Mineral (Specifically A Variety Of Chalcedony, Which Is A Microcrystalline Quartz)

Carnelian

Chalcedony (SiO₂)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Quartzite

Metamorphic rock primarily composed of Quartz (SiO2)

Red Sandstone (Iron-rich)

Ferruginous Sandstone (SiO2 with Iron Oxides)

Petrified Wood

Silicified Wood (primarily Quartz / Chalcedony: SiO2)

Amethyst

Quartz variety; chemical formula: SiO₂ (silicon dioxide) with Fe³⁺ impurities

Baroque Pearl

Biogenic Calcium Carbonate (Aragonite/Conchiolin)

Chert (specifically Jasper/Flint pebble)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Amazonite in Pegmatite Matrix with Smoky Quartz

K(AlSi3O8) - Microcline (var. Amazonite) with SiO2 (Quartz)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Petrified Wood (Silicified Wood)

Silicified Wood (primarily Chalcedony/Quartz, SiO2)

Sapphire

Corundum (Al2O3)

Ruby

Corundum (Al2O3 with Chromium trace elements)

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Petrified Wood

Fossilized wood / Silicified wood

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Clear Quartz Cluster

Silicon Dioxide (SiO2)

Chert (Yellow Jasper)

Microcrystalline Quartz (SiO2)

Blue Moss Agate / Blue Chalcedony

Silicon Dioxide (SiO2)

Red Jade (Dyed Quartzite)

Silicon Dioxide (SiO2) - variety Quartzite

Chert (concretionary/nodular variant)

Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions

Quartz (likely Jasper or Chert variety)

Quartz (SiO₂)

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Green Chert (Jasper)

Silicon Dioxide (SiO2)

Chert (specifically Blue Chert or Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (specifically Gray/Blue Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Septarian or Nodular variety)

Microcrystalline Quartz (SiO2)

Kyanite in Quartz

Kyanite (Al2SiO5) with Quartz (SiO2)

Carnelian (Red Agate/Chalcedony)

Cryptocrystalline Quartz (SiO2) with Hematite impurities

White Quartz

Silicon Dioxide (SiO2)

Chert Nodules

Chert (Silicon Dioxide, SiO2)

Dragon Stone (Dragon Blood Jasper)

Epidote with Pietersite or Red Jasper inclusions (varied SiO2 and Ca2(Al,Fe)3(SiO4)3(OH))

Aragonite (variety 'Flos Ferri')

Aragonite (CaCO3)

Citrine Quartz

Citrine (Silicon Dioxide - SiO2)

Concretionary Sandstone

Clastic Sedimentary Rock (Sandstone with secondary mineral cementation)

Conglomerate

Conglomerate (Detrital sedimentary rock)

Jasper

Silicon Dioxide (SiO2)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Chert (Chalcedony/Jasper)

Microcrystalline Quartz (SiO2)

Chert (with Quartz/Chalcedony)

Microcrystalline Quartz (SiO2)