Pyrite in Quartz
Iron Sulfide (FeS2) embedded in Silicon Dioxide (SiO2)
mineral
Category
Man Made Object (Metal Alloy)
Browse man made object (metal alloy) specimens identified by the Rock Identifier community.
Learn about Man Made Object (Metal Alloy) in the encyclopedia
View all →
Lepidolite
K(Li,Al)3(Al,Si,3O10)(F,OH)2
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Quartzite
Quartzite
metamorphic
Halite
Halite (NaCl)
mineral
Banded Iron Formation (BIF)
Banded Iron Formation (BIF), SiO2 / Fe2O3
sedimentary
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Gold Nugget
Native Gold (Au)
mineral
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Olivine
(Mg,Fe)2SiO4
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Hematite Nodule
Hematite (Fe2O3)
mineral
Rough Black Diamond (Bort / Carbonado)
Diamond (C)
mineral
Hematite Nodule
Hematite (Fe2O3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Optical Calcite (Iceland Spar)
Calcium Carbonate (CaCO3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Gold Ore
Native Gold (Au) in Quartz or Silicate matrix
mineral
Coquina
Biogenic Limestone (Calcite/Aragonite base, CaCO3)
sedimentary
Basalt River Pebble
Basalt
igneous
Scoria
Scoria (a vesicular basalt or andesite)
igneous
Sandstone (with Iron Staining)
Sandstone (mainly Quartz, SiO2, with Iron Oxides like Goethite/Hematite)
sedimentary
Chert (variations include Flint or Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Pyrite with Galena and Sphalerite on Matrix
Iron Sulfide (FeS2), Lead Sulfide (PbS), Zinc Sulfide (ZnS)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Olivine (Peridotite / Dunite Pebble)
(Mg,Fe)2SiO4 (Magnesium Iron Silicate)
mineral
Green Banded Chert (Agate/Jasper)
Silicon Dioxide (SiO2) with trace impurities of Chlorite or Glauconite
sedimentary
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Olivine (Peridot Stone)
(Mg, Fe)2SiO4 (Magnesium Iron Silicate)
mineral
Moss Agate
Silicon dioxide (SiO2) with inclusions
Mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Limonite (Yellow Ochre)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
mineral
Rhodonite
Rhodonite (MnSiO3)
mineral
Granite
Felsic intrusive igneous rock
igneous
Pyrite
Iron Sulfide (FeS2)
mineral
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Graphite
Graphite (C)
mineral
Diamond (set in a eternity ring band)
Carbon (C)
gemstone
Titanium Aura Quartz (Aura Quartz)
Titanium-coated Silicon Dioxide (SiO2)
mineral
Chrysoprase
Chalcedony (cryptocrystalline quartz) with nickel inclusions; SiO2
Mineral
Green Fluorite
Calcium Fluoride (CaF2)
mineral