Mineralish (Variety Of Chalcedony)

Red Jasper

Jasper (Silicon Dioxide, SiO2 with Iron Oxide impurities)

Red Jasper

Jasper (Silicon Dioxide, SiO2)

Red Jasper (with inclusions)

Silicon Dioxide (SiO2) with Hematite impurities

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Jasper (Red/Yellow)

Silicon Dioxide (SiO2) with impurities

Grey Agate (Tumbled)

Silicon Dioxide (SiO2)

Red Jasper

Silicon Dioxide (SiO2) with Hematite (Fe2O3) impurities

Banded Calcite (often sold as 'Mexican Onyx')

Calcite (Calcium Carbonate, CaCO3)

Brown Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

Red Jasper

Jasper (Silicon Dioxide, SiO2)

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Red Jasper

Quartz (Silicon Dioxide) with Hematite inclusions, SiO2

Red Jasper

Silicon Dioxide (SiO2) with Iron inclusions

Jasper

Jasper (Silicon Dioxide, SiO2)

Red Jasper (possibly with Quartz or Hematite)

Silicon Dioxide (SiO2) with iron oxide impurities

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Yellow Jasper

Silica (Silicon Dioxide, SiO2) with iron inclusions

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

Tumbled brown chalcedony or jasper

Microcrystalline quartz, SiO₂; possibly iron-bearing jasper

Banded Agate

Chalcedony (SiO2) with impurities

Polished carnelian or red jasper

Cryptocrystalline quartz (chalcedony), SiO₂; possibly iron-rich jasper

Yellow chalcedony (likely tumbled quartz)

Chalcedony, cryptocrystalline SiO₂; possibly iron-stained quartz or yellow jasper

Tumbled orange chalcedony (likely carnelian)

Microcrystalline quartz, SiO₂; orange-red variety commonly called carnelian

Polished tiger-eye jasper / iron-rich jasper

Quartz-rich jasper (microcrystalline SiO₂) with iron oxides, likely hematite/goethite and magnetite

Red jasper

Microcrystalline quartz (SiO₂), colored mainly by iron oxides

Likely weathered jasper or iron-rich chert

Microcrystalline quartz (SiO₂), with iron-oxide staining

Tumbled carnelian/chalcedony (likely)

Cryptocrystalline quartz, SiO₂; iron-oxide–colored chalcedony

Polished carnelian-bearing chalcedony (orange agate)

Microcrystalline quartz, SiO₂; chalcedony with iron-oxide coloration

Tumbled jasper or chalcedony

Microcrystalline quartz, SiO₂; likely opaque jasper with chalcedonic zones

Tumbled jasper or chert

Microcrystalline quartz (SiO₂), likely iron-stained jasper

Yellow-brown jasper (likely iron-stained chert)

Microcrystalline quartz (SiO₂), varieties of chalcedony/chert colored by iron oxides

Tumbled yellow jasper or chert

Microcrystalline quartz (SiO₂), likely iron-oxide-stained chalcedony/chert

Tumbled carnelian

Chalcedony (microcrystalline quartz), SiO₂, colored by iron oxides

Polished blue-gray agate/geode slice (tentative)

Microcrystalline quartz (chalcedony), SiO₂, possibly with druzy quartz

Orange tumbled stone, likely carnelian

Carnelian: orange-red microcrystalline quartz, SiO₂ (chalcedony)

Red-and-blue jasper (likely ocean jasper or dyed/polished jasper)

Microcrystalline quartz, chiefly SiO₂; jasper is an opaque chalcedony variety colored by iron oxides and other impurities

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities

Chert Pebble (Jasper variety)

Silicon Dioxide (SiO2)

Red Jasper

Microcrystalline Quartz (SiO2) with Hematite inclusions

Jasper

Silicon Dioxide (SiO2) with impurities

Dyed Dragon Vein Agate

Silicon Dioxide (SiO2) with artificial pigment

Jasper pebble

Silicon Dioxide (SiO2) with iron oxide impurities