Quartz Vein on Matrix
Silicon Dioxide (SiO2)
Category
Browse mineral like byproduct specimens identified by the Rock Identifier community.
Quartz Vein on Matrix
Silicon Dioxide (SiO2)
Milky Quartz with Chlorite inclusion
Silicon Dioxide (SiO2) with Chlorite group inclusions
Limonite/Ironstone
Limonite (Hydrous ferric oxides), FeO(OH)·nH2O
Aventurine Quartz
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
Quartz Pebble
Silicon Dioxide (SiO2)
Amber
Succinite (fossilized resin, C10H16O)
Yellow Quartz
Silicon Dioxide (SiO2)
Clear Quartz (faceted) / Diamond Simulant
Silicon Dioxide (SiO2) / Cubic Zirconia (ZrO2)
Greenschist (Greenstone River Pebble)
Greenschist (Chlorite Schist)
Serpentine
Serpentinite (Mg, Fe, Ni)3Si2O5(OH)4
Greenstone Pebble
Metabasalt (often containing chlorite, actinolite, or epidote)
Vesicular Basalt
Aphanitic Mafic Volcanic Rock
Quartz Geode
Silicon Dioxide (SiO2) in a sedimentary host
Amazonite
K(AlSi3O8)
Granite
Intrusive Igneous Rock
Shark Tooth Fossil
Carcharocles megalodon or similar fossilized shark tooth
Gneiss (specifically a Granitic Gneiss)
Gneiss (typically composed of Quartz, Feldspar, and Mica/Amphiboles)
Petrified Wood
Silicified Wood (SiO2-dominant)
Banded Serpentine
Serpentine group (subgroup Lizardite or Antigorite) - Mg3Si2O5(OH)4
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Sandstone
Arenite (primarily SiO2)
Quartz Druse (on Chalcedony/Agate base)
Silicon Dioxide (SiO2)
Red Calcite
Calcium Carbonate (CaCO3)
Fossilized Shark Tooth
Chondrichthyes (Class)
Quartz Pebble with Mineral Inclusions
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Blue Aventurine
Quartz (Silicon Dioxide, SiO2) with inclusions
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 based)
Prehnite
Prehnite (Ca2Al2Si3O10(OH)2)
Chrysocolla
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O
Pyrite
Iron Sulfide (FeS2)
Iron Concretion
Ferruginous concretion (Fe2O3·nH2O / FeO(OH))
Calcite
Calcium Carbonate (CaCO3)
Magnetite
Magnetite (Iron(II,III) oxide, Fe3O4)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Siderite Concretion
Ironstone (Siderite) Concretion, FeCO3
Shale
Fissile mudstone (primarily clay minerals and silt-sized quartz)
Prehnite on Basalt
Prehnite - Ca2Al(AlSi3O10)(OH)2