Man Made Silicate (Anthropogenic Glass)

Carnelian Agate

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper

Jasper (Silica/Quartz) - SiO2

Chert (Flint)

Microcrystalline Quartz (SiO2)

Jasper (Iron Oxide Rich)

Silicon Dioxide (SiO2) with Fe2O3 (Hematite/Goethite) inclusions

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Red Jasper (Chert)

Silicon Dioxide (SiO2)

Milk Quartz (Vein Quartz)

Quartz (Silicon Dioxide, SiO2)

Chert (specifically Gray Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Quartzite River Pebbles

Quartzite (primarily SiO2)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Quartzite

Quartzite (primarily SiO2)

Red Jasper (River Siltstone)

Silicon Dioxide (SiO2) with iron oxide inclusions

Pink Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Rose Quartz

Quartz (Silicon Dioxide) - SiO2

Rose Quartz

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

Quartz Pebble

Quartz (Silicon Dioxide - SiO2)

Milky Quartz (Tumbled Pebble)

Silicon Dioxide (SiO2)

Quartz (Milky or Grainy Variety)

Silicon Dioxide (SiO2)

Quartz (Druzy or Crystalline variety)

Silicon Dioxide (SiO2)

Obsidian

Volcanic glass (SiO2 - Silicon Dioxide with impurities)

Fluorite

Calcium Fluoride (CaF2)

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Green Fluorite in Host Rock

Fluorite (Calcium Fluoride, CaF2)

Clear Quartz

Silicon Dioxide (SiO2)

Potassium Feldspar (Orthoclase)

Orthoclase (KAlSi3O8)

Milky Quartz

Silicon Dioxide (SiO2)

Pink Quartzite

Silica (SiO2) - Metamorphic rock

Chert (Flint variety)

Silicon Dioxide (SiO2)

Sandstone (Ferruginous)

Arenite (with Iron Oxides)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Quartzite

Quartzite (primarily SiO2)

Quartz (specifically Clear Quartz with iron/hematite staining)

Silicon Dioxide (SiO2)

Quartzite

Quartzite (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Lepidolite

Lepidolite (K(Li,Al)3(Al,Si)4O10(F,OH)2)

Chert (Arrowhead Debitage or Spall)

Silicon Dioxide (SiO₂)

Chert (Flint)

Chert (Silicon Dioxide, SiO2)

Sandstone (Quartzose Sandstone)

Arenite (SiO2 principal component)

Quartzite

Quartzite (primarily SiO2)