Blue Apatite
Apatite, Ca5(PO4)3(F,Cl,OH)
mineral
Category
Marble
Browse marble specimens identified by the Rock Identifier community.
Lapis Lazuli
Lazurite-dominated contact metamorphic rock
metamorphic
Tourmaline (Mixed colors)
Boron silicate mineral (Na,Ca)(Li,Mg,Al,Fe,Mn,Ti,V,Cr)3Al6(BO3)3Si6O18(OH,F)4
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Honey Calcite
Calcium Carbonate (CaCO3)
mineral
Lapis Lazuli
Lapis Lazuli (Rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2, Calcite, and Pyrite)
metamorphic
Tourmaline (Multi-colored)
Complex Borosilicate (Na,Ca)(Li,Mg,Al,Fe)3Al6(BO3)3Si6O18(OH)4
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Synthetic Marbled Aggregate (Footwear Component)
Ethylene-vinyl acetate (Croslite™)
not a rock (man-made polymer)
Lapis Lazuli
Lazurite-rich metamorphic rock
metamorphic
Calcite-rich limestone, possibly fossiliferous
Limestone composed mainly of calcite (CaCO₃), potentially containing a fragmentary fossil or calcite-filled structure
sedimentary
Coarse-grained marble or calcite-rich metamorphic rock
Calcite (CaCO₃), likely marble with mica and silicate minerals
metamorphic
Gray-white marble
Calcite marble (recrystallized limestone; primarily CaCO₃)
metamorphic
Polished banded calcite (possibly onyx marble)
Calcite, CaCO₃; exact variety is uncertain from the image
mineral
Quartz-rich metamorphic rock, likely quartzite
Quartzite; predominantly crystalline quartz (SiO₂), possibly with feldspar or mica
metamorphic
Pink Quartzite
Quartzite (SiO2)
metamorphic
Quartzite (with Iron Staining)
Metamorphosed Sandstone (mainly SiO2 with Fe2O3/FeOOH impurities)
metamorphic
Green Quartzite (with Hematite inclusions)
Metamorphic Quartz (SiO2) with various inclusions
metamorphic
Rounded pale pebble, likely limestone
Calcite-rich limestone (CaCO₃), identification tentative from appearance
sedimentary
Chalky limestone
Calcite-rich limestone; chiefly calcium carbonate (CaCO₃)
sedimentary
Fossiliferous limestone (likely orthoceras or crinoid-bearing limestone)
Bioclastic carbonate rock; commonly calcite (CaCO₃) with fossil fragments
fossil
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Tumbled orange calcite
Calcite (calcium carbonate, CaCO₃)
mineral
Blue Quartzite
Metamorphosed Quartz (SiO2) with inclusions
metamorphic
Quartz (Engineered Quartz Surface)
Silicon Dioxide (SiO2) based composite
mineral (man-made composite)
Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz (Engineered Stone Countertop)
Silicon Dioxide (SiO2) with polymer resins
Sedimentary-like (Industrial Composite)
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Pink Calcite
Calcium Carbonate (CaCO3)
mineral
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Polished gray-brown stone, likely soapstone or marble
Steatite (talc-rich soapstone) or calcitic marble; exact identification is uncertain from the image
metamorphic
Quartz-veined dark metamorphic rock, likely marble or serpentinite
Calcite- or magnesite-veined serpentinite/marble; exact identification requires testing
metamorphic
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)
metamorphic
Quartzite Arrowhead
Quartzite (SiO2 silicon dioxide)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite with Feldspar
Quartzite (mainly SiO2) with inclusions of Potassium Feldspar (KAlSi3O8)
metamorphic