Chert (Flint)
Silicon Dioxide (SiO2)
Category
Browse man made material (metal) specimens identified by the Rock Identifier community.
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (SiO2)
Chert (Green Chert or Jasper)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (varietal Chalcedony or Flint)
Silicon dioxide (SiO2) - Microcrystalline Quartz
Chert (Flint)
Microcrystalline Quartz (SiO2)
Quartzite
Metamorphic Quartzite (SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Gold and Silver (Metal Components of an Antique Pocket Watch)
Native Gold (Au) and Native Silver (Ag)
Chert (Flint)
Silicon Dioxide (SiO2)
Silver Nuggets (Natural or Cast)
Native Silver (Ag)
Sandstone
Arenite (variable SiO2 composition)
Weathered basalt or other dark volcanic rock
Likely basalt; predominantly plagioclase feldspar and pyroxene, possibly olivine and iron oxides
Diorite (Gneissic)
Diorite
Iron-rich meteorite candidate
Undetermined meteoritic iron–nickel material; possibly an ordinary chondrite or weathered iron meteorite
Diamond
Carbon (C)
Pink Granite
Phaneritic Felsic Igneous Rock (composed of orthoclase, quartz, and plagioclase)
Chert (Flint)
Chert (SiO2)
Vesicular basalt (weathered lava rock)
Basalt; primarily plagioclase feldspar, pyroxene, and commonly olivine (mafic volcanic rock)
Yellow-orange faceted gemstone, likely citrine or yellow topaz
Citrine: quartz, SiO₂; yellow topaz: Al₂SiO₄(F,OH)₂
Iron-stained quartz-rich rock, possibly jasper or chert
Microcrystalline quartz (SiO₂) with iron oxides/hydroxides
Chalcedony (Agate / Jasper Specimen)
Silicon Dioxide (SiO2)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Fossilized Shark Tooth (Eroded)
Carcharodon sp. or Otodus sp. fragment (likely)
Quartzite
Quartzite (mostly SiO2)
Coquina
Biogenic Limestone (Coquina)
Sandstone
Arenite (primarily SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Arenite (SiO2 based clastic rock)
Chalk
Calcium carbonate (CaCO3)
Diamond
Carbon (C)
Polished red gemstone pendant, likely red jasper or brecciated jasper
Jasper: microcrystalline quartz (SiO₂), commonly with hematite or iron-oxide inclusions
Ferruginous Breccia
Breccia with Iron-rich (Hematite/Goethite) Matrix
Native Copper with Cuprite and Quartz
Copper (Cu), Cuprite (Cu2O), Quartz (SiO2)
Silver (Sterling Silver)
Argentum (Ag) mixed with Copper (Cu); Formula: Ag+Cu
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Sandstone
Sedimentary Rock (Quartz arenite)
Iron-rich meteorite candidate
Undetermined Fe–Ni meteorite, possibly an ordinary chondrite or iron meteorite
Flint
Silicon dioxide (SiO2)