Mineraloid (Impact Glass)

Amber

Succinite

Amber (likely raw amber)

Fossilized tree resin; organic mineraloid, commonly containing succinite (not a true mineral)

Polymictic breccia, possibly volcanic breccia

Polymictic clastic breccia; likely a matrix-supported breccia containing lithic fragments, quartz, feldspar, and dark mafic minerals

Opalite

Synthetic Glass, SiO2 base with metallic inclusions

Amber

Succinite (specifically Baltic Amber) - Formula: C10H16O (approximate)

Pearl (Imitation or Cultured)

Calcium Carbonate (Aragonite/Calcite) - CaCO3

Amber

Succinite

Amber

Succinite (a Fossilized Tree Resin); Chemical formula is approximately C10H16O

Amber

Succinite (specifically for Baltic amber; general formula C10H16O)

Pearl (Cultured or Natural)

Aragonite (CaCO3) with Conchiolin

Slag Glass (Cullet)

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

Goldstone (Brown)

Aventurine glass

Ferruginous Slag (Iron Smelting Byproduct)

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

Amber (likely a small polished amber piece)

Natural fossil resin; amber is an organic mineraloid, not a crystalline mineral. The image alone cannot confirm authenticity.

Cobalt Blue Sea Glass

Amorphous Silica Glass (SiO2 + CoO)

Cullet Glass (sometimes mistaken for Blue Obsidian or Slag)

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

Man-made Crystal (Lead Glass)

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

Goldstone (Brown)

Aventurine Glass (Silicon Dioxide infused with Copper crystals)

Green Slag

Anthropogenic Silicate Glass

Goldstone

Aventurine glass (Synthetic glass with copper inclusions)

Red Slag Glass

Amorphous Silica (Industrial byproduct with metallic oxide dopants)

Glass Nugget (Tumbled Glass)

Amorphous Silicon Dioxide (SiO2) with additives

Green Slag Glass

Amorphous Silica / Glassy Blast Furnace Slag

Goldstone

Aventurine Glass (Man-made glass with copper inclusions)

Opalite

Synthetic Opalite Glass

Opalite

Synthetic Opalized Glass

Slag Glass

Amorphous Silica Glass (with metal oxide inclusions)

Probable amber fragment

Amber (fossilized plant resin; chiefly amorphous organic resin, commonly dominated by succinite)

Opaline Glass (Opalite)

Synthetic Silicon Dioxide Glass

Slag (Industrial Glass Slag)

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

Opalite

Synthetic Opalized Glass (SiO2 + additives)

Opalite

Synthetic Opalite Glass (Silicon Dioxide)

Amber (and Citrine Quartz)

Succinite (Amber) and Silicon Dioxide (SiO2)

Green Glass Slag

Amorphous Silicon Dioxide (SiO2) with metal oxide impurities

Opalite

Synthetically produced glass (Silicon Dioxide with metallic inclusions)

Baltic Amber (Butterscotch or Egg Yolk Variety)

Succinite (C10H16O)

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

Amorphous Silica (SiO2) with copper or chromium additives

Amber

Succinicum (Organic compound, primarily C10H16O)

Sea Glass

Amorphous Silica (Glass) SiO2

Slag (Industrial Glass/Metal Waste)

Artificial silicate/ferro-silicate byproduct

Ferruginous Slag (Iron Smelting Byproduct)

Anthropogenic Vitreous Silicate (often containing Fayalite: Fe2SiO4)

Chalcedony (or a variety of Chalcedony, likely Agate or Jasper)

Chalcedony (SiO₂)