Not A Rock

Not a rock

Not a rock

Not a rock

Not a rock

Not a rock

Not a rock

Pink granite

Granite, chiefly quartz, potassium feldspar, and plagioclase with minor mica

Clear gemstone earring (likely cubic zirconia)

Cubic zirconia (synthetic zirconium dioxide, ZrO₂); identification from the image is uncertain

Serpentinite

Serpentinite, a rock composed mainly of serpentine-group minerals (approximately Mg₃Si₂O₅(OH)₄)

Tumbled granite

Granite, a coarse-grained felsic intrusive igneous rock

Not a geological specimen

N/A (man-made object)

Granite

Granite — a coarse-grained felsic intrusive igneous rock, typically composed of quartz, feldspar, and mica

Likely serpentinite (green serpentine rock)

Serpentinite, composed chiefly of serpentine-group minerals (antigorite, lizardite, and/or chrysotile)

Tumbled jasper pebble

Jasper, an opaque microcrystalline variety of quartz (SiO₂), commonly colored by iron oxides and hydroxides

Red jasper

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

Pink feldspar-rich granite

Granite, composed chiefly of quartz, potassium feldspar, and plagioclase, with minor mica or other minerals

Synthetic Wolf Plush (Non-mineral)

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

Tumbled red jasper

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

Pearls

Pearl: biomineralized aragonite (CaCO₃) and conchiolin

Polished red jasper

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

Turquoise

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

Druzy quartz on matrix

Quartz (SiO₂), microcrystalline crystal coating

Lapis Lazuli (Low Grade)

Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2)

Bauxite

Bauxite (Mixture of Hydrous Aluminum Oxides)

Chert (likely chalcedony-rich flint)

Microcrystalline quartz, SiO₂ (quartz/chalcedony)

Red-and-green jasper

Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides and possibly chlorite/epidote

Weathered granitic rock fragment

Granite, likely quartz–feldspar–biotite aggregate

Lapis Lazuli

Lapis lazuli (Complex silicate rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)

Pink granite

Granitic rock, chiefly quartz, alkali feldspar, plagioclase, and biotite/hornblende

Bornite (“peacock ore”), likely weathered copper sulfide

Bornite, Cu₅FeS₄; possibly chalcopyrite, CuFeS₂, with iridescent tarnish

Rounded pink granite cobble

Granite, chiefly quartz–alkali feldspar–plagioclase–biotite

Lapis Lazuli (Tumbled)

Lazurite-dominated contact metamorphic rock

Lapis Lazuli

Na8[Al6Si6O24]Sn (Lazurite-rich metamorphic rock)

Bauxite

Bauxite (principal ore of aluminum, primarily Al(OH)3)

Dark speckled granite pebble

Granite, a quartz–feldspar–mica plutonic rock

Lapis Lazuli

Lazurite-dominant Metamorphic Rock (complex aluminosilicate)

Weathered granite or granitic gneiss pebble

Granite: quartz + feldspar + mica; possibly weakly foliated gneiss

Cowrie shell

Marine gastropod shell; likely a cowrie (family Cypraeidae), species not identifiable from the image

Bauxite

AlOx(OH)3-2x (mixture of Gibbsite, Boehmite, and Diaspore)

Lapis Lazuli (Tumbled Stone)

Na6Ca2(Al6Si6O24)(SO4,S,Cl)2 (Lazulite-rich Metamorphic Rock)

Lapis Lazuli (Tumbled Specimen)

Lapis Lazuli (Aggregate rock containing Lazurite: (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)

Metallic Ornament / Jewelry

N/A - This is an artificial object, not a geological specimen.

Red coral beads

Precious coral, commonly Corallium rubrum (calcium-carbonate skeleton)

Bauxite

Bauxite (Al(OH)3, AlO(OH))

Bauxite

Bauxite (Al(OH)3, AlO(OH))