Quartz

Quartz Pebble

Silicon Dioxide (SiO2)

Green faceted gemstone pendant, likely green quartz

Quartz (SiO₂), possibly prasiolite or green-treated quartz

Quartz (beads)

SiO2 (Silicon Dioxide)

Geode with Quartz Crystals

SiO2 (Silicon Dioxide) in a geode formation

Tourmalinated quartz point

Quartz (SiO₂) with black tourmaline (schorl, NaFe²⁺₃Al₆(BO₃)₃Si₆O₁₈(OH)₄) inclusions

Quartz (Iron-stained)

Silicon Dioxide (SiO2) with Hematite/Limonite impurities

Quartz (likely a form of massive or vein quartz)

Quartz (SiO₂)

Milky Quartz with Hematite inclusions

Silicon Dioxide (SiO2)

Rose quartz

Quartz, SiO₂ (pink variety)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

SiO2

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Clear Quartz / Rose Quartz)

Silicon Dioxide (SiO2)

Included Quartz Beads (likely Phantom Quartz or Garden Quartz)

Quartz (SiO2) with various mineral inclusions

White tumbled stone (possibly milky quartz)

Likely quartz, SiO₂; exact identification is uncertain from the image

Milky quartz pebble

Quartz (silicon dioxide, SiO₂)

Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Tumbled white quartz pebble

Quartz (silicon dioxide, SiO₂)

Rutilated Quartz

SiO2 with TiO2 inclusions (Rutile)

Tumbled tourmalinated quartz

Quartz (SiO₂) with black tourmaline (schorl, NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄) inclusions

Gold Ore in Quartz

Auriferous Quartz (Au + SiO2)

Weathered quartz-rich rock, possibly milky quartz or quartz-bearing granite

Quartz (SiO₂), potentially with feldspar and iron-oxide staining

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite/Goethite inclusions

Quartz-bearing metamorphic rock, likely mica schist

Mica schist with quartz; commonly muscovite/biotite mica and SiO₂ quartz

Quartz on Schist

Silicon Dioxide (SiO2) on Foliated Metamorphic Rock

Tumbled pink quartz, likely dyed

Quartz (silicon dioxide, SiO₂), probably artificially colored chalcedony or milky quartz

Quartz pebble with iron inclusions

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Quartz with Pyrite inclusions

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)