This Is Not A Rock Or Mineral

Bauxite

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

Bauxite

Aluminium ore (Hydrated aluminium oxides AlOx(OH)3-2x)

Lapis Lazuli (Tumbled Stone)

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

Bauxite

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

Fossil sea urchin (echinoid)

Fossilized echinoid test, likely a regular sea urchin (Class Echinoidea); exact genus and age require locality and examination

Iron-rich weathered rock or limonite/goethite nodule

Limonite (mixture dominated by goethite, FeO(OH)·nH₂O), possibly with quartz or clay

Bauxite

Bauxite (Mixture of Al(OH)3, AlO(OH), and Fe2O3)

Cobalt Glass Slug (Man-made Glass)

Amorphous Silica with Cobalt Oxide (SiO2 + CoO)

Weathered iron-rich rock or concretion

Likely limonite/goethite-bearing concretion; exact identification requires testing

Weathered iron-rich rock fragment

Provisional identification: limonite/goethite-rich material, likely an ironstone fragment

Likely weathered brown rock or iron-rich mineral specimen

Indeterminate from image; possible limonite/goethite-rich material

Chakra Stone (Composite / Man-made Bonded Gemstones)

Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)

Bauxite

Bauxite (mixture of Hydrous Aluminum Oxides)

Lapis Lazuli

Complex rock primarily containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2

Native metal specimen, likely galena or metallic slag

Probably galena (lead sulfide, PbS); identification is uncertain from the image alone

Weathered iron-rich rock (possibly ironstone)

Indeterminate ferruginous rock; likely iron-oxide-cemented sandstone or ironstone

Bauxite

Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))

Bauxite (Pisolitic Bauxite)

Bauxite (mixture of Hydrous Aluminum Oxides)

Bauxite

Alumina ore (Mixture of Gibbsite, Boehmite, and Diaspore)

Fossilized ammonite

Ammonoidea (likely a small, chambered ammonite fossil)

Polished brecciated jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), with iron-oxide coloration and possible breccia fragments

Limonite (Yellow Ochre)

Hydrated Iron Oxide (FeO(OH)·nH2O)

Polished fossiliferous limestone

Bioclastic carbonate rock, primarily calcite (CaCO₃)

Bauxite

Bauxite (Mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))

Lapis Lazuli

Na8(Al6Si6O24)S2 (composed primarily of Lazurite, Calcite, and Pyrite)

Lapis lazuli

Lapis lazuli; primarily lazurite (Na₃Ca(Si₃Al₃)O₁₂S), with calcite and pyrite

Fossilized tooth, likely mammoth or mastodon molar fragment

Proboscidean molar enamel and dentin; Mammuthus or Mammut sp. (tentative)

Bauxite (Laterite Clay)

Bauxite (mixture of Hydrous Aluminum Oxides: Gibbsite Al(OH)3, Boehmite and Diaspore AlO(OH))

Acrylic or Resin (Synthetic Imitation)

Polymethyl Methacrylate (PMMA) or Polyepoxide

Everest

Canis lupus familiaris (Siberian Husky)

Weathered, iron-stained metamorphic rock (probable schist or gneiss)

Quartz–feldspar–mica metamorphic rock; exact identification requires a fresh surface and thin-section or mineral tests

Polished amber

Fossilized tree resin (primarily organic polymerized diterpenes)

Note: Item is not a geological specimen

Polyester mesh and Ethylene-vinyl acetate (EVA) polymer

Metal Alloy (Likely Pewter or Sterling Silver)

Not a natural geological specimen; composed of refined metals. If pewter, it's a tin-based alloy. If sterling silver, it's 92.5% silver and 7.5% other metals (usually copper).

Abbey Bominable (Monster High character)

Anthropomorphic Yeti / Digital Animation

Amber

Succinite (Fossilized Tree Resin)

Man-made Blank Ammunition (Brass)

CuZn (Cartridge Brass - roughly 70% Copper, 30% Zinc)

Granite, possibly granodiorite

Coarse-grained felsic plutonic rock; chiefly quartz (SiO₂), potassium feldspar and plagioclase feldspar, with biotite and/or hornblende

Note: Item is not a geological specimen

n/a

Lapis Lazuli

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

Opalite (Man-made Glass)

Synthetic Opalised Glass

Honey-colored chalcedony (possibly yellow/orange agate or carnelian)

Chalcedony, a microcrystalline variety of quartz; SiO₂. The color may result from iron-oxide inclusions. Exact identification is uncertain from a photograph alone.