Slag Glass (Cullet)
Amorphous Silica / Glass residue
Man-made byproduct (Non-geological)
Category
Man Made Object (Metalwork)
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Ferrosilicon Slag (Industrial Vitrified Glass)
Vitreous Silicate Residue
Antropogenic (Man-made industrial byproduct)
Terrazzo (Synthetic Composite Rock)
Cementitious or Epoxy Resin-bound Aggregates
Man-made metamorphic-style composite
Synthetic Costume Glove (Paws)
Polyethylene terephthalate (Polyester) & Polyurethane blend
Non-geological / Man-made textile
Slag
Anthropogenic Vitrification Product / Silicate Slag
Anthropogenic (Man-made industrial byproduct)
Fossilized tooth, likely mammalian molar
Indeterminate Mammalia; mineralized dentine and enamel
fossil
Banded Sandstone
Arenite with Liesegang banding
sedimentary
Rose Gold (Copper-Gold Alloy)
Aurum-Cuprum Alloy (Au-Cu)
mineral (native element alloy)
Tektite
Natural impact glass
meteorite
Obsidian
Obsidian (Volcanic Glass)
igneous
Fossilized Ray Barb (Stinger) Fragment
Myliobatiformes indet. (Fossil stingray spine)
fossil
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Banded Calcite (often marketed as 'Mexican Onyx')
Calcite (Calcium Carbonate, CaCO3)
sedimentary
Green Onyx (Banded Calcite)
Calcite (Calcium Carbonate, CaCO3)
mineral
Likely slate fragment
Slate; fine-grained foliated metamorphic rock, commonly quartz–mica–chlorite rich
metamorphic
Sodalite beads
Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂, likely with minor lazurite/pyrite or calcite inclusions
mineral
Flint
Silicon Dioxide (SiO2) - Microcrystalline Quartz / Chert
sedimentary
Amethyst (with Pyrite and other minerals)
Silicon Dioxide (SiO2)
mineral
Chert
Sedimentary cryptocrystalline quartz (SiO2)
sedimentary
Diamond
Carbon (C)
gemstone
Diorite
Intermediate plutonic igneous rock
igneous
Chert / Green Jasper
Silicon Dioxide (SiO2)
sedimentary
Diamond
Natural Diamond (Carbon, C)
gemstone
Gold
Native Gold (Au)
mineral
Dyed Quartz (imitating Emerald/Green Quartz)
Silicon Dioxide (SiO2) with artificial pigment
mineral
Diorite (River Pebble)
Intermediate Phaneritic Igneous Rock
igneous
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
White Marble
Recrystallized Calcite Rock (CaCO3)
metamorphic
Dolerite (Diabase)
Dolerite / Diabase
igneous
Sandstone
Arenite (SiO2 principal)
sedimentary
Green Slag Glass
Amorphous Silica / Glassy Blast Furnace Slag
Mineraloid (Industrial byproduct)
Chert
Microcrystalline quartz (SiO2)
sedimentary
Coral Rock (Coquina)
Biogenic Limestone (Calcium Carbonate - CaCO3)
sedimentary
Zircon
Zircon (Zirconium Silicate - ZrSiO4)
mineral
Milky Quartz (Micro-specimen)
Silicon Dioxide (SiO2)
mineral
Blue-beaded gemstone jewelry, likely lapis lazuli or dyed blue agate
Uncertain from the image; possible lazurite-bearing lapis lazuli (Na₃Ca(Si₃Al₃)O₁₂S) or blue chalcedony (SiO₂)
gemstone
Tumbled green aventurine (probable)
Quartz aggregate, SiO₂, commonly containing fuchsite mica inclusions
mineral
Tumbled blue-gray chalcedony (likely blue agate)
Chalcedony, microcrystalline quartz (SiO₂)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Pyrite
Iron Disulfide (FeS2)
mineral
Banded Calcite (often sold as 'Mexican Onyx' or 'Green Onyx')
Calcite (Calcium Carbonate, CaCO3)
Sedimentary