Man Made Byproduct (Non Geological)

Jasper (Red Chert)

Jasper (Silicon Dioxide, SiO2)

Jasper with Quartz (Agate/Jasper mix)

Silicon Dioxide (SiO2) with iron oxide inclusions

Gold Nugget

Native Gold (Au)

Hematite

Iron(III) oxide (Fe2O3)

Smoky Quartz Cluster

Silicon Dioxide (SiO2)

River Cobble (Quartzite)

Meta-orthoquartzite

Carnelian (Red Chalcedony)

Silicon Dioxide (SiO2)

Basalt (River Stone)

Basalt

Green Moss Agate

Silicon Dioxide with inclusions (SiO2)

Quartzite

Quartzite (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Sandstone

Arenite (SiO2 based)

Sandstone (likely Arkosic)

Clastic Sedimentary Rock (primarily SiO2 with Feldspar)

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 oxides)

Sandstone

Arenite (primarily SiO2)

Sandstone (Quartzose Sandstone)

Arenite (primarily SiO2)

Quartz Pebble (Chert/Chalcedony variety)

Silicon Dioxide (SiO2)

Sandstone

Arenite

Quartzite Pebble

Quartzite (primarily SiO2)

River Quartz Cobble

Silicon Dioxide (SiO2)

Shale

Shale (comprised mostly of clay minerals and quartz)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartzite

Quartzite (SiO2)

Quartzite River Rock

Quartzite (primarily SiO2)

Quartzite

Quartzite (SiO2)

Limestone

Calcium Carbonate (CaCO3)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Chert (specifically Flint or Common Chert)

Chert (Cryptocrystalline Silica, SiO2)

Citrine

Citrine (Silicon Dioxide, SiO2)

Chert (Yellow Jasper variant)

Microcrystalline Quartz (SiO2)

Pink Quartz (Rose Quartz)

Silicon Dioxide (SiO2)

Chert (Nodular Chert)

Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)

Sandstone

Arenite (Sedimentary Rock)

Sandstone

Arenite

Obsidian

Volcanic Glass (SiO2)

Gold Nugget

Native Gold (Au)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Rose Quartz

Rose Quartz (SiO2)

Red Sandstone

Arenite (Ferruginous Sandstone)

Rose Quartz

Quartz (Silicon Dioxide) - SiO2