Synthetic (Not A Rock Or Mineral)

Lava Stone and Chakra Beads

Basalt (with various mineral/synthetic beads)

Unidentified gray rock fragment

Indeterminate from image; possibly quartz- or feldspar-rich silicate material

Note on Image Identification: Textile

N/A (Anthropogenic material)

Portable Ceramic Space Heater

Polished Acrylonitrile Butadiene Styrene (ABS) Plastic with Ceramic Heating Elements

Clear Quartz crystals on a Matrix base (Geode fragment)

Silicon Dioxide (SiO2)

Small pink mineral fragment

Indeterminate; possibly rose quartz or feldspar

Painted Rock

Weathered Sedimentary Rock (Painted)

Silicon Carbide (Carborundum)

Silicon Carbide (SiC)

Blue Goldstone

Man-made glass with cobalt and metal flecks

Faceted Gemstone

Unknown transparent mineral, possibly Diamond (C), Cubic Zirconia (ZrO2), Quartz (SiO2), or Glass

Turquoise cabochon pendant

Turquoise, hydrated copper aluminum phosphate — CuAl₆(PO₄)₄(OH)₈·4H₂O

Pearl strand

Nacreous pearl, primarily aragonite (CaCO₃) with conchiolin protein

Weathered dark mineral/rock fragment

Indeterminate; possibly iron-rich basalt, slag, or a sulfide-bearing mineral

Blue-and-white opalite sphere

Opalite (commercial synthetic or glass-based imitation; not true opal), typically silica glass or synthetic opalescent material

Opalite

Man-made Glass (Synthetic Opalized Glass)

Pink Dyed Agate

Silicon Dioxide (SiO2) with synthetic pigment

Blue stone cabochon, likely lapis lazuli or dyed stone

Lapis lazuli: lazurite-rich rock, chiefly (Na,Ca)₈(AlSiO₄)₆(S,SO)₂; exact identification is uncertain from the image

Unknown dark mineral fragment

Indeterminate; possibly a dark silicate mineral or slag-like geological fragment

Asphalt (Bituminous Concrete)

Bituminous mix / Anthropogenic conglomerate

Silicon Carbide (Carborundum)

Silicon Carbide (SiC)

Fossilized stromatolite or laminated microbial mat

Layered carbonate/chert fossil; exact taxon indeterminate from the image

Granite (Leucogranite)

Felsic Plutonic Rock (Granite)

Blue glass-like bead or gemstone keychain ornament

Indeterminate; likely cobalt-blue glass or synthetic blue spinel, not identifiable as a natural mineral from the image

Painted River Rock

Artificially Coated Sedimentary Rock

Digital Multimeter (Synthetic Object)

Digital Multimeter (DMM)

Dyed Agate

Silicon Dioxide (SiO2) with synthetic dyes

Beach Pebble Quartzite / Chalcedony Pebble

Silicon Dioxide (SiO2)

Painted River Rock

Painted Quartzite or Smooth Siltstone

Opalite (Synthetic Moonstone/Sea Opal)

Silicon Dioxide (SiO2) glass with metallic inclusions

Ruby (in costume jewelry context)

Corundum (Al2O3) with Chromium impurities

Blue-violet faceted gemstone, likely amethyst

Quartz (SiO₂), purple variety colored mainly by iron impurities and irradiation

Blue Agate Geode (Dyed)

Cryptocrystalline Quartz (SiO2)

Dyed Agate

Silicon Dioxide (SiO2) - variety Chalcedony

Weathered granite or granitic pegmatite fragment

Granite; chiefly quartz (SiO₂), feldspar, and mica, possibly iron-oxide alteration

Faceted Clear Quartz or Diamond Simulant

Silicon Dioxide (SiO2) if Quartz or Cubic Zirconia (ZrO2) if Synthetic

Plastic Building Toy (Lego-style piece)

Acrylonitrile Butadiene Styrene (ABS)

Blue-green turquoise (probable)

Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O

Pink Dyed Agate

Silicon Dioxide (SiO2) - Variety Agate

Opalite

Synthetic Opalised Glass

Carnelian

Carnelian (Cryptocrystalline Quartz, SiO2)

Hematite cameo or hematine imitation

Hematite (Fe₂O₃); possibly synthetic hematine or black glass

Clear faceted gemstone, likely synthetic cubic zirconia

Cubic zirconia (zirconium dioxide, ZrO₂); visual identification is not definitive and diamond or synthetic moissanite are alternatives