Marble

Calcite

Calcium Carbonate (CaCO3)

Blue Sapphire

Corundum (Al2O3)

Lapis Lazuli

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

Ruby (Rough/Raw)

Corundum (Al2O3:Cr)

Blue Sapphire

Corundum (Al2O3 with trace Titanium/Iron)

Quartzite

Quartzite (SiO2)

Honey Calcite

Calcium Carbonate (CaCO3)

Picasso Jasper (or Picasso Marble)

Metamorphosed Limestone (Calcium Carbonate, CaCO3, with impurities)

Orange Calcite (Banded Calcite)

Calcium Carbonate (CaCO3)

Quartzite

Quartzite (primarily SiO2)

Orange Calcite

Calcium Carbonate (CaCO3)

Rough Green Calcite

Calcite (Calcium Carbonate, CaCO3)

Quartzite

Quartzite (primarily SiO2)

Verde Antique Marble (Serpentinite)

Serpentinite (composed mainly of Serpentine group minerals, Mg3Si2O5(OH)4)

Ruby

Corundum (Al2O3 with Chromium trace elements)

Quartzite

Quartzite (primarily SiO2)

Howlite

Howlite (Calcium borosilicate hydroxide: Ca2B5SiO9(OH)5)

Quartzite River Pebble

Quartzite (primarily SiO2)

Yellow Calcite

Calcium Carbonate (CaCO3)

Granite (Pink/Red variety)

Phaneritic Felsic Intrusive Igneous Rock (composed primarily of Quartz, K-Feldspar, and Plagioclase)

Quartzite

Quartzite (SiO2)

Granite

Phaneritic Plutonic Igneous Rock (composed of quartz, alkali feldspar, and plagioclase)

Quartzite

Quartzite (SiO2)

Quartzite with Hematite

Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 inclusions)

Zebra Jasper

Tumbled Opaque Chalcedony (SiO2)

Quartzite

Quartzite (primarily SiO2)

Quartzite

Quartzite (SiO2)

Orange Calcite (Carved as a Horned Skull)

Calcium Carbonate (CaCO3)

Larimar

Blue Pectolite (NaCa2Si3O8(OH))

Larimar

Blue Pectolite (NaCa2Si3O8(OH))

Quartzite

Quartzite (SiO2)

Quartzite

Metamorphosed Quartz Sandstone (primarily SiO2)

Gneiss (Metamorphic Rock)

Gneiss (variable mineral formula primarily containing Quartz, Feldspar, and Mica)

Ruby

Corundum (Al2O3 with Chromium trace impurities)

Quartzite (specifically an iron-stained or Carnelian-colored variety)

Silicon Dioxide (SiO2) with iron oxide inclusions

Quartz (Engineered Stone Countertop)

Silicon Dioxide (SiO2) within a resin matrix

Orange Calcite

Calcite (Calcium Carbonate, CaCO3)

Yellow Calcite

Calcium Carbonate (CaCO3)

Orange Calcite

Calcium Carbonate (CaCO3)

Quartzite Pebbler

Quartzite (primarily SiO2)

Quartzite

Quartzite (primarily SiO2)

Quartzite (River Stone)

Quartzite (composed primarily of Silicon Dioxide, SiO2)