Quartz Vein in Host Rock (Likely Slate or Shale)
Hydrothermal Quartz (SiO2) in Pelitic host rock
Category
Browse metal (elemental mineral) specimens identified by the Rock Identifier community.
Quartz Vein in Host Rock (Likely Slate or Shale)
Hydrothermal Quartz (SiO2) in Pelitic host rock
Gossan (Iron Hat) with Quartz and Chlorite
Limonite/Goethite-rich Gossan (FeO(OH)·nH2O) with inclusions of Quartz and Chlorite
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Opalite
Synthetic Glass (SiO2 + impurities)
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Diamond (set in jewelry)
Diamond (Carbon, C)
Milky or Iron-Stained Quartz
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Milky Quartz
Silicon Dioxide (SiO2)
Amber Inlay Jewelry
Fossilized Resin (C10H16O)
Limonite with Quartz (Gossan)
Hydrated iron(III) oxide-hydroxide mixture (FeO(OH)·nH2O) with Silicon Dioxide (SiO2)
Iron Meteorite Fragment
Siderite (Geological term for iron meteorite class - Fe/Ni alloy)
Quartz Pebble
Silicon Dioxide (SiO2)
Greenstone or Chlorite Schist
Greenschist / Chlorite schist
Rhodochrosite (Beads) and Citrine (Pendant)
Rhodochrosite (MnCO3) and Quartz variety Citrine (SiO2)
Silver (Native or Alloyed)
Ag (Argentum)
Copper Bullion Round
Native Copper (refined), Cu
Pyrite in Quartz
Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)
Blue Calcite
Calcium Carbonate (CaCO3)
Barite
Barium Sulfate (BaSO4)
Native Copper (in coinage alloy)
Copper (Cu)
Serpentinite
Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)
Limonite (Iron Stone/Gossen)
Limonite (FeO(OH)·nH2O)
Red Sandstone (Iron-Rich)
Arenite (Fe2O3)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Pallasite Meteorite (likely Imilac or Brenham)
Stony-Iron Meteorite (Pallasite)
Gold Nugget
Native Gold (Au)
Quartz Vein in Host Rock (Gossanous Matrtix)
Silicon Dioxide (SiO2) with iron oxides (Limonite/Hematite)
Cubic Zirconia (Diamond Simulant)
Zirconium Dioxide (ZrO2)
Emerald and Diamond (Jewelry Setting)
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities) and Carbon (C)
Lavender Quartz (appearing as beads) and Druzy Quartz
Silicon Dioxide (SiO2)
Aura Quartz Geodes (Lab-Altered)
Silicon Dioxide (SiO2) with Metallic Vapor Deposition
Natural Gold Nugget
Native Gold (Au)
Sandstone (Red)
Arenite (Fe2O3 heavy)
Gold
Gold (Au)
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
Gold
Native Gold (Au)
Eudialyte
Eudialyte (Na4(Ca,Ce)2(Fe2+,Mn,Y)ZrSi8O22(OH,Cl)2)
Milky Quartz
Silicon Dioxide (SiO2)