Metamorphic, Likely Sedimentary With Quartz Veins

White Quartz

Silicon Dioxide (SiO2)

Wishing Stone (Basalt/Greywacke with Quartz Vein)

Basalt or Siltstone with SiO2 (Quartz) hydrothermal intrusion

igneous/sedimentary

Pyrite (locally known as Fool's Gold)

Iron Sulfide (FeS2)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Quartz (Milky/Crystalline variety)

Silicon Dioxide (SiO2)

Banded Slate or Siltstone with Quartz/Calcite Veins

Protolith-derived Siltstone or Slate (varies based on degree of metamorphism)

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Quartz (Milky/Gray variety)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz Vein in Host Rock (clastic sediment)

Silicon Dioxide (SiO2) in matrix

sedimentary

Granite / Quartz Vein Rock

Granitoid with Quartz (SiO2)

igneous

Quartz with Iron Oxide Inclusions

SiO2 with Fe2O3 impurities

Gneiss (with Mica and Quartz)

Gneissic Metamorphic Rock

Graphite

Graphite (Native Carbon, C)

Quartz (River Pebble)

Quartz (Silicon Dioxide, SiO2)

Quartz

Silicon dioxide (SiO2)

Milky Quartz (or Vein Quartz)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartzite

Quartzite (primarily SiO2)

Yellow Quartz (Citrine/Yellow Jasper mix)

Silicon Dioxide (SiO2)

Pyrite in Quartz

Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Milky and Bull Quartz)

Silicon Dioxide (SiO2)

Quartz (Milky/Crystalline variety)

Silicon Dioxide (SiO2)

Quartz

Quartz (SiO2)

Orange Quartz with Hematite inclusions

Quartz (SiO2) with Hematite (Fe2O3) inclusions

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Milky Quartz in Conglomerate Matrix

Silicon Dioxide (SiO2) within Clastic Sedimentary Rock

sedimentary

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Native Gold

Native Gold (Au)

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

Amethyst with Marcasite accents

Amethyst (Silicon Dioxide SiO2) and Marcasite (Iron Sulfide FeS2)

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Chert (with Quartz vein)

Chert (Silicon Dioxide, SiO2)

sedimentary

Quartz Vein in Schist

Quartz (SiO2) in Mica Schist

Quartz (Milky or Cloudy Quartz)

Silicon Dioxide (SiO2)

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)