Quartz

Quartz (Smoky/Milky Variety)

Silicon Dioxide (SiO2)

Quartz (Milky/Smoky Quartz)

Silicon Dioxide (SiO2)

Quartz (Clear or Rose Quartz)

Silicon Dioxide (SiO2)

Quartz-rich rock fragment

Likely milky quartz with feldspar and possible mica; exact rock type is indeterminate from the image

White quartz geode nodule

Quartz (SiO₂), likely a quartz-lined geode or vug in a host rock

Tumbled white quartz pebble

Quartz (silicon dioxide, SiO₂)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Colorless faceted gemstone, likely glass or quartz

Uncertain; appearance is consistent with faceted quartz (SiO₂), but cut glass or cubic zirconia cannot be excluded from the photograph

Milky quartz (likely rose quartz)

Quartz, silicon dioxide (SiO₂), commonly varietal rose quartz

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Rounded chalcedony or milky quartz pebble

Microcrystalline silica, SiO₂ (chalcedony/quartz)

Dumortierite Quartz

Dumortierite (Al7BO3(SiO4)3O3) within Quartz (SiO2)

Tumbled rose quartz

Quartz, silicon dioxide (SiO₂), pink variety

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

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz Pebble

Crystalline Silicon Dioxide (SiO2)

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Quartz with Hematite

Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)

Cloudy Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Colorless faceted gemstone, likely quartz

Quartz (SiO₂), tentative identification; the photo is insufficient to confirm the material

Quartz with Chalcopyrite (or Pyrite)

Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)

Fluorite with Quartz

Fluorite (CaF2) and Quartz (SiO2)

Geode fragment, likely quartz-lined basalt or chalcedony nodule

Microcrystalline quartz (SiO₂), possibly with iron-oxide staining in a basaltic host

Tumbled quartz fragments, likely rose quartz

Quartz (silicon dioxide, SiO₂), possibly iron- or titanium-tinted rose quartz

White Quartz Pebble

Quartz (Silicon Dioxide, SiO2)