Zinc Alloy (Silver-plated)
Zinc Alloy Casting (Zn-Al-Mg-Cu)
mineral (refined metal)
Category
Mineral (Refined Metal)
Browse mineral (refined metal) specimens identified by the Rock Identifier community.
Silver (Native Element)
Ag (Argentum) - 90% Silver, 10% Copper alloy in specimen
mineral
Silver (Native Silver/Alloy Specimen)
Ag (Native Silver element), specifically a 90% Ag / 10% Cu alloy
mineral
Metal Alloy (Jewelry)
Not a naturally occurring rock or mineral; likely a metal alloy for jewelry. Possible compositions include sterling silver (92.5% silver, 7.5% copper), or other silver/gold alloys.
Man-made Material (jewelry, metal alloy)
Gold and Silver (Metal Components of an Antique Pocket Watch)
Native Gold (Au) and Native Silver (Ag)
mineral
Copper Bullion Round
Native Copper (refined), Cu
mineral
Gold Ore in Quartz
Native Gold (Au) in Quartz (SiO2)
mineral
Bauxite Ore
Hydrated aluminum oxides (e.g., Gibbsite Al(OH)3, Boehmite ̲̲̲̲AlOOH, Diaspore ̲̲̲̲AlOOH)
Mineral
Gold
Native Gold (Au)
mineral
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).
Man-made material (metal)
Gold (Processed)
Gold (Au)
Metal (Elemental Mineral)
Gold
Aurum (Au)
Mineral (Metal)
Silver (Native Element)
Silver (Ag) in an alloy of 90% Silver and 10% Copper
mineral
Gold (10K Alloy)
Aurum (Au) with alloying metals (Cu, Ag, Zn)
mineral
Silver (Native Silver Mineral)
Ag (Native Silver), Alloyed 90% Ag / 10% Cu
mineral
Goldstone (Red)
Aventurine Glass (Cupriferous glass)
Synthetic Glass (Man-made)
Ferruginous Sandstone (Gozzan)
Iron-rich clastic sedimentary rock with Limonite/Goethite
sedimentary
Metal Chain Belt with Square Plates
Not applicable (man-made)
Man-made Object (Metalwork)
Native Copper
Native Copper (Cu)
mineral
Pallasite Meteorite
Pallasite (ST-class)
mineral
Ferruginous Quartz
SiO2 (Silicon Dioxide) with Iron Oxide inclusions (FeO(OH) / Fe2O3)
mineral
Man-made Metal Pin (Non-geological)
Antimony-Lead Alloy or Zinc/Brass Base with Electroplating
Metal Alloy / Manufactured Artifact
Metal Chain (Likely Steel or a Steel Alloy)
Steel (primarily iron and carbon); specific alloy unknown
Man-made Object (Metal/Alloy)
Iron (Hematite variety)
Iron (Fe) / Hematite (Fe2O3)
mineral
Gold (Elemental Metal)
Gold (Au)
Mineral
Schist (Diamond Drill Core)
Mica Schist
metamorphic
Aluminum Slag
Anthropogenic Aluminum (Al)
mineral
Bismuth
Bismuth (Bi)
mineral
Aluminum Slag
Anthropogenic Aluminum (Al)
mineral
Bismuth Crystal
Bismuth (Bi)
mineral
Man-made Jewelry Charm (Enameled Metal)
Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.
Synthetic / Manufactured Artifact
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
mineral
Quartz Vein in Host Rock (Gneiss/Schist)
Silicon Dioxide (SiO2) within a metamorphic matrix
metamorphic
Gold Ore (Auriferous Quartz with Chalcopyrite/Pyrite)
Au (Native Gold) in Quartz (SiO2) with FeS2 (Pyrite) or CuFeS2 (Chalcopyrite)
Mineral
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Native Copper with Cuprite and Quartz
Copper (Cu), Cuprite (Cu2O), Quartz (SiO2)
mineral
Silver (Sterling Silver)
Argentum (Ag) mixed with Copper (Cu); Formula: Ag+Cu
mineral
Beryl (likely Aquamarine or Green Beryl)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Diamond (in jewelry)
Carbon (C)
mineral
Gold Nugget
Native Gold (Au)
mineral
N/A - Man-made object (Jewelry Chain)
Antiqued or Oxidized Metal Chain (often Steel or Brass)
Mineral (processed metal)
Native Silver
Silver (elemental Ag)
mineral