Metamorphic, Likely Sedimentary With Quartz Veins

Quartzite Arrowhead (Archaeological Lithic)

Recrystallized Quartz (SiO2)

Gold

Native Gold (Au)

Quartz Veined Siltstone or Graywacke

Clastic Sedimentary Rock with Quartz (SiO2) veining

Clear Quartz

Silicon Dioxide (SiO2)

Smoky Quartz

Quartz (SiO₂)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Pyrite in Matrix

Iron Sulfide (FeS2)

Aventurine and Amazonite

Silicon Dioxide (SiO2) with inclusions and Microcline (KAlSi3O8)

Quartz (Milky/Clear)

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Gold Nugget

Native Gold (Au)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Fuchsite Quartzite

Fuchsite-bearing Quartzite

Green Chalcedony (likely Green Agate or Chrysoprase)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Yellow Quartz (Citrine Quartz Pebble)

Silicon Dioxide (SiO2)

Rose Quartz with Schist Matrix

Silicon Dioxide (SiO2) with Mica-Schist

Quartz Pebble

Crystalline Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Quartzite Pebble (with Iron Inclusions)

Metamorphic Rock (Mainly SiO2)

Rutilated Quartz (likely Citrine or Smoky Quartz with Rutile inclusions)

SiO2 with TiO2 inclusions (Quartz with Rutile)

Sandstone or Quartzite

Arenite (if sedimentary) / Quartzite (if metamorphic)

Gneiss (specifically Granitic Gneiss)

Gneissic Metamorphic Rock

Quartzite with Quartz Vein

Quartzite (primarily SiO2)

Glacial Cobble (likely Granitic or Gneissic)

Granite/Gneiss Glacial Erratic

Chert (with Quartz Veining)

Chert (formula: SiO2)

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite or Goethite inclusions

Massive Milky Quartz (with Iron Inclusions)

Quartz (Silicon Dioxide, SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz

Quartz (SiO2, Silicon Dioxide)

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

Marble

Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)

Quartz Pebble (with potential iron inclusions)

Silicon Dioxide (SiO2)

Quartz

Quartz (SiO₂)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Epidote with Magnetite/Hematite inclusions

Epidote (Ca2(Al2,Fe3+)(SiO4)3(OH)) with Iron Oxides

Gold Ore (Auriferous Quartz with Chalcopyrite/Pyrite)

Au (Native Gold) in Quartz (SiO2) with FeS2 (Pyrite) or CuFeS2 (Chalcopyrite)

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Quartz

Quartz (SiO2 - Silicon Dioxide)

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)