White Quartz Sphere
Silicon Dioxide (SiO2)
Category
Browse mineral based alloy (anthropogenic) specimens identified by the Rock Identifier community.
White Quartz Sphere
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2 based)
Quartzite Pebble
Quartzite (SiO2 based)
Quartzite Pebble
Quartzite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Anthracite Coal
Anthracite (Carbon based)
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Arsenopyrite in Sulphide Ore
Arsenopyrite (FeAsS)
Obsidian Arrowhead
Obsidian (Volcanic Glass)
Rose Quartz
Quartz (Silicon Dioxide - SiO2) with trace amounts of titanium, iron, or manganese
Sandstone
Arenite (SiO2 based clastic rock)
Amber in Matrix
Succinite (Carbon-based organic polymer)
Geode half
Geode (often quartz/chalcedony based)
Sandstone with Secondary Mineral Encrustation
Arenite with Silica/Calcite deposits (SiO2 or CaCO3)
Cubic Zirconia (CZ) in Gold-Plated Setting
Cubic Zirconium Dioxide (ZrO2)
Sandstone
Arenite (SiO2 based sedimentary rock)
Sandstone
Arenite (Silicon Dioxide, SiO2 based)
Iron Meteorite
Meteoritic Iron (Fe-Ni alloy)
Asphalt Concrete (Bituminous Concrete)
Bituminous aggregate
Sandstone (with potential trace fossils)
Clastic sedimentary rock (primarily SiO2)
Concretion
Calcareous or ferruginous concretion
Sandstone (Quartz Sandstone / Iron-stained Sandstone)
Sandstone (SiO2 with iron oxide impurities)
Silver (S925)
Native Silver (Ag)
Bumblebee Jasper
Anhydrous Calcium Carbonate with Sulfur and Arsenic (Orpiment/Realgar)
Blue Sapphire (in a faceted jewelry setting)
Corundum (Al2O3) with trace Iron and Titanium
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Native copper nugget
Copper (Cu), native element
Native copper nugget
Native copper (Cu)
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
Aquamarine (Pale variety)
Beryl (Be3Al2Si6O18)
Bismuth
Bismuth (element Bi) with oxidized thin-film interference layer
Silicon
Crystalline Silicon (Si)
Michigan Float Copper
Native Copper (Cu)
Black Jasper
Black Jasper (Silicate mineral - SiO2)
Tumbled orbicular jasper
Orbicular jasper; microcrystalline quartz (SiO₂) with iron oxides and feldspathic/chalcedony inclusions
Sandstone
Arenite (SiO2 based clastic rock)
Sandstone with Lichen
Arenite (SiO2 based) with biological weathering
Copper-Bearing Sulfide Ore (likely Chalcopyrite or Bornite)
Chalcopyrite (CuFeS2) or Bornite (Cu5FeS4) in host rock
Moss Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxides
Granite
Granite (Phaneritic Igneous Rock)
Gold
Gold (Au)