Man Made (Synthetic Rock)

Red jasper pebble

Jasper, an opaque, iron-oxide-colored variety of microcrystalline quartz (SiO₂)

Sandstone

Arenite

Beaded gemstone bracelet

Indeterminate; likely small polished mineral beads, possibly turquoise or dyed stone, with metal and glass components

Dark gray water-worn pebble

Likely basalt or another fine-grained mafic rock; exact identification is not possible from the image alone

Synthetic Wolf Plush (Non-mineral)

Canis lupus similis (Prop material: Polyester & Synthetic fibers)

Quartz Pebble (Beach Chalcedony)

Silicon Dioxide (SiO2)

Quartzite

Metamorphic Quartz Rock (SiO2)

Desert Rose (Gypsum Rose)

Calcium Sulfate Dihydrate (CaSO4·2H2O)

Faceted glass-like gemstone (likely synthetic quartz or cubic zirconia)

Identification uncertain; possibilities include synthetic quartz (SiO₂) or cubic zirconia (ZrO₂)

Exposed aggregate concrete (stone-chip surface)

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

Sandstone (Quartzose)

Arenite (primarily SiO2)

Likely green bottle glass, not a geological specimen

Manufactured soda-lime silicate glass

Slate

Metamorphic Pelitic Rock

Slate

Metamorphic Pelitic Rock

Sandstone

Arenite

Quartzite

Metamorphic Quartz Rock (SiO2)

Turquoise ring

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; the setting appears to be silver-colored metal

Chert (White Chert/Flint)

Microcrystalline Quartz (SiO2)

Bituminous Coal

Organic-rich sedimentary rock (Complex hydrocarbons)

Belemnoit (Fossil)

Belemnoidea (Order), Rostrum / Guard

Ruby (set in a ring; possibly synthetic or imitation)

Corundum, Al₂O₃; red color is typically caused by chromium

Faceted red gemstone, likely ruby

Corundum (Al₂O₃), red variety colored mainly by chromium

Sandstone (Quartzose)

Arenite (primarily SiO2)

Polished stone sphere, possibly agate or jasper

Likely microcrystalline quartz (SiO₂); exact variety cannot be confirmed from the image

Sandstone

Arenite (primarily SiO2)

Diamond-set gold ring

Diamond (carbon, C) in a gold-alloy setting; the stone may be a diamond or a diamond simulant

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

Industrial vitreous slag; primarily amorphous silicate glass, composition variable

Yellow cabochon gemstone, likely citrine or yellow glass imitation

Quartz (SiO₂), if natural citrine; visual evidence is insufficient to exclude man-made glass or resin

Polished blue-green glassy slag or coated mineral fragment

Most likely man-made colored glass/slag; exact composition cannot be determined visually

Moonstone cabochon (probable)

Adularescent feldspar, usually orthoclase–albite intergrowth (KAlSi3O8–NaAlSi3O8)

Chert

Microcrystalline Quartz (SiO2)

Sandstone (Quartzose)

Arenite (composed primarily of SiO2)

Pumice

Pumice (Vesicular volcanic glass)

Rounded gray pebble, likely quartzite

Quartzite (predominantly crystalline quartz, SiO₂); identification is tentative from the image

Granite

Phaneritic plutonic felsic rock

Laterite

Fe2O3 and Al2O3 rich residual rock

Sandstone

Clastic Sedimentary Rock

Red gemstone ring (likely synthetic ruby or red glass)

Possibly corundum (Al₂O₃), chromium-colored; identity cannot be confirmed from the image

White Opal

Hydrated Amorphous Silica (SiO2·nH2O)

Yellow chalcedony (possibly iron-stained agate)

Microcrystalline quartz, SiO₂

Granite

Phaneritic Plutonic Felsic Rock

Granite

Granite (Phaneritic igneous rock)