Sedimentary (If Limestone) Or Metamorphic (If Marble)

Polished/tumbled light-colored stone, possibly quartzite or marble

Uncertain; likely quartzite (mostly SiO₂) or calcite marble (CaCO₃)

Yellow Calcite

Calcite (Calcium Carbonate, CaCO3)

Calcite

Calcium Carbonate (CaCO3)

Marble

Marble (primarily Calcite, CaCO3 or Dolomite, CaMg(CO3)2)

Marble

Metamorphic rock primarily composed of Calcite (CaCO3)

Calcite

Calcium Carbonate (CaCO3)

Yellow Calcite

Calcium Carbonate (CaCO3)

Calcite

Calcium Carbonate (CaCO3)

Yellow Calcite

Calcite (Calcium Carbonate, CaCO3)

Banded limestone or marble

Calcite-rich carbonate rock; likely veined limestone, possibly low-grade marble (CaCO₃)

Marble

Calcite marble; predominantly CaCO₃

Yellow Calcite

Calcium Carbonate (CaCO3)

Banded calcite (likely marble or calcite-rich limestone)

Calcite, CaCO₃; possibly calcitic marble

Green-and-white marble (likely serpentine-bearing marble)

Calcite- or dolomite-rich marble with green serpentine/chlorite minerals; exact identification requires testing

Pink Marble or Rose Quartz (Likely Pink Marble based on carving texture)

Recrystallized Calcite (CaCO3)

Polished gray marble slab

Calcite-rich marble (recrystallized limestone; chiefly CaCO₃)

Orange Calcite

Calcite (Calcium Carbonate, CaCO3)

Marble (Fire and Ice or Pink Veined)

Metamorphosed Limestone (principally CaCO3)

Honey Calcite

Calcium Carbonate (CaCO3)

White Marble

Recrystallized Calcite / Calcium Carbonate (CaCO3)

White Marble

Recrystallized Calcite (CaCO3)

Lapis Lazuli (or Sodalite)

Lapis Lazuli (principally Lazurite: Na6Ca2(Al6Si6O24)S2)

Lapis Lazuli

Lapis Lazuli (Mineral composition: Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)

Likely calcite-rich limestone

Calcite (CaCO₃), possibly recrystallized limestone

Polished white-and-gold stone, likely marble

Calcite marble (primarily CaCO₃); exact identification requires testing

Green Calcite

Calcium Carbonate (CaCO3)

Lapis Lazuli

Lapis Lazuli (Complex aggregate of Lazurite, Calcite, and Pyrite)

Calcite

Calcium Carbonate (CaCO3)

Quartz-rich limestone or calcitic marble

Calcite (CaCO₃), possibly with quartz (SiO₂)

Dendritic limestone or marble slab

Manganese-oxide dendrites in carbonate rock, likely calcite (CaCO₃)

Likely calcite-rich limestone or marble fragment

Calcite (CaCO₃), probably micritic limestone; exact identification requires testing

Carrara Marble

Metamorphosed Limestone

Lapis Lazuli (prominent blue specimen in collection)

Lazurite-rich metamorphic rock (Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2

Green Calcite

Calcium Carbonate (CaCO3)

Calcite

Calcium Carbonate (CaCO3)

Coarse-Grained Marble

Recrystallized Limestone (Major component: CaCO3)

Calcite

Calcium Carbonate (CaCO3)

Orange Calcite

Calcium Carbonate (CaCO3)

Banded calcite marble

Calcite-rich marble (CaCO₃), likely impure marble

Quartzite

Quartzite (SiO2)

Yellow Calcite

Calcium Carbonate (CaCO3)

Polished Marble (likely Carrara-type with Iron oxides)

Metamorphosed Carbonate (CaCO3)