Goldstone
Aventurine Glass (Man-made glass with copper inclusions)
Category
Browse anthropic metallic specimen specimens identified by the Rock Identifier community.
Goldstone
Aventurine Glass (Man-made glass with copper inclusions)
Native Copper
Native Copper (Cu)
Quartz Vein in Basalt or Slate
Hydrothermal quartz vein traversing mafic host rock
Bog Iron (Limonite Concretion)
Limonite (FeO(OH)·nH2O)
Diamond
Carbon (C)
Gold-bearing Quartz
Auriferous Quartz (SiO2 with native Au)
Banded Iron Formation (BIF)
Banded Iron Formation (SiO2 + Fe2O3)
Hematite
Iron(III) oxide (Fe2O3)
Gold Nugget
Native Gold (Au)
Hematite
Hematite (Iron (III) oxide, Fe2O3)
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
Aura Quartz
Silicon Dioxide (SiO2) with metallic vapor coating
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
Graphite
Graphite (C)
Pyrite (Fool's Gold)
Iron Pyrite (FeS2)
Pyrite
Iron Sulfide (FeS2)
Sunstone (Feldspar variety)
Plagioclase Feldspar (Na,Ca)(Si,Al)3O8 with Hematite/Goethite inclusions
Biotite Schist (with Garnet and Pyrite)
K(Mg,Fe)3AlSi3O10(OH,F)2 (Biotite focus)
Gold in Quartz Matrix
Native Gold (Au) with Quartz (SiO2) and Slate/Shale
Quartz with Pyrite
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
Pyrite in Slate
Iron Sulfide (FeS2) in Slate host matrix
Iron-rich metamorphic rock, likely banded iron formation fragment
Hematite–magnetite-rich quartzite (BIF); Fe₂O₃/Fe₃O₄ with SiO₂
Botryoidal Hematite
Iron(III) oxide (Fe2O3)
Pyrite (on host rock)
Iron Sulfide (FeS2)
Gold Nugget
Native Gold (Au)
Native Gold Nuggets
Native Gold (Au)
Basalt River Stone
Extrusive mafic igneous rock (Basalt)
Quartz with Chalcopyrite (or Pyrite)
Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)
Possible iron meteorite
Iron meteorite, likely kamacite–taenite alloy
Metallic sulfide ore, likely galena-bearing rock
Galena (lead sulfide, PbS), possibly with pyrite or other sulfides
Quartz Vein in Host Rock
Silicon dioxide (SiO2) veining in silicate matrix
Pyrite
Iron Sulfide (FeS2)
Possible iron-rich meteorite fragment
Unclassified stony-iron or iron meteorite; exact identification requires testing
Pyrite Sun
Iron Sulfide (FeS2)
Iron-rich quartzite or weathered ironstone pebble
Quartzite, chiefly SiO₂, with iron-oxide minerals (hematite/goethite)
Raw Sunstone
Plagioclase Feldspar (Na, Ca)(Al, Si)4O8
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Gold Ore in Quartz
Auriferous Quartz (Gold: Au; Quartz: SiO2)
Aura Quartz (Pink/Rose Aura Quartz)
Silicon Dioxide (SiO2) bonded with Platinum and/or Silver
Magnetite with Serpentine
Magnetite (Fe3O4) in Serpentine Matrix
Sandstone with Manganese Dendrites/Oxide coatings
Arenite with Pyrolusite and Romanechite (MnO2)
Weathered volcanic rock, likely andesite or basalt
Fine-grained mafic to intermediate volcanic rock; probable andesite–basalt, compositionally dominated by plagioclase with pyroxene and possibly alteration minerals