Man Made Material (Jewelry, Metal Alloy)

Aquamarine

Beryl (Be3Al2Si6O18)

Conglomerate

Conglomerate (clastic sedimentary rock)

Concrete rubble

Anthropogenic conglomerate

Polished yellow-green serpentine pendant

Serpentine-group minerals, chiefly antigorite and/or lizardite; approximate formula Mg3Si2O5(OH)4

Diamond / Clear Quartz / Glass paste

Carbon (Diamond) / Silicon Dioxide (Quartz)

Opalite (likely man-made opalescent glass)

Opalite; not a true mineral, typically synthetic opalescent glass (silica-based)

Citrine Quartz

Citrine (Silicon Dioxide, SiO2)

Ferrochrome Slag

Industrial Glassy Slag (Fe-Cr alloy byproduct)

Native copper nugget

Copper (Cu), commonly with cuprite and copper-oxide alteration

Amethyst gemstone ring

Quartz, purple variety — SiO₂

Turquoise cabochon ring

Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O

Standing Liberty Quarter (Silver Specimen)

Native Silver alloy (Ag with Cu traces)

Faceted brown gemstone pendant, likely smoky quartz or champagne topaz

Probably quartz (SiO₂), smoky variety; alternatively topaz (Al₂SiO₄(F,OH)₂)

Polished blue glassy mineral specimen, likely sodalite or blue aventurine

Most consistent with sodalite (Na₈Al₆Si₆O₂₄Cl₂), though dyed quartzite or blue glass cannot be excluded from the photograph

Porcelain (White Ceramic)

Mullite-bearing Vitrified Ceramic (Major phases: Mullite Al6Si2O13, Glassy Silica SiO2)

Red cabochon gemstone ring (likely ruby or red spinel; identity unconfirmed)

Possibly corundum (ruby, Al₂O₃) or spinel (MgAl₂O₄); visual identification alone cannot distinguish these from glass or synthetic stones.

Goldstone (blue/black aventurine glass)

Man-made aventurine glass; silica glass containing metallic copper or other glittering inclusions

Gemstone jewelry ensemble

Likely mixed gemstone and glass-bead jewelry; exact stones cannot be determined from the image

White cabochon gemstone, likely milky chalcedony or opalite

Chalcedony: microcrystalline quartz, SiO₂; appearance may also indicate synthetic opalite glass

Asphalt Concrete (Bituminous Concrete)

Bituminous aggregate

Small greenish crystal/mineral fragment

Indeterminate; possibly olivine, quartz, or a green gemstone fragment

Yellow faceted gemstone, likely citrine or yellow sapphire

Uncertain; probable quartz (SiO₂) or corundum (Al₂O₃)

Gold and Silver (Metal Components of an Antique Pocket Watch)

Native Gold (Au) and Native Silver (Ag)

Blue chalcedony bead necklace

Chalcedony, microcrystalline quartz (SiO₂), commonly blue-dyed or blue-gray natural chalcedony

Cubic Zirconia (Jewelry Setting)

Cubic Zirconia (ZrO2)

Likely iron meteorite

Iron meteorite, predominantly kamacite and taenite (Fe–Ni alloys)

Iron-Nickel Meteorite Fragment (Unclassified)

Iron-Nickel Alloy (Taenite and Kamacite)

Asphalt (Bituminous pavement)

Bituminous concrete / Asphalt

Goldstone

Aventurine Glass (Man-made glass with copper inclusions)

Quartz (Engineered Stone Countertop)

Silicon Dioxide (SiO2) with polymer resins

Chert (Yellow Jasper/Flint)

Microcrystalline Quartz (SiO2)

Cubic Zirconia

Cubic Zirconium Dioxide (ZrO2)

Green Sea Glass

Man-made silicate glass (weathered)

Blue glassy gemstone-like specimen

Indeterminate; possibly dyed or treated turquoise, blue apatite, or man-made glass

Aquamarine (Small Beads)

Beryl (Be3Al2Si6O18 with traces of iron)

Red Sandstone or Brick Fragment

Arenite (if sandstone)

Possible metallic meteorite or iron-nickel bead

Unconfirmed; possible Fe–Ni alloy (kamacite/taenite)

Polished black pebble, likely basalt

Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase feldspar and pyroxene, commonly with olivine

Iron meteorite (probable)

Fe–Ni alloy, mainly kamacite and taenite

Polished black pebble, possibly obsidian

Volcanic glass (obsidian), likely; identification is tentative from the image

Copper Ore

Mixed copper sulfides/oxides in gangue matrix

Decorative mosaic cross containing mixed rock and glass fragments

Polychrome aggregate; likely quartz, feldspar, marble, granite, and assorted colored glass