Mineraloid (Human Made Geological Specimen)

Black-and-white agate geode pendant

Agate (microcrystalline quartz, SiO₂), likely a hollow geode slice with chalcedony and drusy quartz

Green Slag Glass

Amorphous Silica / Glassy Blast Furnace Slag

Blue opalite (often sold as synthetic opal)

Opalite glass; amorphous hydrated silica if natural opal (SiO₂·nH₂O)

Tourmalinated quartz point

Quartz (SiO₂) with black tourmaline (schorl, NaFe²⁺₃Al₆(BO₃)₃Si₆O₁₈(OH)₄) inclusions

Limonite (Yellow Ochre)

Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)

Blue glassy mineral fragment, possibly sodalite or dyed/cobalt glass

Uncertain; likely sodalite (Na₈Al₆Si₆O₂₄Cl₂) if natural, but vivid blue color may indicate cobalt-colored glass

Faceted colorless gemstone, likely quartz or glass imitation

Most likely quartz (SiO₂), though the strong glare and visible facet pattern could indicate cubic zirconia or lead glass

N/A - Non-Geological Item

Polished orbicular granite heart

Granite, commonly quartz–alkali feldspar–plagioclase–biotite granite; exact locality-dependent

Chert (with Limestone matrix)

Silicon dioxide (SiO2)

Tumbled brown chalcedony or jasper

Microcrystalline quartz, SiO₂; possibly iron-bearing jasper

Tumbled serpentine

Serpentine-group minerals, chiefly antigorite, lizardite, or chrysotile; approximately Mg₃Si₂O₅(OH)₄

Synthetic Resin / Plastic Figurine

Synthetic Polymer (Copolymer of Polyethylene or Resin)

Note on Image Identification: Textile

N/A (Anthropogenic material)

Concrete rubble

Anthropogenic conglomerate

Green cabochon gemstone, likely nephrite jade

Nephrite jade—interlocking amphibole fibers, chiefly tremolite-actinolite, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂

Asphalt aggregate (crushed stone in bitumen)

Artificial composite; predominantly crushed granite, basalt, limestone, and/or recycled aggregate bound by bitumen

Cullet Glass (sometimes mistaken for Blue Obsidian or Slag)

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

Likely smoky quartz pendant

Smoky quartz, silicon dioxide (SiO₂), quartz variety colored by irradiation-related defects

Polished yellow calcite

Calcite (calcium carbonate, CaCO₃)

Likely weathered iron-rich rock or slag fragment

Uncertain; possibly limonite/goethite-rich material (FeO(OH)·nH₂O)

Likely clear quartz crystal (possibly cut/polished quartz or glass imitation)

Quartz, silicon dioxide (SiO₂)

Decorative gemstone-chip jewelry (likely turquoise, coral, and assorted beads)

Predominantly turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; other pieces appear to be dyed coral or red stone, and possibly shell/metal components

Amber

Succinite (Carbon-based organic compound; approximate formula C10H16O)

Chert (Flint)

Cryptocrystalline Quartz (SiO2)

Polished dendritic agate cabochon (likely agate or jasper)

Microcrystalline quartz, SiO₂, commonly chalcedony with iron-oxide inclusions

Pearl (Biogenic Mineraloid)

Calcium carbonate (Aragonite) and Conchiolin, CaCO3

Tumbled orbicular granite

Granite, predominantly potassium feldspar, plagioclase, quartz, and biotite/hornblende

Goldstone

Aventurine glass (Synthetic glass with copper inclusions)

Carved quartz (likely rose quartz and green aventurine/quartz)

Quartz, silicon dioxide (SiO₂); green material may be aventurine quartz or serpentine

Polished smoky quartz crystal point

Quartz (SiO₂), likely iron-colored or smoky quartz with milky inclusions

Blue glassy cabochon, likely blue quartz or synthetic glass

Possibly dyed blue chalcedony/quartz (SiO₂); visual identification is inconclusive

Polished rutilated quartz cabochon

Quartz (SiO₂) with rutile inclusions (TiO₂)

Opalite

Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)

Polished black stone sphere (likely black basalt or black tourmaline)

Most likely fine-grained basalt (plagioclase–pyroxene); mineral identification is uncertain from the image alone

Crushed Stone / Gravel

Aggregatus saxum (variable mineral composition)

Man-made Ceramic / Clay Figurine

Aluminosilicate Ceramic (Processed Clay)

Tumbled green glassy mineral, possibly aventurine or fluorite

Uncertain; likely quartz variety (aventurine quartz, SiO₂) or green fluorite (CaF₂)

Man-made Crystal (Lead Glass)

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

Polished brecciated jasper pendant

Jasper, an opaque microcrystalline variety of chalcedony (mostly SiO₂), with iron-oxide staining and likely brecciation

Decorated turquoise-like bead or mineral pendant

Likely turquoise [CuAl₆(PO₄)₄(OH)₈·4H₂O], possibly dyed composite or blue-green jasper

Green glassy slag (often sold as “sea glass” or “green obsidian”)

Industrial vitreous slag; primarily amorphous silicate glass, composition variable