Mineraloid

Green Slag

Anthropogenic Silicate Glass

Synthetic Resin (Artificial Specimen)

Polyurethane or Polyester Resin

Iron Slag

Ferrous Slag (Industrial Byproduct)

Slag (Industrial Glass Slag)

Amorphous Silicate Glass (often containing Al, Ca, Mg, and Ti oxides)

Shell Cameo

Cypraecassis rufa (Bullmouth Queen Helmet Shell)

Green Glass (often marketed as 'Obsidian' or 'Green Quartz')

Amorphous Silica (SiO2) with copper or chromium additives

Ferruginous Slag (Iron Smelting Byproduct)

Anthropogenic Vitreous Silicate (often containing Fayalite: Fe2SiO4)

Opaline Glass (Opalite)

Synthetic Silicon Dioxide Glass

Slag (Industrial Glass/Metal Waste)

Artificial silicate/ferro-silicate byproduct

Man-made Crystal (Lead Glass)

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

Amber

Succinicum (Organic compound, primarily C10H16O)

Tektite (Indochinite)

Tektite (High-silica natural glass)

Ceramic or Polished Stone Heart (Anthropogenic Material)

Glazed Ceramic (Silicon Dioxide based coating on Alumina Silicate body) or Polished Limestone/Marble (Calcium Carbonate, CaCO3)

Amber (and Citrine Quartz)

Succinite (Amber) and Silicon Dioxide (SiO2)

Tektite (specifically Indochinite)

Tektite (Natural silica glass)

Cat's Eye Shell (Shiva Shell)

Operculum of the Turbo petholatus (Tapestry Turban Snail), predominantly Calcium Carbonate (Aragonite)

Ferruginous Slag (Iron Smelting Byproduct)

Fused Silicate Scoria (Amorphous mixture of FeO, SiO2, and CaO)

Red Jasper

Jasper (a variety of Chalcedony, SiO₂)

Opalite

Synthetic Opalized Glass

Amber

Succinite (specifically for Baltic amber); Approximate formula: C10H16O

Cobalt Blue Sea Glass

Amorphous Silica Glass (SiO2 + CoO)

Amber

Succinite (Resinite)

Slag Glass (Cullet)

Amorphous Silica (man-made), primarily SiO2 with trace metal oxides

Green Glass Slag

Amorphous Silicon Dioxide (SiO2) with metal oxide impurities

Baltic Amber (Butterscotch variety)

Succinite

Red Slag Glass

Amorphous Silica (Industrial byproduct with metallic oxide dopants)

Opalite

Synthetic Opalized Glass (SiO2 + additives)

Cullet Glass (sometimes mistaken for Blue Obsidian or Slag)

Amorphous Silicon Dioxide (SiO2) with chemical additives (e.g., Cobalt for blue color)

Opalite

Synthetic Opalite Glass (Silicon Dioxide)

Baltic Amber (Butterscotch or Egg Yolk Variety)

Succinite (C10H16O)

Green Slag Glass

Amorphous Silica / Glassy Blast Furnace Slag

Glass Nugget (Tumbled Glass)

Amorphous Silicon Dioxide (SiO2) with additives

Goldstone (Brown)

Aventurine glass

Goldstone (Brown)

Aventurine Glass (Silicon Dioxide infused with Copper crystals)

Goldstone

Aventurine Glass (Man-made glass with copper inclusions)

Ambergris

Physeter macrocephalus excreta (Ambergris)

Opalite

Synthetically produced glass (Silicon Dioxide with metallic inclusions)

Precious Coral

Corallium rubrum (Calcium carbonate with trace carotene)

Goldstone (Synthetic Aventurescence Glass)

Cuprous Aventurescent Glass (Silicon Dioxide with Copper inclusions)

Sea Glass

Amorphous Silica (Glass) SiO2

Yellow Chalcedony (common opal or chert variant)

Silicon Dioxide (SiO2)

Synthetic Resin / Plastic Figurine

Synthetic Polymer (Copolymer of Polyethylene or Resin)