Quartz

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Quartz Pebble

Crystalline Silicon Dioxide (SiO2)

Quartz with Orthoclase Feldspar

Silicon Dioxide (SiO2) with Potassium Aluminum Silicate (KAlSi3O8)

Quartz (Milky or Druzy Quartz)

Silicon Dioxide (SiO2)

Mixed Mineral Collection (with Quartz, Beryl, and host rock)

Silicon Dioxide (Quartz), Be3Al2Si6O18 (Beryl), and associated Schist/Pegmatite

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Red Jasper with Quartz Veining

Jasper (Silicon Dioxide, SiO2) with Quartz (SiO2) inclusions

Rose Quartz and Milky Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Pink Tourmaline in Quartz

Elbaite [Na(Li,Al)3Al6(BO3)3Si6O18(OH)4] in Quartz [SiO2]

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) within Metasedimentary or Igneous matrix

Sandstone (Ferruginous)

Arenite with Iron oxide staining (SiO2 with Fe2O3)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Biotite on Quartz

Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2) and Quartz (SiO2)

Quartz in Matrix

Silicon Dioxide (SiO2)

Sandstone (Quartz-rich)

Arenite (primarily SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Chert (with Quartz)

Microcrystalline Quartz (SiO2)

Druzy Chalcedony (Agate Geode)

Silica (SiO2) - Cryptocrystalline Quartz with druzy macrocrystalline quartz

Quartz (Milky/Clear Quartz)

Silicon Dioxide (SiO2)

Pink Quartzite

Quartzite (primarily SiO2 with trace impurities of iron oxides)

Quartz (Milky or White Quartz)

Silicon Dioxide (SiO2)

Quartz / Quartzite

Silicon Dioxide (SiO2)

Yellow Aventurine (specifically a carved crescent moon)

Silicon Dioxide (SiO2) with inclusions

Quartz (Small Fragment)

Silicon Dioxide (SiO2)

Quartz (Milky/Clear)

Silicon Dioxide (SiO2)

Quartz (Milky/Crystalline fragment)

Silicon Dioxide (SiO2)

Chert (Grey-Green Var.)

Silicon Dioxide (SiO2)

Citrine Quartz

Silicon Dioxide (SiO2)

Dearest Ring (Gemstones)

Mixed Gemstones: Diamond (C), Emerald (Be3Al2Si6O18), Amethyst (SiO2), Ruby (Al2O3), Sapphire (Al2O3), Topaz (Al2SiO4(F,OH)2)

Pietersite

Silicolite (brecciated tiger's eye with hawk's eye)

Yellow Aventurine

Silicon Dioxide (SiO2) with inclusions

Quartz (Milky Quartz pebble)

Silicon Dioxide (SiO2)

Granitic Pegmatite

Granite (with coarse-grained Quartz, Feldspar, and Mica components)

Quartzite

Quartzite (primarily SiO2)

Smoky Quartz (Faceted Beads)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)