Mineral (Cryptocrystalline Quartz)

Jasper (Iron-rich Chert)

Silicon Dioxide (SiO2) with impurities of Hematite or Goethite

Jasper containing fossilized inclusions

Silicon Dioxide (SiO2) with trace impurities and biogenic inclusions

Milky Quartz (Water-worn Pebble)

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Rough Quartz (or Quartzite pebble)

Silicon Dioxide (SiO2)

Pink Quartz (Inclusion-filled)

Silicon Dioxide (SiO2)

Cloudy Quartz / Quartz Tumble

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Smoky Quartz variant)

Silicon Dioxide (SiO2)

Ferruginous Quartz

SiO2 (Silicon Dioxide) with Iron Oxide inclusions (FeO(OH) / Fe2O3)

Quartz (likely Milky Quartz)

Quartz (SiO₂ - Silicon Dioxide)

Amethyst and Peridot

Amethyst (SiO2 with iron impurities) and Peridot ((Mg, Fe)2SiO4)

Quartz Crystal

Quartz (SiO₂)

Quartz (Pebble)

Quartz (SiO₂)

Geode (Chert or Quartz Nodule)

Silicon Dioxide (SiO2)

Red Jasper (River Siltstone)

Silicon Dioxide (SiO2) with iron oxide inclusions

Quartz (Clear Quartz and Rose Quartz variants)

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Banded Agate (specifically Botryoidal/Orbicular Agate)

Silicon Dioxide (SiO2)

Aura Quartz (Pink/Rose Aura Quartz)

Silicon Dioxide (SiO2) bonded with Platinum and/or Silver

Quartz (Milky or Smoky variety)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Clear Quartz

Silicon Dioxide (SiO2) / Rock Crystal

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Milky Quartz with Inclusions

Quartz (Silicon Dioxide, SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) within Sedimentary or Igneous Matrix

Quartz Vein (Iron-stained)

Silicon Dioxide (SiO2) with limonite/hematite staining

Smoky Quartz and Clear Quartz Geode

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz (Milky/Rose variety)

Silicon Dioxide (SiO2)

Tourmalinated Quartz

Quartz (SiO2) with included Tourmaline (complex borosilicate)

Quartz (Quartzite Pebble)

Silicon Dioxide (SiO2)

Orange Quartz with Hematite inclusions

Quartz (SiO2) with Hematite (Fe2O3) inclusions

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Orange Quartz with Epidote

Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate hydroxide (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))