Sedimentary (Artificial)

Green Quartz (likely Aventurine or Prasiolite)

Silicon Dioxide (SiO2) with inclusions

Red Tiger's Eye

SiO2 (Silicon Dioxide with iron inclusions)

Weathered sandstone

Quartz-rich clastic sandstone, chiefly SiO₂ with minor feldspar, lithic grains, and iron-oxide/clay cement

Aqua Aura Quartz

Titanium/Gold-coated Silicon Dioxide (SiO2)

Likely weathered quartz-rich rock fragment

Uncertain; possibly quartz sandstone or a pale feldspathic rock

Quartz (Citrine or Iron-Stained)

Silicon Dioxide (SiO2)

Dyed blue tumbled stone, likely howlite or magnesite

Howlite (Ca₂B₅SiO₉(OH)₅) or magnesite (MgCO₃), artificially dyed blue

Gray sandstone or weathered volcanic rock

Likely quartz-rich sandstone; exact identification is uncertain from the image alone

Red coral (likely precious coral)

Corallium sp.; calcium-carbonate skeleton, primarily calcite

Tumbled dark stone, possibly river pebble or hematite

Uncertain; candidates include hematite (Fe₂O₃), basalt, or dark chert

Tumbled chert or jasper pebble

Microcrystalline quartz (SiO₂), commonly called chert; opaque varieties are jasper

Gold Leaf in Glass Vial

Gold (Au)

Unidentified dark pebble

Undetermined; possibly polished basalt, chert, or iron-rich stone

Prasiolite (Green Quartz)

Silicon Dioxide (SiO2) with iron impurities

Dyed Pink Quartzite (Jadeite Simulant)

Silicon Dioxide (SiO2) with organic dye

Dyed Agate

Silicon Dioxide (SiO2)

Pink Anthracite Coal (dyed)

Anthracite Coal (Artificially Colored)

Pink Jade (Dyed Quartzite)

Silicon Dioxide (SiO2) - primarily Quartzite or Quartz

Wood Paneling

Engineered Wood / Plywood Paneling

Purple Dyed Dalmatian Stone

Dyed Peralkaline Trachyte

Quartz Geodes and Crystal Clusters

Silicon Dioxide (SiO2)

Leopard skin jasper (orbicular jasper)

Microcrystalline quartz (SiO₂), commonly with iron-oxide and other silicate inclusions

Pink Dyed Agate

Silicon Dioxide (SiO2) - Variety Agate

Dyed Agate

Silicon Dioxide (Chalcedony), SiO2

Sandstone (Nut-stone / Cup-stone artifact)

Quartz Arenite / Worked Sedimentary Rock

Dragon Vein Agate

Silicon dioxide / Chalcedony (with heat/dye treatment) SiO2

Dalmation Stone (Dyed)

Peralkaline rhyolite

Dyed Blue Quartz

Silicon Dioxide (SiO2) with artificial pigment

Blue Dyed Agate Slice

Silicon Dioxide (SiO2) with artificial pigment

Blue Quartz (Dyed)

Silicon Dioxide (SiO2) with artificial pigment

Dyed Agate Slice

Microcrystalline Quartz (SiO2) with artificial pigment

Blue Onyx (Dyed Agate/Chalky Chalcedony)

Silicon Dioxide (SiO2) with artificial pigment

Dyed Quartz (imitating Emerald/Green Quartz)

Silicon Dioxide (SiO2) with artificial pigment

Dyed Agate

Silicon Dioxide (SiO2) with artificial pigment

Blue Agate (Dyed)

Silicon Dioxide (SiO2) with artificial pigment

Man-made Green Quartz (Lab-grown or Treated)

Silicon Dioxide (SiO2) with artificial coloration

Slag (Industrial Glass/Metal Waste)

Artificial silicate/ferro-silicate byproduct

Pink Tumbled Agate (Dyed)

Silicon Dioxide (SiO2) with artificial dyes

Dyed Dragon Vein Agate

Silicon Dioxide (SiO2) with artificial pigment

Dyed Quartz (often sold as 'Blue Quartz' or 'Blue Agate')

Silicon Dioxide (SiO2) with artificial pigment

Dyed Quartz / Rose Quartz Imitation

Silicon Dioxide (SiO2) with artificial pigment

Red Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with Fe2O3 inclusions)