Mineral Side Rock

Sandstone (likely Quartzose Sandstone)

Arenite (SiO2 predominantly)

Sandstone

Arenite (SiO2 principal)

Sandstone (Greywacke/Lithic Sandstone)

Clastic Sedimentary Rock (Lithic Sandstone)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Milky/Clear Variety)

Silicon Dioxide (SiO2)

Clear Quartz / Rock Crystal

Silicon Dioxide (SiO2)

Quartz (Druzy)

Silicon Dioxide (SiO2)

Granitic Pegmatite

Granite Pegmatite (coarse-grained intrusive igneous rock)

Quartz in Host Rock

Silicon Dioxide (SiO2) in Rhyolite or Granite matrix

Milky Quartz

Silicon Dioxide (SiO2)

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])

Limonite (Iron-rich Siltstone / Sandstone base)

Hydrous ferric oxide mixture (FeO(OH)·nH2O)

Bauxite

Bauxite (Al2O3·2H2O)

Sandstone

Arenite (primarily Quartz Arenite)

Sandstone

Arenite (composed primarily of SiO2)

Sandstone

Arenite (often composed of Quartz, SiO2)

Diorite

Intermediate plutonic igneous rock

Red Sandstone

Arenite (predominantly Quartz with Hematite cementation)

River Pebble (Sandstone)

Clastic Sedimentary Rock (Sandstone)

Amygdaloidal Basalt with Quartz/Calcite Inclusions

Amygdaloidal Basalt (SiO2 / CaCO3 inclusions)

Sandstone

Arenite (Siliclastic sedimentary rock), SiO2 + various minerals

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic extrusive volcanic rock with secondary mineral infilling)

Granite

Granite (felsic intrusive igneous rock)

Sandstone

Arenite

Sandstone

Arenite (Sedimentary rock composed of sand-sized minerals or rock grains)

Dalmatian Jasper

Peralkaline Quartz-feldspathic Rock (Arfvedsonite-bearing)

Granite

Granite (compositional mixture of Quartz, Feldspar, and Mica)

Lapis Lazuli

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

Bauxite

Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))

Sandstone

Arenite (SiO2 based)

Milky Quartz (Quartz Vein)

Silicon Dioxide (SiO2)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Biotite Schist (likely)

Biotite Schist (rock), Biotite (mineral)

Rough Sapphire (Corundum)

Corundum (Al2O3)

Granitic Gneiss

Gneiss (High-grade metamorphic rock)

Sandstone (Ferruginous)

Arenite (primarily SiO2 with iron oxide cement)

Sandstone (Banded)

Clastic sedimentary rock (primarily SiO2)

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily Quartz with Hematite/Limonite oxides)

Sandstone

Arenite (specifically Quartz Arenite)

Quartz Pebble

Silicon Dioxide (SiO2)

Concrete Fragment

Hardened Portland cement and mineral aggregate