Mineral Simulant (Synthetic Glass)

Emerald

Beryl (variety Emerald), Be3Al2Si6O18 with Cr and/or V

Blue sea glass or blue glassy mineral fragment

Uncertain; likely man-made soda-lime glass, not a natural mineral

Magnetic Hematite

Magnetized Hematite (an iron oxide mineral, Fe2O3, that has undergone magnetization)

Diamond

Diamond (pure carbon, C)

Multi-stone gemstone ring

Likely faceted blue topaz or synthetic blue stone with clear stones, possibly cubic zirconia or diamond; metal setting appears silver-colored alloy

Titanium-coated Metal Cube (Man-made Fidget Toy)

Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)

Green glassy slag or manufactured glass bead

Noncrystalline silicate glass; likely industrial glass/slag, not a true mineral

N/A - Image is non-geological

Acrylonitrile Butadiene Styrene (ABS) or Polypropylene (PP)

Blue Obsidian (Cullet Glass)

Silicon Dioxide (Amorphous Glass)

Tumbled green glassy mineral, possibly aventurine or fluorite

Uncertain; likely quartz variety (aventurine quartz, SiO₂) or green fluorite (CaF₂)

Cullet Glass (Industrial Slag Glass)

Amorphous Silica (SiO2) with metallic oxide impurities

Polished blue glassy mineral specimen, likely sodalite or blue aventurine

Most consistent with sodalite (Na₈Al₆Si₆O₂₄Cl₂), though dyed quartzite or blue glass cannot be excluded from the photograph

Green glass-like mineral specimen, likely fluorite

Fluorite (calcium fluoride, CaF₂), if natural; appearance may also indicate colored glass

Portable Ceramic Space Heater

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

Green glassy mineral specimen, likely chromium-bearing fluorite (tentative)

Fluorite, CaF₂, possibly green fluorite; identification uncertain from image

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(F,OH)2)

Wood Beads (Palmwood/Ebony)

Various species for wood, but often refers to woods like Palmwood (e.g., Borassus flabellifer) or Ebony (Diospyros spp.) for their distinctive grain and hardness.

Blue-green glassy mineral specimen, likely aquamarine or pale fluorite

Tentatively beryl (Be₃Al₂Si₆O₁₈), aquamarine variety; identification is uncertain from the photograph

Asphalt (Bituminous Concrete)

Bituminous Concrete / Pavement

Green sea glass or green glass-like tumbled material

Amorphous silicate glass; likely anthropogenic soda-lime glass, not a natural mineral

Goldstone (likely red/brown aventurine glass)

Man-made aventurine glass; copper-bearing silicate glass (not a natural mineral)

Muscovite Mica

KAl2(AlSi3O10)(OH)2

Snowflake Obsidian

Volcanic Glass with Cristobalite inclusions (SiO2)

Moldavite (rough fragment)

Natural impact glass, chiefly SiO₂ with Al₂O₃ and trace oxides; tektite

Snowflake Obsidian

Obsidian with Cristobalite inclusions

Shale with Vein Infillings

Shale (a fine-grained clastic sedimentary rock). The veins could be Calcite (CaCO3), Quartz (SiO2), or other minerals.

Gemstone-set ring, likely cubic zirconia or diamond

Likely synthetic cubic zirconia (zirconium dioxide, ZrO₂); stones may alternatively be diamond (carbon, C)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Tumbled amber-colored mineral or glassy pebble

Uncertain; likely chalcedony/quartz, possibly resinous amber or slag glass

Snowflake Obsidian

Volcanic Glass with Cristobalite inclusions (SiO2)

Fluorescent glassy mineral specimen, possibly hyalite opal

Hyalite (hydrated amorphous silica, SiO₂·nH₂O), tentative

Snowflake Obsidian

Spherulitic Volcanic Glass (primarily SiO2)

Clear quartz crystal (tentative)

Quartz, silicon dioxide (SiO₂)

Green glassy mineral fragment, possibly fluorite

Fluorite (calcium fluoride, CaF₂), tentative identification

Muscovite

Muscovite (KAl2(AlSi3O10)(OH)2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz with Muscovite Mica

Silicon Dioxide (SiO2) with Potassium Aluminum Silicate Hydroxide (KAl2(AlSi3O10)(OH)2)

Mica / Muscovite or Biotite

Phyllosilicate mineral group (e.g., KAl2(AlSi3O10)(OH)2)

Green Slag Glass

Cullet (Amorphous Silicon Dioxide with impurities)