Rough Diamond
Native Carbon (C)
Category
Browse man made object (metalwork) specimens identified by the Rock Identifier community.
Rough Diamond
Native Carbon (C)
Dendritic Quartz Pebble
Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions
Serpentinite
Serpentinite (group of hydrous magnesium iron phyllosilicates)
Serpentinite
Serpentine rock (Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4
Ferromanganese Nodule
Polymetallic Nodule (composed primarily of MnO2 and Fe2O3)
Diamond
Carbon (C)
Diamond
C (Carbon)
Serpentine
Serpentine group ((Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)
Olivine
(Mg,Fe)2SiO4 (Magnesium Iron Silicate)
Rose Quartz Druzy
Silicon Dioxide (SiO2)
Peridot
Olivine ((Mg, Fe)2SiO4)
Pink Pearl
Calcium Carbonate (Aragonite/Calcite) with Conchiolin (CaCO3)
Moss Agate
Chalcedony (Silicon Dioxide) with dendritic inclusions (SiO2)
Pallasite Meteorite (Sliced and Polished)
Pallasite (Iron-Nickel Matrix with Olivine crystals)
Moss Agate
Chalcedony (Silicon Dioxide / SiO2)
Rhodonite with Manganese Oxides
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Rhodonite
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Serpentine
Antigorite / Lizardite / Chrysotile mix; (Mg, Fe)3Si2O5(OH)4
Moss Agate
Chalcedony (Silicon Dioxide) with dendritic inclusions (SiO2)
Diamond (Colorless/White)
Carbon (C)
Shiva Lingam
Cryptocrystalline Quartz (Jasper/Chalcedony) with Iron Oxide inclusions
Diamond
Carbon (C)
Kimberlite with Diamond
Kimberlite (Porphyritic Peridotite)
Serpentinite (often called Jade or Nephrite substitute)
Serpentinite (composed primarily of Antigorite, Lizardite, or Chrysotile)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Rough Diamond
Diamond (pure carbon / C)
Peridot
Olivine (Mg, Fe)2SiO4
Green Moss Agate
Agate (Silicon Dioxide - SiO2 with inclusions of Manganese/Iron oxides)
Conglomerate
Conglomerate (a clastic sedimentary rock)
Amethyst
SiO2 (Silicon Dioxide)
Azurite Geode
Azurite (Cu3(CO3)2(OH)2)
Chert / Jasper
Microcrystalline Quartz (SiO2)
Banded Chert
Microcrystalline Quartz (SiO2)
Druzy Agate (Star-cut Geode Slice)
Silicon Dioxide (SiO2) - Microcrystalline and Macrocrystalline Quartz
Sandstone with Manganese Dendrites/Oxide coatings
Arenite with Pyrolusite and Romanechite (MnO2)
Peridotite (Dunite)
Peridotite (mostly Olivine: (Mg,Fe)2SiO4)
Peridotite
Ultramafic intrusive rock (Peridotite)
Rose Quartz (or Quartzite)
Silicon Dioxide (SiO2)
Chert (Flint variety)
Silicon Dioxide (SiO2)
Serpentine
Antigorite, Lizardite, or Chrysotile (Mg, Fe)3Si2O5(OH)4
Crazy Lace Agate
Silicon Dioxide (SiO2) with iron and aluminum inclusions
Chalcedony (River Stone)
Microcrystalline Quartz (SiO2)