Man Made Metamorphic Style Composite

Nephrite Jade

Nephrite

Sandstone (likely a river or beach pebble)

Sandstone (a clastic sedimentary rock)

Basalt with Epidote Veining

Basalt (Mafic Extrusive Rock) with Ca2(Al,Fe)3(SiO4)3(OH)

Granite

Granite (a common rock type, not a single mineral species)

Limonite (Iron Ore)

Limonite (Hydrated Iron Oxide, FeO(OH)·nH2O)

Marble

Recrystallized Calcite (CaCO3)

Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Basalt with Epidote/Chlorite

Amygdaloidal Basalt (SiO2 with (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)))

Amphibolite

Amphibolite

Ferruginous Sandstone

Clastic sedimentary rock (SiO2 with Fe2O3/FeO(OH) cement)

Gneiss (Stream-worn Cobble)

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

Gneiss (specifically Biotite Gneiss)

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

Slate

Foliated Metamorphic Rock (primarily composed of quartz, illite, and chlorite)

Slate

Foliated Metamorphic Rock (primarily composed of quartz, illite, and chlorite)

Slate

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

Slate

Foliated Metamorphic Rock (composed mainly of clay minerals or micas)

Slate

Foliated Metamorphic Rock (Mainly composed of Quartz, Illite, Chlorite)

Coquina

Coquina (Biogenic Limestone / CaCO3)

Diamond (in Gold Jewelry)

Carbon (C)

Slate

Foliated Metamorphic Rock (composed mainly of Quartz, Illite, and Chlorite)

Slate

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

Wishing Stone with Quartz Veins

Quartzite or Quartz-veined Metamorphic Rock (composed mainly of SiO2)

Slate

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

Marble

Metamorphic rock composed of Recrystallized Carbonate Minerals (chiefly CaCO3)

Gneiss

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

River Cobble (Gneiss/Migmatite)

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

Green Banded Chert (Agate/Jasper)

Silicon Dioxide (SiO2) with trace impurities of Chlorite or Glauconite

Sandstone

Arenite (Clastic Sedimentary Rock)

Granite

Granite (Phaneritic intrusive igneous rock; primarily SiO2 and Al2O3)

Red Sandstone (Arkose)

Clastic Sedimentary Rock (Lithic Arkose)

Red Sandstone

Arenite (primarily composed of SiO2 with Fe2O3 cement)

Sandstone

Arenite (composed primarily of SiO2)

Granite

Granite (composed of Quartz, Alkali Feldspar, and Plagioclase)

Granite (Fine-grained)

Phaneritic Felsic Igneous Rock

Quartzite

Quartzite

Native Silver

Silver (Ag)

Limestone

Calcareous Sedimentary Rock (CaCO3)

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Sandstone (Ferruginous)

Arenite (Fe-rich)

Sandstone

Arenite (primarily SiO2)

Coarse Sandstone

Arenite (SiO2 based)

Sandstone (Quartzose Sandstone)

Arenite (primarily SiO2)