Not A Rock (Man Made Origin)

Sandstone (Greywacke)

Arenite / Wacke (Mainly SiO2 with various lithic fragments)

Quartzite

Metamorphic Quartzite (SiO2)

Likely iron-rich rock or metallic mineral fragment

Uncertain; possibly limonite/goethite-rich material or weathered iron meteorite fragment

Polished amethyst bead fragments

Amethyst, purple quartz (SiO₂)

Green Agate

Silicon dioxide (SiO₂)

Breccia

Clastic Breccia (General mineral composition depends on fragments, often SiO2 or CaCO3)

Basalt

Basalt (Extrusive Igneous Rock)

Tumbled opalite (likely synthetic glass)

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

Stromatolite

Laminated biogenic sedimentary structure (formed by Cyanobacteria)

Granite Cobble

Granite (Porphyritic/Coarse-grained)

Tumbled red jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides

Weathered quartz-rich rock, possibly granite or quartzite

Indeterminate; likely quartz–feldspar aggregate (SiO₂ with feldspar minerals)

Ocean Jasper

Silicon Dioxide (SiO2) with various inclusions

Synthetic Wolf Plush (Non-mineral)

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

Note: Item is not a geological specimen

Guitar Components (Steel, Nickel, Plastic, Wood)

Possible basaltic volcanic rock or iron-rich meteorite

Likely basalt (plagioclase–pyroxene rock); meteorite status cannot be confirmed visually

Iron-stained quartz-rich rock, possibly jasperized quartz or quartzite

Mostly SiO₂ quartz with iron oxides/hydroxides (hematite, goethite) and possible clay or feldspar impurities

Basalt River Pebble

Basalt

Green-and-white quartz-rich rock, likely chrysoprase or serpentine-bearing stone

Uncertain; possible chrysoprase (microcrystalline quartz, SiO₂) or serpentinite (magnesium silicate minerals)

Weathered iron-rich rock fragment

Likely limonite/goethite with hematite and iron-bearing silicates; exact identification requires testing

Granite pebble

Granite, a coarse-grained felsic intrusive igneous rock

Emerald In Matrix

Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium

Blue Lace Agate

Chalcedony (SiO2) with trace inclusions

Green sea glass (likely)

Anthropogenic glass, not a mineral; composition commonly soda–lime silicate glass

Orange glassy slag (industrial by-product)

Iron-rich silicate glass; composition varies, commonly Fe–Ca–Al silicate

Likely dyed or painted stone

Unidentified natural rock; vivid purple, orange, and pink coloration appears to be a surface coating or pigment, so the underlying rock cannot be reliably identified from the image.

Likely basalt (possibly iron-rich slag or meteorite mimic)

Basalt; chiefly plagioclase feldspar, pyroxene, and often olivine

Weathered quartz-rich rock, possibly quartzite or quartz vein material

Quartz-dominant aggregate; chiefly SiO₂, with likely iron-oxide staining and minor feldspar or mica

Asphalt (Bituminous Pavement Bit)

Bitumen-bound aggregate (Petrochemical-bound composite)

Turquoise

Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O

Polished, carved gemstone (possibly dyed agate or glass-like material)

Unconfirmed from the image; no specific mineral can be identified reliably

Rough ruby-bearing corundum (identification uncertain)

Corundum (Al₂O₃), possibly ruby; the image alone cannot confirm ruby or distinguish it from other red-purple minerals.

Slate

Metamorphic Pelitic Rock

Likely iron-rich metamorphic rock (possibly hematite-rich ironstone)

Uncertain from the image; possible hematite-bearing ironstone, chiefly Fe₂O₃ with associated silicate minerals

Likely serpentinite (serpentine-rich rock)

Serpentinite, composed mainly of serpentine-group minerals (e.g., antigorite, lizardite, or chrysotile)

Coquina

Bioclastic Limestone (composed primarily of CaCO3)

Basalt (Weathered Pebble)

Basalt (Mafic Extrusive Igneous Rock)

Sandstone (Quartzose Sandstone)

Clastic Sedimentary Rock (primarily SiO2)

Quartz

Silicon Dioxide (SiO2)

Pearls

Pearl: biomineralized aragonite (CaCO₃) and conchiolin

Turquoise

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

Crushed Limestone

Sedimentary Calcium Carbonate (CaCO3)