Gold Nugget
Native Gold (Au)
mineral
Category
Man Made Material (Metal)
Browse man made material (metal) specimens identified by the Rock Identifier community.
Gold Nugget
Native Gold (Au)
mineral
Gold Nugget
Native Gold (Au)
mineral
Granite
Plutonic Igneous Rock (composed typically of SiO2, Al2O3, K2O, Na2O, CaO)
igneous
Gold Nugget
Native Gold (Au)
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Slag
Anthropogenic Iron Silicate Glass
mineral
Gossan (Iron Hat)
Limonitic Gossan (predominantly FeO(OH)·nH2O)
igneous/metamorphic derivative
Beaded Jewelry (Assorted Gemstones)
Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ
Mineral, Jewelry
Chert Pebble/Nodule
Chert (a microcrystalline or cryptocrystalline sedimentary form of quartz, SiO2)
Sedimentary
Gossan (Iron Hat)
Limonitic Gossan (Fe-oxide/hydroxide complex)
igneous
Gold Ore in Matrix
Native Gold (Au) in Quartz/Host Rock
mineral
Native Copper
Native Copper (Cu)
mineral
Serpentinite
Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)
metamorphic
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Quartz Veinated Sandstone or Siltstone
Silicon Dioxide (SiO2) within a clastic sedimentary matrix
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Aventurine (Green)
Silicon Dioxide (Quartz variety) containing Fuchsite - SiO2 + K(Al,Cr)2AlSi3O10(OH)2
mineral
Chondrite Meteorite
Stony Meteorite (Chondrite)
igneous
Mixed Gemstone Beaded Jewelry
Various minerals (e.g., Quartz varieties like Rose Quartz, Amethyst; Peridot; Garnet; etc.)
Mineral
Soapstone (Talc-Schist)
Steatite (composed primarily of Talc: Mg3Si4O10(OH)2)
metamorphic
Hypersthene
Hypersthene (Magnesium Iron Silicate - (Mg,Fe)SiO3)
mineral
Granitic Pegmatite
Pegmatite (Quartz: SiO2, Feldspar: KAlSi3O8, Mica: KAl2(AlSi3O10)(OH)2)
Igneous
Industrial Diamond (Bort or Boart)
Diamond (pure Carbon, C)
mineral
Beryl (Emerald Variety)
Beryllium Aluminum Silicate (Be3Al2(SiO3)6)
mineral
Quartzite River Rock
Quartzite (primarily SiO2)
metamorphic
Olivine in Basalt matrix
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
igneous
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Gossan with Copper Carbonate (Chrysocolla/Malachite)
Ferruginous Oxide (Gossan) with Cu2CO3(OH)2 (Malachite) or (Cu,Al)2H2Si2O5(OH)4 (Chrysocolla)
Mineral/Sedimentary Interface
Fluorite (often called Rainbow Fluorite or Purple-Green Fluorite)
Calcium Fluoride (CaF2)
mineral
Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Gold Nugget
Native Gold (Au)
mineral
Purple Lepidolite with Quartz
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Gold Nugget
Native Gold (Au)
mineral
Pyrite (on a metal substrate)
Iron Sulfide (FeS2)
mineral
Silver (Sterling Silver Jewelry)
Argentum (Ag) mixed with Copper (Cu)
mineral
Rough Aquamarine
Beryl (Be₃Al₂Si₆O‑₁₈)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Lepidolite Polished Point
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral