Pyrite
Iron Sulfide (FeS2)
Category
Browse mineral (metal) specimens identified by the Rock Identifier community.
Pyrite
Iron Sulfide (FeS2)
Pyrope Garnet (Bohemian Garnets)
Pyrope (from the group Mg3Al2(SiO4)3)
Iron Meteorite Fragment
Siderite (Geological term for iron meteorite class - Fe/Ni alloy)
Jewelry Chain with Blue and Clear Gemstones (Likely Cubic Zirconia)
Cubic Zirconia (ZrO₂), Silver or White Gold/Platinum Alloy
Aura Quartz (Pink/Rose Aura Quartz)
Silicon Dioxide (SiO2) bonded with Platinum and/or Silver
Black Onyx
Onyx (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Gold
Native Gold (Au)
Quartzite Pebble
Quartzite (primarily SiO2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Pyrite (on Quartz/Host Rock)
Iron Sulfide (FeS₂)
Cubic Zirconia (Man-made)
Cubic Zirconia (ZrO2) with Enamel and Metal Alloy
Slag (Industrial Glassy Byproduct)
Anthropogenic silicate byproduct (Slag)
Note: Item is not a geological specimen
Guitar Components (Steel, Nickel, Plastic, Wood)
Graphite
Graphite (Carbon, C)
Milky Quartz
Silicon Dioxide (SiO2)
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Slag
Anthropogenic Vitrophyre (Iron or Smelting Slag)
Pyrite in Quartz
Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)
Pallasite Meteorite
Pallasite (Iron-Nickel Matrix with Olivine/Peridot inclusions)
Marble
Recrystallized Calcite (CaCO3)
Pyrite (Iron Pyrites)
Iron Sulfide (FeS2)
Serpentinite
Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)
Diamond (in a metal ring setting)
Diamond (Pure Carbon, C)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Gold Nugget
Native Gold (Au)
Cubic Zirconia (CZ)
Zirconium dioxide (ZrO2)
Red Cubic Zirconia (Simulated Garnet)
Zirconium Dioxide (ZrO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartzite Cobble
Metamorphosed Quartz Sandstone (primarily SiO2)
South Korean 100 Won Coin (Cupronickel)
Cupronickel Alloy (75% Cu, 25% Ni)
Copper-bearing Quartz (likely Malachite on Quartz matrix)
Cu2CO3(OH)2 (Malachite) on SiO2 (Quartz)
Milky Quartz
Silicon Dioxide (SiO2)
Green Aura Quartz
Silicon Dioxide (SiO2) bonded with metallic vapors (typically Gold, Chromium, or Titanium)
Not a geological specimen
N/A (man-made object)
Transit Token (RTD Denver)
Nickel-plated brass or bronze alloy (Cu-Sn-Zn-Ni)
Zircon
Zirconium Silicate (ZrSiO₄)
Celestite (Celestine)
Strontium sulfate (SrSO4)
Aqua Aura Quartz
Titanium/Gold-coated Silicon Dioxide (SiO2)
Gold-bearing Quartz
Auriferous Quartz (SiO2 with Native Gold inclusion)
Gold Nugget
Native Gold (Au)