Man Made Material (Metal)

Turquoise

Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)

Turquoise

Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]

Coal (most likely Bituminous or Anthracite)

Coal (primarily composed of carbon with varying amounts of other elements)

Sandstone (Ferruginous/Banded)

Clastic Terrigenous Sandstone (SiO2 with Fe2O3 cement)

Biotite (Mica)

Biotite group (K(Mg,Fe)3AlSi3O10(F,OH)2)

Limonite (Iron Ore/Sandstone mixture)

Limonite (FeO(OH)·nH2O) often mixed with Goethite and sedimentary matrix

Epidote with Feldspar/Quartz (Unakite-like)

Epidotized Granite (Ca2(Al,Fe)3(SiO4)3(OH) + KAlSi3O8)

Pyrite

Iron Sulfide (FeS2)

Tufa

Calcareous Tufa (CaCO3)

Banded Chert (Ironstone/Jasper)

Cryptocrystalline Quartz (SiO2) with Iron Oxides

Granite Cobble

Granite (Phaneritic igneous rock composed of Quartz, Feldspar, and Mica)

Olivine (Peridot)

Magnesium Iron Silicate (Mg,Fe)2SiO4

Olivine (Peridot)

Magnesium Iron Silicate ((Mg, Fe)2SiO4)

Quartzite Pebble

Quartzite (predominantly Silicon Dioxide - SiO2)

Anthracite Coal

Anthracite (Carbon-rich metamorphic coal)

Diorite

Diorite

Diorite

Diorite (Intermediate intrusive igneous rock)

Jasper River Pebble

Silicon Dioxide (SiO2)

Pink Quartzite

Metamorphosed Quartz Arenite (SiO2)

Granite

Phaneritic Plutonic Rock (primarily Quartz, Feldspar, and Mica)

Limestone (specifically Fossiliferous or Crinoidal Limestone)

Calcium Carbonate (CaCO3) - Calcite Rock

Jasper

Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

White Marble

Recrystallized Calcite (CaCO3)

Jasper Conglomerate (Puddingstone)

Siliceous Conglomerate (Quartz and Jasper clasts in a fine-grained matrix)

Basalt

Mafic Volcanic Rock (composed of Plagioclase Feldspar and Pyroxene)

Unakite

Epidotized Granite (SiO2, KAlSi3O8, Ca2(Al, Fe)3(SiO4)3(OH))

Basalt

Basalt

Limestone

Calcium Carbonate (CaCO3)

Petrified Wood

Silicified Wood (primarily SiO2)

Jasper (Iron-stained Chert)

Silicon Dioxide (SiO2) with iron oxide inclusions

Quartzite (Orthoquartzite)

Quartzite (SiO2)

Chert

Silicon dioxide (SiO2)

Jade (Nephrite or Jadeite)

Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 (amphibole mineral); Jadeite: NaAlSi2O6 (pyroxene mineral)

Basalt

Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)

Ironstone with Pyrite

Ferruginous Sandstone (Fe2O3) with minor Sulfide minerals (FeS2)

Yellow Quartzite (Tumbled)

Quartzite (SiO2)

Conglomerate (River Rock)

Clastic sedimentary rock (primarily SiO2)

Sandstone

Arenite

Orange Quartzite (River Pebble)

Quartzite (SiO2 with iron oxide impurities)

Diorite

Diorite (Intermediate intrusive igneous rock)

Chert (often called Flint in this variation)

Silicon dioxide (SiO2) - Microcrystalline quartz