Red Sandstone

Arenite (Fe2O3 rich)

sedimentary

Granite

Granite (Phaneritic Quartz-Feldspar Plutonic Rock)

igneous

Granite

Phaneritic plutonic rock (Quartz + Feldspar + Mica)

igneous

Jasper

Silicon dioxide (SiO2)

sedimentary

Granite

Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)

igneous

Granite

Phaneritic Felsic Intrusive Igneous Rock

igneous

Quartzite

Quartzite (primarily SiO2)

metamorphic

Granite

Granite (Phaneritic Igneous Rock)

igneous

Sandstone

Clastic sedimentary rock (primarily SiO2)

sedimentary

Massive Milky Quartz (with Iron Inclusions)

Quartz (Silicon Dioxide, SiO2)

mineral

Banded Agate (specifically Mexican Lace Agate variety appearance)

Silicon Dioxide (SiO2 / Chalcedony)

mineral

Granodiorite

Granodiorite (Intermediate intrusive igneous rock)

igneous

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

mineral

Chalcedony (Common Opal variant or Quartz)

Silicon Dioxide (SiO2)

mineral

Quartz (Milky/Common Quartz)

Silicon Dioxide (SiO2)

mineral

Basalt with Quartz/Feldspar Inclusions

Amygdaloidal or Porphyritic Mafic Volcanic Rock with Siliceous Veining

igneous

Chert (Jasper variety)

Silicon Dioxide (SiO2)

sedimentary

Ironstone (Limonitic Sandstone)

Ferruginous Sandstone (rich in Limonite: FeO(OH)·nH2O)

sedimentary

Sandstone (Quartz-rich)

Arenite (SiO2 based)

sedimentary

Carnelian (Chalcedony)

Silicon Dioxide (SiO2)

mineral

Chert (Jasper/Chalcedony)

Microcrystalline Quartz (SiO2)

sedimentary

Jasper

Jasper (Silica, SiO2)

sedimentary

Yellow Jasper / Chert

Jasper (Silica/Quartz) - SiO2

sedimentary

Yellow Jasper

Silicon Dioxide with iron inclusions (SiO2)

sedimentary

Chert (Jasper/Brown Chert)

Silicon Dioxide (SiO2)

sedimentary

Quartzite

Quartzite (SiO2)

metamorphic

Quartzite River Rock (with Quartz Vein)

Quartzite (SiO2)

metamorphic

Amber

Succinite

Organic Mineraloid

Basalt (Water-worn Pebble)

Mafic Volcanic Rock (High in Fe and Mg)

igneous

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

mineral

Quartzite

Quartzite (primarily SiO2)

metamorphic

Pumice

Pumicite / Vesicular Rhyolite

igneous

Yellow Quartzite

Quartzite (primarily SiO2)

metamorphic

Quartzite

Quartzite (SiO2)

metamorphic

Yellow Quartzite (Iron-Stained Quartz)

Quartzite (SiO2 with Fe-oxide impurities)

metamorphic

Sandstone (Micaceous Sandstone)

Arenite (SiO2 with KAl2(AlSi3O10)(OH)2 inclusions)

sedimentary

Quartz (specifically Milky/Gray Quartz)

Silicon Dioxide (SiO2)

mineral

Quartzite Pebble

Quartzite (SiO2)

metamorphic

Sandstone (Yellow/Siltstone variant)

Arenite (SiO2 primarily)

sedimentary

Chrysoprase

Nickel-bearing Chalcedony (SiO2 with Ni impurities)

mineral

Bumblebee Jasper

Calcite with Arsenic and Manganese oxides (technically a volcanic rock)

igneous

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

mineral