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