Sedimentary (If Natural Jasper) Or Artificial (If Slag)

Blue-dyed Quartz Druzy

Silicon Dioxide (SiO2) with artificial pigment

Tumbled blue-dyed stone, likely basalt or blue aventurine

Likely fine-grained basalt (plagioclase and pyroxene), possibly coated or dyed; exact identification requires testing

Agate (Dyed) or composite stone

SiO2

Dyed Quartz Pendant

Silicon Dioxide (SiO2) with artificial dye

Green Agate

Silicon Dioxide (Chalcedony), SiO2

Dyed Blue Agate

Silicon Dioxide (SiO2) with artificial pigment

Titanium-Coated Hematite (Aura Hematite)

Titanium-bonded Hematite (Fe2O3 with a Ti coating)

Dyed Blue Agate

Silicon Dioxide (SiO2)

Tumbled amethyst

Amethyst, purple variety of quartz (SiO₂)

Blue Agate Geode Slice

Silicon Dioxide (SiO2) - Chalcedony variety

Dyed Agate

Silicon Dioxide (Chalcedony with artificial colorant), SiO2

Prasiolite

Silicon Dioxide (SiO2)

Dyed Agate Slice

Silicon Dioxide (SiO2) - Chalcedony variety

Polished breccia-like rock specimen

Likely polymictic breccia or brecciated jasper, with quartz-rich fragments

Dyed howlite (turquoise imitation)

Howlite, Ca₂B₅SiO₉(OH)₅; commonly blue-dyed

Sea Glass

Man-made silicate glass

Dyed Agate Slice

Silicon Dioxide (SiO2) with artificial dyes

Possible slag or basalt fragment

Indeterminate dark mafic material; likely basalt (plagioclase–pyroxene) or industrial iron-rich slag

Likely iron-rich slag or weathered ironstone

Hematite–goethite-rich material (Fe₂O₃/FeO(OH)); possibly industrial iron slag

Dyed Agate Geode

Silicon Dioxide (SiO2) - Chalcedony variety

Blue Topaz

Al2SiO4(F,OH)2

Pink Dyed Agate

Silicon Dioxide (SiO2) with artificial pigment

Quartz (Citrine or Iron-Stained)

Silicon Dioxide (SiO2)

Concrete aggregate surface

Human-made cementitious composite; primarily calcium-silicate-hydrate cement with mixed silicate aggregate

Dyed Pink Agate (or Dyed Quartzite)

Silicon dioxide (SiO2) with artificial pigment

Dyed Purple Agate Sliced Tablet

Silicon Dioxide (SiO2), variety Chalcedony

Painted River Rock

Artificially Coated Sedimentary Rock

Concrete

Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)

Polished black-and-brown river pebble

Likely altered basalt or hornfels; exact identification requires testing

Not a rock, mineral, or geological specimen

Crackle Agate / Dyed Quartz

SiO2 (Silicon Dioxide)

Green chalcedony (likely dyed or treated)

Chalcedony, microcrystalline quartz (SiO₂)

Dyed Halite

Sodium Chloride (NaCl)

Porous iron-rich rock or slag-like material

Unidentified; possibly limonite/goethite-rich ironstone

Dyed turquoise-colored howlite or magnesite (likely imitation turquoise)

Howlite: Ca₂B₅SiO₉(OH)₅; magnesite: MgCO₃

Pickled Dragon Eggs (Fictional Interpretation: Purple Agate or Amethyst Geodes)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Dyed Quartz Geode

Silicon Dioxide (SiO2) with artificial pigment

Asphalt (Bituminous pavement fragment)

Artificial conglomerate / Bitumen-Aggregate mixture

Dyed Howlite (Turquenite)

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Dyed Quartz Crystal

Silicon Dioxide (SiO2) with artificial pigment

Green Quartz (likely Aventurine or Prasiolite)

Silicon Dioxide (SiO2) with inclusions

Red Tiger's Eye

SiO2 (Silicon Dioxide with iron inclusions)