Metamorphic Rock (Primarily Composed Of Minerals)

Lapis Lazuli (Tumbled)

Lazurite-dominated contact metamorphic rock

Lapis Lazuli

Na8[Al6Si6O24]Sn (Lazurite-rich metamorphic rock)

Sandstone

Arenite (primarily SiO2 with various cementing agents)

Sandstone

Arenite (primarily SiO2)

Green Schist

Greenschist (composed of Chlorite, Actinolite, and Epidote)

Marble

Metamorphic Limestone (CaCO3)

Sandstone

Arenite (primarily SiO2 - Silicon Dioxide)

Unakite

Epidotized Granite

Breciated Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Orange Calcite (likely polished specimen)

Calcite

Lapis Lazuli (polished cabochon)

Lazurite-rich metamorphic rock (approx. Na6Ca2Al6Si6O24(SO4,S,Cl)2)

Lapis Lazuli

Sodium aluminum silicate with sulfur (main component: Lazurite [(Na,Ca)8(AlSiO4)6(SO4,S,Cl)2])

Andesite

Intermediate Volcanic Rock (Andesite)

Granite Pebble

Granite (Phaneritic Quartz-Feldspar Rock)

Slate

Foliated Metamorphic Rock (composed primarily of Quartz, Muscovite, and Illite)

Sandstone (with potential iron-oxide staining)

Arenite (primarily SiO2)

Dalmatian Jasper / Dalmatian Stone

Peralkaline Rock (Silicon Dioxide with Amphibole inclusions)

Lapis Lazuli (Raw)

Lazurite-rich metamorphic rock; Na3Ca(Al3Si3O12)S

Sandstone

Arenite (SiO2 + various cementing minerals)

Lapis Lazuli

Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2

Brecciated Jasper

Silicon Dioxide (SiO2) with Hematite impurities

Lapis Lazuli (Lazurite crystals on Marble)

Lazurite / (Na,Ca)8[(S,Cl,SO4,OH)2|(AlSiO4)6]

Gneiss

Gneiss (Metamorphic rock composed primarily of quartz, feldspar, and mica)

Lapis Lazuli (Tumbled Stone)

Na6Ca2(Al6Si6O24)(SO4,S,Cl)2 (Lazulite-rich Metamorphic Rock)

Gneiss (Stream-worn Cobble)

Gneiss (Metamorphic rock composed primarily of Quartz, Feldspar, and Mica)

Marble (White)

Metamorphosed Limestone (mainly CaCO3)

Gneiss (specifically Biotite Gneiss)

Gneiss (high-grade metamorphic rock primarily composed of Silicates)

Sandstone

Arenite (SiO2 based)

River Cobble (Gneiss/Migmatite)

Gneissic Metamorphic Rock (composed mainly of Quartz, Feldspar, and Biotite)

Dalmatian Stone

Dalmatian Jasper (Aplitic Rock)

Sandstone

Arenite (primarily SiO2)

Dalmatian Stone

Dalmatian Jasper (Aplitic Perthite)

Gneiss (specifically a Granitic Gneiss specimen)

Gneiss (high-grade metamorphic rock primarily composed of Quartz, Feldspar, and Biotite/Amphibole)

Sandstone

Arenite (primarily composed of SiO2)

Serpentinite

Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)

Slate

Foliated Metamorphic Rock (composed primarily of silica and alumina with iron and magnesium)

Sandstone (Tumbled/River Pebble)

Arenite (composed primarily of SiO2)

Sandstone (Ferruginous)

Arenite with Iron Oxide cement (SiO2 + Fe2O3)

Banded Rock (likely Quartz-rich)

Uncertain, likely a Metamorphic Rock (e.g., Gneiss or Schist) with prominent Quartz and other minerals

Bauxite

Bauxite (principal ore of aluminum, primarily Al(OH)3)

Granite

Granite (Phaneritic intrusive igneous rock)

Unakite

Unakite (Metasomatized Granite)