Metamorphic Rock (Composed Of Multiple Minerals)

Garnet Schist or Garnet-bearing Quartzite

Metamorphic rock containing Almandine Garnet (Fe3Al2(SiO4)3) and Quartz (SiO2)

Granite Gneiss with Garnet

Garnetiferous Gneiss

Sandstone

Sandstone (various mineral compositions)

Sandstone

Clastic sedimentary rock (primarily SiO2)

Garnet

Almandine formula: Fe3Al2(SiO4)3

Clay Brick

Ceramic structural unit (Al2O3·2SiO2·2H2O as precursor)

Sandstone (Ferruginous)

Arenite (composed primarily of SiO2 with Fe2O3 cement)

Gneiss

Gneiss (High-grade metamorphic rock)

Sandstone (Ferruginous)

Arenite (Fe-rich)

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)

Verde Antique Marble (Serpentinite)

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

Mica Schist

Schist (Biotite/Muscovite rich)

Sandstone (Quartzose)

Arenite (SiO2 based)

Hypersthene

Hypersthene ((Mg,Fe)SiO₃)

Sandstone (Quartzose)

Arenite (composed mainly of SiO2)

Sandstone (Quartzose Sandstone)

Arenite (composed primarily of SiO2)

Unakite

Epidote-Feldspar rock (specifically, a variety of granite)

Sandstone

Arenite (composed primarily of SiO2)

Green Quartzite

Quartzite (primarily SiO2 with chlorite inclusions)

Quartzite with Hematite staining

Quartzite (SiO2) with iron oxide inclusions

Sandstone (with possibly iron oxides and other minerals)

Sandstone

Red Sandstone (Arkose)

Clastic Sedimentary Rock (Lithic Arkose)

Sandstone

Arenite (primarily SiO2)

Banded Chert

Chert (a microcrystalline variety of quartz, SiO2 with minor impurities)

Sandstone

Arenite (composed primarily of SiO2)

Gneiss (specifically a Granitic Gneiss)

Gneiss (Composition: Quartz, Feldspar, Mica)

Gneiss

High-grade metamorphic rock (Gneiss)

Sandstone (with potential mineral inclusions)

Clastic sedimentary rock (primarily Quartz, SiO2)

Aragonite Star Cluster

Aragonite (Calcium Carbonate, CaCO3)

Basalt

Extrusive Mafic Igneous Rock

Banded Gneiss

Gneiss (complex metamorphic silicate rock)

Bivalve Fossil (Internal Mold/Steinkern)

Class Bivalvia (Fossilized Mold)

Greenschist with Quartz Veining

Greenschist (commonly containing Chlorite, Actinolite, and Epidote)

Sandstone (Stream Pebble)

Arenite (primarily SiO2)

Wishing Stone

Greenschist or Basalt with Quartz/Calcite Vein

Schist

Mica Schist (primarily consisting of muscovite KAl2(AlSi3O10)(OH)2 or biotite K(Mg,Fe)3(AlSi3O10)(OH)2)

Sandstone (specifically Picture Sandstone or Wonderstone)

Arenite (composed primarily of SiO2)

Sandstone (Quartz-rich)

Arenite (composed mainly of SiO2)

Quartz with Iron Staining

Silicon Dioxide (SiO2) with Limonite/Hematite inclusions

Greenschist (containing Epidote and Quartz)

Greenschist (Epidote-Chlorite-Actinolite Schist)

Gneiss

Gneiss (a type of metamorphic rock)

Gneiss

High-grade foliated metamorphic rock