Angel Aura Quartz (Treated Clear Quartz)
Silicon Dioxide (SiO2) coated with Vaporized Silver and Platinum
mineral
Category
Man Made Object (Ring)
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Chert (Grey-Green Flint)
Microcrystalline silicon dioxide (SiO2)
sedimentary
Carnelian
Silicon Dioxide (Chalcedony variety), SiO2
gemstone
Carnelian Agate
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Carnelian Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Carnelian
Carnelian Chalcedony (SiO2 with Hematite impurities)
mineral
Carnelian / Chalcedony
Cryptocrystalline Quartz (SiO2)
mineral
Carnelian (Orange Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Carnelian Agate
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Red Quartz (Carnelian/Red Jasper Agate)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Carnelian (Banded Agate)
Carnelian Chalcedony (SiO2)
mineral
Carnelian
Carnelian (SiO2 - Silicon Dioxide with Iron Oxide impurities)
mineral
Desert Rose (Barite Rose / Gypsum Rose)
Barium Sulfate (BaSO4) or Hydrous Calcium Sulfate (CaSO4%22H2O)
mineral
Carved quartz (likely rose quartz and green aventurine/quartz)
Quartz, silicon dioxide (SiO₂); green material may be aventurine quartz or serpentine
gemstone
Sandstone (specifically Banded Sandstone)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
mineral
Chert (River Pebble with Liesegang Rings)
Microcrystalline Silicon Dioxide (SiO2)
sedimentary
Carnelian (Tumbled Pebble)
Quartz (Variety: Carnelian, SiO2)
gemstone
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Carnelian (Chalcedony)
SiO2 (Silicon Dioxide - Microcrystalline Quartz)
mineral
Carnelian Agate
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Carnelian Agate
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, SiO2)
fossil
Banded Sandstone (River Pebble)
Arenite (SiO2 primarily)
sedimentary
Carnelian
Carnelian (Chalcedony/Quartz, SiO2)
mineral
Carnelian
Carnelian (Microcrystalline Quartz, SiO2 with Fe2O3 impurities)
mineral
Carnelian (Carnelian Agate)
Silicon dioxide (SiO2) - a variety of Chalcedony
mineral
Carnelian Agate
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Chalcedony (Quartz variety)
Silicon Dioxide (SiO2)
mineral
Petrified Wood
Silicified wood (primarily Silicon Dioxide, SiO2)
sedimentary
Carnelian
Carnelian (SiO2)
mineral
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
mineral
Sandstone (Ferruginous)
Arenite (Siliclastic Sedimentary Rock)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Yellow Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Carnelian Agate
Silicon Dioxide (SiO₂)
mineral
Carnelian
SiO2 (Silicon Dioxide) - Translucent Chalcedony
mineral
Tumbled goldstone-like quartz pebble
Likely iron-stained quartz or jasper; exact identification requires testing
mineral
Tumbled green jasper (probable)
Jasper, opaque microcrystalline quartz (SiO₂), colored by iron and other impurities
mineral
Tumbled brown jasper (likely iron-rich chalcedony)
Jasper, opaque microcrystalline quartz (SiO₂), commonly colored by iron oxides
mineral
Dalmatian jasper
Orbicular microcrystalline quartz rock, commonly rhyolitic or volcanic-feldspar matrix with black arfvedsonite/alkali-amphibole inclusions
igneous
Tumbled amethyst
Quartz, silicon dioxide (SiO₂), purple variety colored mainly by iron impurities and irradiation
mineral