCO3)
Marble
Metamorphosed limestone, primarily CaCO3
Marble
Recrystallized Calcite (CaCO3)
Marble
Recrystallized Calcite (CaCO3) Rock
Marble
Metamorphosed Limestone (CaCO3)
Marble
Recrystallized Calcite (CaCO3)
Marble
Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)
Marble
Recrystallized Calcite (CaCO3)
Marble
Metamorphosed Limestone (CaCO3)
Blue Calcite
Calcium Carbonate (CaCO3)
White Marble
Metamorphic Limestone (CaCO3)
Marble
Metamorphosed Limestone (CaCO3)
White Marble
Recrystallized Calcite (CaCO3)
Marble
Recrystallized Calcite / Dolomite (CaCO3)
Marble
Metamorphic carbonate rock, primarily recrystallized calcite (CaCO3) or dolomite
Marble
Metamorphosed Limestone (calcite formulation CaCO3)
Marble
Recrystallized Calcite (CaCO3)
Marble
Metamorphosed Limestone (primarily calcite CaCO3 or dolomite CaMg(CO3)2)