Biotite Mica
K(Mg,Fe)3AlSi3O10(OH)2
Category
Browse mineral like industrial smelting waste specimens identified by the Rock Identifier community.
Biotite Mica
K(Mg,Fe)3AlSi3O10(OH)2
Sapphire (likely blue synthetic sapphire or blue glass in a ring)
Corundum (Al₂O₃), specifically the blue variety due to trace amounts of iron and titanium impurities. If synthetic, it would still be Al₂O₃.
Quartz Vein in Host Rock (clastic sediment)
Silicon Dioxide (SiO2) in matrix
Anthracite Coal
Anthracite
Diamond (Faceted Gemstone)
Native Carbon (C)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Diamond (specifically Blue Diamond color appearance)
Carbon (C) with trace Boron
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Diamond
Cubic Carbon (C)
Diamond
Carbon (C) - Native Element
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Diamond
Diamond (pure Carbon, C)
Rough Diamond
Diamond (pure Carbon, C)
Yellow Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
Diamond (Cluster Setting)
Carbon (C) - Diamond
Cubic Zirconia (Simulated Diamond)
Zirconium dioxide (ZrO2)
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
Grey Chalcedony
Silicon Dioxide (SiO2)
Almandine Garnet
Almandine (Fe3Al2Si3O12)
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Diamond (in a jewelry setting)
Carbon (C)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Yellow Jasper
Chalcedony (SiO2) with iron oxide inclusions
Quartz (Agate/Chalcedony variety)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Diamond (in a jewelry setting)
Carbon (C)
Quartz pebble
Silicon Dioxide (SiO2)
Shungite
Shungite (Non-crystalline carbon, C)
Quartz Pebble (Water-Worn)
Silicon Dioxide (SiO2)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Aqua Aura Quartz
Titanium/Gold-coated Silicon Dioxide (SiO2)
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz Druze on Matrix
Silicon Dioxide (SiO2)
Cubic Zirconia (CZ) in Gold-Plated Setting
Cubic Zirconium Dioxide (ZrO2)
Gold Nugget
Native Gold (Au)
Yellow Calcite (Banded Calcite)
Calcium Carbonate (CaCO3)
Green Calcite
Calcium Carbonate (CaCO3)