Quartz (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Category
Industrial Byproduct (Anthropogenic Rock)
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Sandstone with Iron Staining
Arenite (SiO2 with FeO(OH) impurities)
sedimentary
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Red Sandstone
Arenite (typically with iron oxide/hematite cement)
sedimentary
Diamond (faceted)
Carbon (C)
gemstone
Quartzite Pebble
Quartzite
metamorphic
Diamond
Carbon (C)
gemstone
Diamond / Clear Quartz / Glass paste
Carbon (Diamond) / Silicon Dioxide (Quartz)
gemstone
Diamond (Cut Gemstone)
Carbon (C)
gemstone
Orange Quartz (or Citrine Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz Nut
SiO2 (Silicon Dioxide)
mineral health
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese
mineral
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Diamond
Carbon (C)
gemstone
Diamond
C (Carbon)
gemstone
Quartzite (Milky or Cloudy Quartz variant)
Silicon Dioxide (SiO2)
metamorphic
Red Sandstone
Ferruginous Sandstone (SiO2 with Iron Oxide)
sedimentary
Agate
Chalcedony (Cryptocrystalline variety of Quartz, SiO2)
mineral
Quartz Pebble (Water-Worn)
Silicon Dioxide (SiO2)
mineral
Quartzite with inclusions
Quartzite (SiO2)
metamorphic
Anthracite Coal
Anthracite
metamorphic
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
mineral
Bumblebee Jasper
Fibrous Calcite with Arsenic and Sulfur inclusions
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Peridot (Olivine)
Olivine, (Mg, Fe)2SiO4
mineral
Garnet (Almandine variety)
Almandine, Fe3Al2(SiO4)3
Mineral
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
mineral
Mica Schist with Garnet inclusions
Mica Schist (primarily Muscovite and Biotite - KAl2(AlSi3O10)(OH)2)
metamorphic
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Garnet
Garnet group: X3Y2(SiO4)3 (commonly Almandine-Pyrope series)
mineral
Chert (var. Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Jasper containing Agate (Jaspagate)
Silicon Dioxide (SiO2)
sedimentary
Diamond (in a jewelry setting)
Carbon (C)
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Cubic Zirconia (as used in jewelry setting)
Zirconium dioxide (ZrO2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Garnet in Schist (Polished Tower)
Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist
metamorphic
Milky Quartz Pebble
Silicon dioxide (SiO2)
mineral
Diamond
Diamond (C)
mineral
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Gold-bearing Quartz
Lode Gold in Silicon Dioxide (SiO2)
mineral