Sedimentary (Chemically Precipitated Mineral)

Mookaite Jasper

Radiolarite (Silica-rich sedimentary rock featuring Hematite and Goethite)

Quartzite

Quartzite (Primary mineral: SiO2)

Banded Chert

Cryptocrystalline Quartz (SiO2)

Muscovite Mica (in Quartz matrix)

Potassium aluminum silicate hydroxide fluoride (KAl2(AlSi3O10)(F,OH)2)

Apatite

Apatite Group (e.g., Fluorapatite Ca5(PO4)3F, Chlorapatite Ca5(PO4)3Cl, Hydroxylapatite Ca5(PO4)3(OH))

Banded Agate (Carnelian type)

Agate (Cryptocrystalline Quartz, SiO2)

Fire Agate

SiO2 (Silicon Dioxide with Iron Oxide inclusions)

Diamond (in a jewelry setting)

Carbon (C)

Chert Nodule (River Cobble)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Quartz (River Cobble)

Silicon Dioxide (SiO2)

Ferruginous Quartz

Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions

Microcrystalline Limestone Pebble

Carbonate sedimentary rock (Calcium Carbonate, CaCO3)

Aura Rose Quartz

SiO2 (Silicon Dioxide with Titanium/Gold coating)

Quartz (specifically Milky or Clear Quartz)

Silicon Dioxide (SiO2)

Quartz (Crystal Point/Fragment)

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Rough Quartz (likely Rose or Amethyst variety)

Silicon Dioxide (SiO2)

Milky Quartz (Water-worn Pebble)

Silicon Dioxide (SiO2)

White Sapphire

Corundum (Al2O3)

Quartzite

Quartzite (composed primarily of Quartz, SiO2)

Quartzite

Quartzite (SiO2)

Quartzite

Quartzite (SiO2)

Green Quartzite (Aventurine variety)

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Yellow Quartzite (River Pebble)

Quartzite (SiO2)

Soapstone

Steatite (composed primarily of Talc: Mg3Si4O10(OH)2)

Cubic Zirconia (Diamond Simulant)

Zirconium Dioxide (ZrO2)

Dyed Howlite (often sold as 'Turquenite')

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble

Crystalline Silicon Dioxide (SiO2)

Quartzite

Quartzite (primarily SiO2)

Quartzite (or Ferruginous Quartzite)

Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 impurities)

Chert (variations include Flint or Jasper)

Silicon Dioxide (SiO2)

Chert (Black Chert/Flint)

Silicon Dioxide (SiO2)

Banded Chert (Ironstone/Jasper)

Cryptocrystalline Quartz (SiO2) with Iron Oxides

Chert (Yellow Jasper variant)

Microcrystalline Quartz (SiO2)

Chert (specifically Tan/Yellow Chert)

Chert (Microcrystalline or Cryptocrystalline Silica, SiO2)

Dyed Quartz (often sold as 'Blue Quartz' or 'Blue Agate')

Silicon Dioxide (SiO2) with artificial pigment

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Angel Aura Quartz (Treated Clear Quartz)

Silicon Dioxide (SiO2) coated with Vaporized Silver and Platinum

Titanium Aura Quartz

Titanium bonded Silicon Dioxide (SiO2 + Ti)

Tiger's Eye (Rough)

Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)