Anthropogenic (Man Made Material Mimicking Sedimentary Rock)

Chert or Chalcedony

Microcrystalline Quartz (SiO2)

Quartz

Silicon Dioxide (SiO2)

Chert

Microcrystalline Quartz (SiO2)

Petrified Wood

Silicified Wood (primarily SiO2)

Mica (Muscovite or Biotite)

Sheet silicate mineral group (e.g., KAl2(AlSi3O10)(F,OH)2)

Siltstone

Siltstone (primarily SiO2 with various silicates)

Quartz

Silicon Dioxide (SiO2)

Tumbled jasper pebble

Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities

Quartz Pebble

Silicon Dioxide (SiO2)

Flint

SiO2 (Microcrystalline Quartz / Chert)

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

Quartz

Silicon Dioxide (SiO2)

Flint Pebble

SiO2 (Microcrystalline Quartz / Chalcedony)

Quartz

Silicon Dioxide (SiO2)

Chert (Flint)

Sedimentary Cryptocrystalline Quartz (SiO2)

Quartz

Silicon Dioxide (SiO2)

Honey Calcite

Calcite (Calcium Carbonate - CaCO3)

Chert (or Flint)

Chert (SiO2)

Quartz

Silicon Dioxide (SiO2)

Conglomerate

Clastic Sedimentary (Conglomerate)

Blue Apatite

Ca5(PO4)3(F,Cl,OH)

Quartz

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Coquina

Biogenic Limestone (Coquina)

Jasper

Silicon dioxide (SiO2)

Petrified Wood

Silicified Wood (SiO2 as Quartz/Chert/Chalcedony)

Sandstone

Sandstone ( преимущественно SiO2 )

Chert (or potentially massive Quartz/Quartzite)

SiO2 (Silicon Dioxide)

White Quartz

Silicon Dioxide (SiO2)

White Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Quartz pebble

Silicon dioxide (SiO2)

Yellow Jasper

Silicon Dioxide (SiO2) with iron inclusions

Quartz

Silicon Dioxide (SiO2)

Jasper

Microcrystalline Quartz (SiO2)

Quartz (Chert/Chalcedony variant)

Silicon dioxide (SiO2)

Jasper

Silicon dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Chert (Flint)

Silicon Dioxide (SiO2)

Sandstone

Arenite (SiO2 based)

Flint / Chert Pebble

Cryptocrystalline quartz (SiO2)