Man Made Object

Not a geological specimen

N/A (man-made object)

Ring with an Orange Inlay

N/A (Man-made object)

Bouncy Ball (Synthetic Rubber Polymer)

Polybutadiene / Ethylene Vinyl Acetate (EVA)

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

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

Note: This is a Man-Made Object (Costume/Prop Patch)

Synthetic fiber and pigments (Cellulose/Plastic-based composite)

Lava Rock with Fabric Impression

Scoria or Basalt with anthropogenic impressions

Synthetic Resin Charm (Seal Shape)

Polymer Resin with plastic glitter / Polyethylene terephthalate glitters

Green glass sphere/marble

Soda-lime glass (primarily SiO2, Na2O, CaO)

Metal Alloy (Likely Pewter or Sterling Silver)

Not a natural geological specimen; composed of refined metals. If pewter, it's a tin-based alloy. If sterling silver, it's 92.5% silver and 7.5% other metals (usually copper).

N/A - Man-made object (Jewelry Chain)

Antiqued or Oxidized Metal Chain (often Steel or Brass)

Note: Item is a Synthetic/Man-made Object

Titanium-coated Stainless Steel (Fe-Cr-Ni-Ti)

Man-made earbud charging case (Not a rock or mineral)

Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components

Metal Chain Belt with Square Plates

Not applicable (man-made)

Malaysian 50 Sen Coin

Coinage (specific alloy unknown without metallurgical analysis, but typically brass or bronze for this denomination and era)

Carved Mottled Greenish-Yellow Crystal/Glass Object

Unknown; possibly a form of quartz (chalcedony/jadeite/nephrite) or glass/resin.

Metal Chain (Likely Steel or a Steel Alloy)

Steel (primarily iron and carbon); specific alloy unknown

US Penny

Cuprum (Copper: Cu) and Zincum (Zinc: Zn) Alloy

Not a rock, mineral, or geological specimen

Chert Arrowhead (Projectile Point)

Microcrystalline Quartz (Chert or Flint)

Chakra Stone Tower (Composite Multi-Mineral)

Crystalline Silicon Dioxide composite (SiO2) with various inclusions

Synthetic Resin / Plastic Figurine

Synthetic Polymer (Copolymer of Polyethylene or Resin)

Brick fragment (Man-made material)

N/A (Fired clay)

N/A - Non-Geological Item

Man-made Synthetic Material (Plastic/Composite)

Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)

Carved Stone Turtle

Carved Soapstone and Quartz

Sea Glass

Man-made vitreous material

Clear quartz sphere

Quartz (silicon dioxide, SiO₂)

Sea Glass

Man-made silicate glass

Man-made Crystal (Lead Glass)

Lead oxide-doped Silica Glass (approx. SiO2 + PbO)

Man-made Ceramic / Clay Figurine

Aluminosilicate Ceramic (Processed Clay)

Aluminum Slag

Anthropogenic Aluminum (Al)

Opalite

Synthetic glass / Opalized glass

Crescent Pebble

Weathered Quartzite or Sandstone Fragment

Cullet Glass / Slag Glass

Amorphous silica glass

One Pound Coin (UK)

Nickel-Brass Alloy (Cu-Zn-Ni)

Sea Glass

Man-made silicate glass weathering product

Man-made Jewelry Charm (Enameled Metal)

Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.

Opalite (a synthetic glass)

Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant

Polished brown jasper (likely brecciated or orbicular jasper)

Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions

Opalite

Synthetic glass / Opalized glass

Diamond (or Simulant)

Carbon (C) or relevant simulant formula (e.g., ZrO2 for Cubic Zirconia)

ABS Plastic (Acrylonitrile Butadiene Styrene)

(C8H8)x·(C4H6)y·(C3H3N)z