Quartz

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Rose Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz (Smoky/Milky Pebble)

Silicon Dioxide (SiO2)

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide (Hematite/Limonite) inclusions

Quartz (Engineered Stone Countertop)

Silicon Dioxide (SiO2) within a resin matrix

Quartz

Quartz (SiO₂)

Quartz (likely) or a Quartzite Pebble

Silicon dioxide (SiO2) for quartz. If it's quartzite, it's a metamorphic rock primarily composed of quartz.

Garnet Schist or Garnet-bearing Quartzite

Metamorphic rock containing Almandine Garnet (Fe3Al2(SiO4)3) and Quartz (SiO2)

Quartz with Mica (Micaceous Quartz)

Silicon Dioxide (SiO2) with Phyllosilicates

Smoky Quartz with Siderite and Pyrite

Silicon Dioxide (SiO2) with Ferrous Carbonate (FeCO3) and Iron Sulfide (FeS2)

Rutilated Quartz

Quartz (SiO2) with Rutile (TiO2) inclusions

Rutilated Quartz

Silicon Dioxide with Titanium Dioxide (SiO2 with TiO2 inclusions)

Clear Quartz

Silicon Dioxide (SiO2)

Ferruginous Quartz

Silicon Dioxide with Hematite/Limonite impurities (SiO2 + Fe2O3)

Quartz (in matrix)

Quartz (SiO₂)

Milky Quartz

Quartz (Silica / Silicon Dioxide - SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz (Milky or Smoky variety)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Clear Quartz

Silicon Dioxide (SiO2) / Rock Crystal

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Milky Quartz with Mineral Inclusions

Silicon Dioxide (SiO2) with miscellaneous inclusions

Milky Quartz with Mineral Inclusions

Quartz (Silicon Dioxide, SiO2)

Smoky Quartz

Smoky Quartz (Silicon Dioxide, SiO2)

Milky Quartz with Inclusions

Quartz (Silicon Dioxide, SiO2)

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Beaded Jewelry (Assorted Gemstones)

Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ

Granite

Granite (a plutonic igneous rock composed of quartz, feldspar, and mica)

Quartz

Quartz (SiO2, Silicon Dioxide)

Quartz (Smoky/Milky variant)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (variety of colors)

SiO2 (Silicon Dioxide)

Quartzite

Quartzite (primarily SiO2)

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Quartzite (Ferruginous)

Recrystallized Quartz (SiO2) with Iron Oxide inclusions