Mineral (Synthetic Paper And Ink Polymorph)

Synthetic/Man-made Material

Faceted Glass (Costume Jewelry)

Amorphous Silicon Dioxide with colorants (Glass)

Colorless faceted gemstone (most likely synthetic cubic zirconia)

Cubic zirconia, ZrO₂ (likely synthetic); natural alternatives include quartz or diamond

Faceted yellow-brown gemstone earring

Likely citrine (quartz, SiO₂), though treated quartz or synthetic glass cannot be confirmed from the image

Synthetic or Natural Fiber

Textile (Upholstery Fabric)

Woven Polyethylene/Polyester or Cotton Blend

Bowling Ball (Brunswick T-Zone Deep Space)

Polyester resin / Polyurethane polymer

Synthetic (not a natural rock)

ABS Plastic (Acrylonitrile Butadiene Styrene)

(C8H8)x·(C4H6)y·(C3H3N)z

Synthetic Polymer (Synthetic Material)

Polished blue chalcedony or glass-like quartz specimen

Chalcedony (microcrystalline SiO₂), possibly treated or synthetic; exact identification requires testing

Anticrystalline / Synthetic Alloy

Man-made Blank Ammunition (Brass)

CuZn (Cartridge Brass - roughly 70% Copper, 30% Zinc)

Hand-Drawn Gengar Pokémon Card Artist Item

Lignocellulosic Fiber (Cellulose, C6H10O5) with wax-based pigment (crayon/colored pencil)

Organic (Paper and Cellulose)

3D Printed PLA Elephant (Silk Multi-color)

Polylactic Acid (C3H4O2)n

Synthetic Polymer (Polylactic Acid)

Pearl-embellished decorative cross

Pearl (biogenic calcium carbonate, predominantly aragonite) with rhinestone-mounted glass or synthetic gemstones

Pearl-and-gemstone insect brooch

Pearl: nacre (aragonite, CaCO₃); colored stones are likely synthetic or natural corundum/spinel/glass, not determinable from the image

Synthetic (Man-made material mimicking natural stone)

Glazed Ceramic Tile

Fused Silicate-Clay composite

Green Slag Glass (Cullet)

Amorphous Silica (Industrial Glass Byproduct)

Synthetic/Byproduct (Non-igneous, non-sedimentary, non-metamorphic)

Nephrite Jade

Nephrite

Mineral/Rock

Kidney Stone

Calculus (Calcium oxalate/Calcium phosphate)

Azurite Malachite

Azurite (Cu3(CO3)2(OH)2) and Malachite (Cu2CO3(OH)2)

Organic (if resin) or Synthetic (if glass); simulating Sedimentary or Metamorphic (for natural stones)

Red Swirl Beads (Likely Resin or Glass, simulating Red Jasper or Agate)

N/A (for the beads as pictured); Red Jasper: SiO2 (Chert variety); Red Agate: SiO2 (Chalcedony variety)

Yellow Quartz

Silicon Dioxide (SiO2)

Clear Quartz

SiO2 (Silicon Dioxide)

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Quartz (Smoky/Brown variety)

Silicon dioxide (SiO2)

Snowflake Obsidian

Obsidian with Cristobalite inclusions

igneous

Quartz pebble

Silicon dioxide (SiO2)

Dyed Quartz Geode

Silicon Dioxide (SiO2) with artificial pigment

Rock Specimen

Unclassified rock specimen

Sandstone

Clastic Sedimentary Rock

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Quartz in Matrix (Lepidolite or Quartzite)

Silicon Dioxide (SiO2) with host rock

Quartz with Mica (Muscovite/Biotite)

Silicon Dioxide (SiO2) with Phyllosilicate inclusions

Quartz with Mica

Silicon Dioxide (Quartz, SiO2) with Muscovite/Biotite Mica

Quartz Geode

Silicon Dioxide (SiO2)

Selenite / Gypsum

Gypsum (CaSO4·2H2O)

Mineral

Painted Rock / Geode Specimen

Silicon Dioxide with artificial pigment coating

Note regarding baguette production (not a rock)

Digital text image - Somali language

not a rock

Quartz Pebble

Silicon Dioxide (SiO2)

Feldspar

Triclinic or Monoclinic Tectosilicate (e.g., KAlSi3O8)

Quartz with Tourmaline inclusions

Silicon Dioxide (SiO2) with Tourmaline needles

Bismuthinite with Chalcopyrite and Quartz

Bismuthinite (Bi2S3) and Chalcopyrite (CuFeS2)

Aura Quartz (Titanium/Rainbow Quartz)

SiO2 (Silicon Dioxide) with metallic coating