Man Made Metamorphic Style Composite

Jade and chalcedony-style costume ring

Likely nephrite or jadeite (green cabochons) with orange/cream chalcedony or glass-like beads; identification from the photo is uncertain

Man-made Jewelry Charm (Enameled Metal)

Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.

Cullet Glass (Man-made Glass Slag)

Amorphous Silica (SiO2) with chemical additives

Yellow Sapphire (Raw)

Corundum (Al2O3)

Polished pietersite-like brecciated jasper

Silicified chalcedony/jasper aggregate, primarily SiO₂; exact material uncertain from image

Cobalt Glass Slug (Man-made Glass)

Amorphous Silica with Cobalt Oxide (SiO2 + CoO)

Man-made Metal Pin (Non-geological)

Antimony-Lead Alloy or Zinc/Brass Base with Electroplating

Red glassy cabochon, likely synthetic ruby or red glass

Uncertain; possible synthetic corundum (Al₂O₃, chromium-colored) or man-made glass

Tumbled opalite (likely synthetic glass)

Opalite; typically man-made opalescent soda-lime glass, not a recognized mineral species

Rough Corundum (Sapphire/Ruby mixture)

Corundum (Aluminum Oxide, Al2O3)

Likely slate

Slate, a fine-grained metamorphic rock composed mainly of mica-group minerals and quartz

Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Graphite-rich schist (probable graphite flake)

Graphite (C) in graphitic schist; possibly graphite-bearing phyllite

Colorless faceted gemstone, likely cubic zirconia

Synthetic cubic zirconia (zirconium dioxide, ZrO₂); identity is visual and not definitive

Asphalt

Asphalt concrete (engineered material, not a naturally occurring rock/mineral in this form)

Corundum (Pink Sapphire / Ruby)

Al2O3 (Aluminum Oxide)

Milky quartz pebble

Quartz (silicon dioxide, SiO₂)

Exposed aggregate concrete (stone-chip surface)

Portland-cement concrete containing natural aggregate; not a natural rock

Pyrite

Iron Sulfide (FeS2)

Green Agate

Silicon dioxide (SiO₂)

Marble

Metamorphic Limestone (CaCO3)

Tiger Iron

Tiger Iron (Hematite, Red Jasper, and Chert/Tiger's Eye composite)

Tiger Iron

Tiger Iron (Hematite, Red Jasper, and Chert/Tiger's Eye composite)

Goldstone (Red/Brown)

Aventurine Glass (SiO2 with Copper inclusions)

Faceted colored gemstones, likely synthetic corundum or glass imitations

Not identifiable from the image; possible synthetic corundum (Al₂O₃)

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.

Quartzite

Metamorphic Quartzite

Corundum (Sapphire/Ruby in Matrix)

Corundum (Al2O3)

Quartzite

Metamorphic Quartz Arenite

Quartzite

Metamorphic Quartz Arenite

Slate

Metamorphic Pelitic Rock

Dumortierite in Quartz

Dumortierite (Al6O3(BO3)(SiO4)3) with Quartz (SiO2)

Quartzite

Metamorphic Quartzite (SiO2)

Quartzite

Metamorphic Quartz Arenite

Beaded mineral/crystal jewelry (likely turquoise and coral accents)

Variable; blue beads may be turquoise (CuAl6(PO4)4(OH)8·4H2O), with possible dyed howlite, glass, or composite materials

Quartzite

Metamorphic Quartz Sandstone

Quartzite

Metamorphic Quartzite (SiO2)

Quartzite

Metamorphic Quartzite (SiO2)

Green Aventurine

Quartz (SiO2) with Fuchsite inclusions

Likely milky quartz fragment

Quartz (SiO₂)

Corundum (Ruby variety)

Aluminium oxide (Al2O3)

White marble

Calcite marble, predominantly CaCO₃