Mineralish (Variety Of Chalcedony)

Red Jasper

Silicon dioxide (SiO2) with iron oxide inclusions

Yellow Jasper

Silicon Dioxide (SiO2) with iron hydroxides

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Banded Calcite (often sold as 'Mexican Onyx' or 'Calcite Onyx')

Calcite (Calcium Carbonate, CaCO3)

Yellow Agate

Silicon Dioxide (SiO2)

Tumbled carnelian

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

Tumbled Agate

Silicon Dioxide (SiO2)

Banded Calcite (often sold as Orange Onyx or Mexican Onyx)

Calcium Carbonate (CaCO3)

Jasper (Green)

Silicon dioxide (SiO2)

Banded Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

Jasper

Jasper (Silicon Dioxide, SiO2)

Red Jasper

Silicon Dioxide (SiO2) with Ferric Iron inclusions

Jasper

Silicon dioxide (SiO2)

Jasper (Iron-stained Quartzite/Chert)

Silicon Dioxide (SiO2) with iron oxide inclusions

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Yellow Jasper

Tectosilicates (SiO2) with Goethite/Iron oxide inclusions

Green Jasper

Silicon Dioxide (SiO2) with iron silicate inclusions

Red Jasper (possibly Orbicular)

Silicon Dioxide (SiO2) with iron oxide inclusions

Banded Agate (Chert/Chalcedony)

Silicon Dioxide (SiO2)

Yellow Jasper

Silicon Dioxide (SiO2) with iron hydroxides

Jasper

Silicon dioxide (SiO2) with impurities

Yellow Jasper

Jasper (Silicon Dioxide, SiO2)

Agate

Chalcedony (SiO2) with impurities

Polished agate or chalcedony pebble

Microcrystalline quartz, SiO₂ (chalcedony; exact identification uncertain from the image)

Dyed agate slice

Microcrystalline quartz (SiO₂), typically banded chalcedony

Polished jasper pendant

Jasper, an opaque microcrystalline variety of quartz (SiO₂), likely brecciated or patterned jasper

Tumbled red-brown stone, possibly carnelian

Likely chalcedony (microcrystalline quartz, SiO₂); identification from the image is uncertain

Polished banded agate

Banded chalcedony, microcrystalline quartz (SiO₂)

Tumbled jasper (likely brecciated or red jasper)

Jasper, microcrystalline quartz (SiO₂) with iron-oxide inclusions

Banded Calcite

CaCO3

Polished red jasper (likely brecciated or orbicular jasper)

Jasper, microcrystalline quartz (SiO₂) with iron-oxide inclusions

Polished carnelian (likely)

Carnelian, a reddish-orange cryptocrystalline quartz variety; SiO₂

Polished carnelian (likely)

Cryptocrystalline quartz, SiO₂; orange chalcedony, commonly called carnelian

Tumbled reddish-brown stone, possibly jasper or quartzite

Uncertain; likely microcrystalline quartz (SiO₂), potentially iron-stained jasper

Tumbled banded agate

Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other trace-coloring inclusions

Tumbled carnelian and related stones

Carnelian: orange-red chalcedony, microcrystalline SiO₂; the dark central piece may be hematite- or jasper-rich material

Iron-stained jasper/chert fragment

Microcrystalline quartz (SiO₂), likely hematite/goethite-bearing jasper

Carnelian (orange chalcedony)

Microcrystalline quartz, SiO₂; chalcedony colored mainly by iron oxides

Green Jasper

Silicon Dioxide (SiO2) with iron silicate inclusions

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite inclusions

Banded Jasper

Silicon Dioxide with Iron Oxide impurities (SiO2)