Sedimentary (Artificial)

Copper-bearing sulfide ore, likely chalcopyrite with iron oxides

Chalcopyrite (CuFeS₂), possibly associated with bornite (Cu₅FeS₄), pyrite, and limonite/goethite

Tumbled greenstone or serpentine pebble

Likely serpentinite, composed mainly of serpentine-group minerals (antigorite/lizardite); identification is uncertain from the image alone

Clear quartz crystal point

Quartz (silicon dioxide, SiO₂), likely a polished or cut crystal

Polished black-and-gold mineral fragment, likely chalcopyrite

Chalcopyrite (CuFeS₂), possibly tarnished or coated

Unknown metallic sulfide-bearing rock, possibly chalcopyrite or bornite

Tentative: chalcopyrite (CuFeS₂) or bornite (Cu₅FeS₄)

Orange chalcedony or weathered quartz pebble

Microcrystalline quartz, SiO₂; possibly iron-oxide-stained chalcedony

Scoria (vesicular volcanic rock)

Basaltic scoria; chiefly plagioclase, pyroxene, olivine, and volcanic glass

Rose Quartz

Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese

Citrine quartz crystal

Quartz, silicon dioxide (SiO₂); yellow variety commonly called citrine

Blue Dyed Agate Geode (Slice)

Silicon Dioxide (SiO2) - Chalcedony / Quartz

Dyed Agate Geode Slice

Silicon Dioxide (SiO2)

Blue Quartzite (Dyed)

Metamorphosed Quartz-rich Sandstone (SiO2 with organic dye)

Glass

Amorphous Silicon Dioxide (SiO2)

Green aventurine (likely dyed quartzite)

Quartzite, predominantly quartz (SiO₂), colored by fuchsite mica or artificial dye

Green Tiger's Eye

Silicon dioxide with crocidolite inclusions (SiO2)

Turquoise-colored stone bead necklace

Likely turquoise (CuAl₆(PO₄)₄(OH)₈·4H₂O), but the bead may be dyed or another blue-green stone

Tumbled quartz pebble

Quartz, silicon dioxide (SiO₂), likely milky quartz

Possible tumbled jasper or iron-rich chert

Microcrystalline quartz (SiO₂), commonly colored by iron oxides

Tumbled chalcedony (likely agate or jasper fragment)

Microcrystalline quartz, SiO₂ (chalcedony)

Dyed green agate pendant

Microcrystalline quartz (chalcedony), SiO₂; likely dyed agate

Dyed Howlite (simulating Lavender/Purple Jade or Charoite)

Howlite: Ca2B5SiO9(OH)5 (when natural)

Dyed blue chalcedony (likely dyed quartz pebble)

Chalcedony, microcrystalline quartz (SiO₂), artificially colored

Smoky quartz (likely faceted cabochon or rough fragment)

Quartz, silicon dioxide (SiO₂), smoky variety colored by irradiation-related defects

Peacock Ore

Bornite (Cu5FeS4)

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

Bornite (“peacock ore”), likely weathered copper sulfide

Bornite, Cu₅FeS₄; possibly chalcopyrite, CuFeS₂, with iridescent tarnish

Pink Quartz (likely dyed)

Silicon Dioxide (SiO2)

Aura Quartz (Cranberry or Magenta Aura Quartz)

Silicon dioxide coated with titanium/niobium (SiO2)

Tumbled chalcopyrite (likely)

Chalcopyrite, CuFeS₂

Metallic sulfide mineral fragment, likely bornite or chalcopyrite

Bornite (Cu₅FeS₄) or chalcopyrite (CuFeS₂)

Dyed Dalmatian Jasper (Dalmatian Stone)

Perthitic Feldspar with Arfvedsonite inclusions

Tumbled fossil-bearing limestone (likely crinoid or shell fragment)

Fossil carbonate; predominantly calcite (CaCO₃)

Artificial Rock Face (Faux Rock)

Glass Fiber Reinforced Concrete (GFRC)

Copper-bearing sulfide ore, possibly chalcopyrite-rich

Chalcopyrite (CuFeS₂), possibly with bornite and oxidation products

Smoky quartz crystal (tentative)

Quartz, silicon dioxide (SiO₂), likely smoky variety

Smoky quartz

Quartz, silicon dioxide (SiO₂), brown to gray variety

Smoky Quartz

Silicon Dioxide (SiO2)

Heat-Treated Citrine (Amethyst)

Silicon Dioxide (SiO2) with iron impurities

Heat-Treated Amethyst (Commercial Citrine)

Silicon Dioxide (SiO2) with iron impurities

Heated Citrine (Heat-Treated Amethyst)

Silicon Dioxide (SiO2), quartz variety

Polished blue stone, likely sodalite or dyed agate

Sodalite: Na₈(Al₆Si₆O₂₄)Cl₂; exact identification requires testing

Blue Dyed Agate Geode Slice

Chalcedony (Silicon Dioxide, SiO2) with artificial cobalt/iron-based dye