Metamorphic Rock (Composed Of Multiple Minerals)

Quartzite

Quartzite (primarily SiO2)

Quartzite

Quartzite (primarily SiO2)

Yellow Calcite

Calcium Carbonate (CaCO3)

Tree Agate

Silicon Dioxide (SiO2) - Dendritic Agate/Chalcedony

Limestone (specifically Travertine or Tufa)

Calcium Carbonate (CaCO3)

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

Granite with Biotite and Quartz

Phaneritic Felsic Igneous Rock (composed of SiO2, KAlSi3O8, and K(Mg,Fe)3AlSi3O10(OH)2)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Bumble Bee Jasper

Volcanic Tuff (mixture of SiO2, CaCo3, S, and As2S3)

Rose Quartz

Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Limonite-stained Chert

Silicon Dioxide (SiO2) with Hydrated Iron Oxide (FeO(OH)·nH2O)

Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)

Conglomerate

Conglomerate (clastic sedimentary rock)

Amygdaloidal Rhyolite

Amygdaloidal felsic extrusive rock

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

Sedimentary Breccia

Breccia (Clastic Sedimentary Rock)

Sandstone (with Limonite staining)

Arenite (primarily SiO2 with FeO(OH)·nH2O)

Serpentine

Antigorite / Lizardite / Chrysotile [(Mg,Fe)3Si2O5(OH)4]

Stichtite in Serpentine (Atlantisite)

Mg6Cr2CO3(OH)16·4H2O (Stichtite) within Mg3Si2O5(OH)4 (Serpentine)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Epidote in Matrix (Unakite-related)

Epidosite (Ca2(Al,Fe)3(SiO4)3(OH))

Conglomerate

Conglomerate (clastic sedimentary rock)

Granite Pebble (Weathered)

Phaneritic Felsic Igneous Rock

Dark Igneous Rock (Likely Basalt or Diabase)

Basalt (extrusive igneous rock) or Diabase (intrusive igneous rock - also known as Dolerite), largely composed of plagioclase feldspar, pyroxene (augite), and sometimes olivine and amphibole. Exact mineralogy would require thin section analysis.

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Granite

Granite (a felsic intrusive igneous rock)

Petrified Wood

Silicified wood (primarily Quartz/Chalcedony, SiO2)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Red Sandstone (Iron-rich Sandstone)

Clastic Sedimentary Rock - Quartz Arenite / Arkose with Hematite Cement

Jasper

Silicon dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Celestine (Celestite)

Strontium Sulfate (SrSO4)

Nephrite Jade

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

Quartzite

Quartzite (primarily SiO2)

Limonite (often after Hematite or Goethite)

Limonite (FeO(OH)·nH2O)

Quartzite with Quartz Veining

Quartzite (primarily SiO2)

Granite (Pink/Red Orthoclase variety)

Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)

Jade (Nephrite or Jadeite)

Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (Na(Al,Fe3+)Si2O6)

Granite

Granite (Felsic Plutonic Rock)

Diorite

Diorite (an intrusive igneous rock)

Diorite

Intermediate plutonic igneous rock

Pink Granite

Phaneritic Felsic Igneous Plutonic Rock