Mineralish (Variety Of Chalcedony)

Tumbled quartz-rich chalcedony (likely carnelian or orange jasper)

Microcrystalline quartz, SiO₂, colored mainly by iron oxides

Tumbled chalcedony and agate

Microcrystalline quartz (SiO₂), chiefly chalcedony with possible quartz/agate banding

Polished/tumbled agate or chert

Microcrystalline quartz (SiO₂), likely chalcedony with opaque impurities

Polished brecciated jasper

Silica-rich microcrystalline quartz/chalcedony (SiO₂), with iron-oxide staining and angular mineral fragments

Tumbled banded agate (likely carnelian or sardonyx)

Microcrystalline quartz, SiO₂ (chalcedony with iron-oxide banding)

Tumbled brown jasper

Microcrystalline quartz (SiO₂), commonly with iron-oxide impurities

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Red Jasper (River Pebble)

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper (Chert)

Silicon Dioxide (SiO2)

Banded Jasper

Silicate Mineral (Microcrystalline Quartz / SiO2)

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper with Iron Oxides

Silicon Dioxide (SiO2) with Fe2O3 inclusions

Dalmatian Jasper (Dalmatian Stone)

Perthitic Feldspar with Arfvedsonite/Riebeckite

Dalmatian Jasper

Peralkaline Quartz-Feldspar Rock with Arfvedsonite

Jasper with Quartz Vein

Silicon Dioxide (SiO2)

Red jasper pebble

Jasper, microcrystalline quartz (SiO₂) colored by iron oxides

Jasper

Microcrystalline Quartz (SiO2)

Iron-rich chert or jasper

Microcrystalline quartz (SiO₂), commonly colored by hematite/goethite

Tumbled jasper pebble (likely ocean jasper or brecciated jasper)

Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions

Tumbled carnelian/chalcedony

Microcrystalline quartz (SiO₂), iron-oxide-stained chalcedony

Red jasper cabochon pendant

Jasper—opaque microcrystalline quartz/chalcedony, primarily SiO₂, colored red by iron oxides

Tumbled yellow jasper

Microcrystalline quartz (chalcedony), SiO₂, colored by iron oxides

Dyed agate (likely dyed chalcedony)

Microcrystalline quartz, SiO₂ (chalcedony/agate)

Tumbled amber-colored chalcedony (likely carnelian)

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

Small orange-red tumbled gemstones, likely carnelian

Carnelian, a microcrystalline variety of quartz (SiO₂), typically colored by iron oxides

Orange chalcedony or jasper fragment

Microcrystalline quartz (SiO₂), likely chalcedony/jasper

Jasper / Yellow Chalcedony Pebble

Silicon Dioxide (SiO2)

Carnelian (Orange Chalcedony)

Silicon Dioxide (SiO2)

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Yellow Banded Agate

Silicon Dioxide (SiO₂)

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Red Jasper

Red Jasper (SiO2) with Hematite inclusions

Green Jasper

Silicon Dioxide (SiO2) with impurities of iron(II) silicate

Jasper

Silicon dioxide (SiO2) with iron oxide impurities

Jasper

Jasper (Silicon Dioxide, SiO2)

Red Jasper

Silicon dioxide (SiO2)

Red Jasper (Chert)

Silicon Dioxide (SiO2) with iron inclusions

Agate

Silicon Dioxide (SiO2)

Tumbled banded jasper, likely brecciated jasper

Microcrystalline quartz (SiO₂) with iron-oxide and clay inclusions

Riverstone Jasper (Chert variant)

Silicon Dioxide (SiO2) with impurities

Red Jasper (Quartz)

Silicon Dioxide (SiO2) with Iron impurities

Jasper

Silicon dioxide (SiO2)