Cubic Zirconia (Set in Jewelry)
Zirconium Dioxide (ZrO2)
Category
Browse industrial byproduct specimens identified by the Rock Identifier community.
Cubic Zirconia (Set in Jewelry)
Zirconium Dioxide (ZrO2)
Quartz
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Limestone Pebble
Sedimentary Calcium Carbonate (CaCO3)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Yellow Quartzite Pitting Pebble
Metamorphic Quartzite (SiO2)
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
Faceted Diamond / Moissanite / Cubic Zirconia
Carbon (C) if Diamond, Silicon Carbide (SiC) if Moissanite
Vesicular Basalt (Lava Rock)
Vesicular Basalt
Hematite Nodule
Hematite (Alpha Fe2O3)
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite Pebble
Quartzite (SiO2)
Serpentine
Serpentine subgroup (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Quartz on Feldspar
Silicon Dioxide (SiO2) with Potassium Feldspar (KAlSi3O8)
Limestone (with possible Manganese oxide inclusions)
Sedimentary Calcium Carbonate (CaCO3)
Quartz Pebble
Silicon Dioxide (SiO2)
Diamond
Native Carbon (C)
Diamond (Martapura/Borneo Diamond)
Carbon (C) - Diamond
Quartz with Muscovite Mica
Silicon Dioxide (SiO2) with Potassium aluminum silicate hydroxide fluoride [KAl2(AlSi3O10)(F,OH)2]
Quartz Geode
Silicon Dioxide (SiO2)
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartzite River Rock
Quartzite (SiO2)
Diamond (or Diamond Simulant/Cubic Zirconia)
Carbon (C) - if diamond, or Zirconium dioxide (ZrO2) - if Cubic Zirconia
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Blue Sapphire
Corundum (Al2O3) with iron and titanium impurities
Yellow Quartz (Citrine or Quartzite Pebble)
Silicon Dioxide (SiO2)
Ruby and Diamond in Gold Setting
Corundum (Al2O3) and Diamond (C)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 based with quartz grains)
Quartz Pebble
Silicon Dioxide (SiO2)
Limestone with Calcite Crystals
Sedimentary Rock containing Calcium Carbonate (CaCO3)
Yellow Quartz (Citrine Quartz or Yellow Chalcedony)
Silicon Dioxide (SiO2)
Silver (Native Element)
Ag (Argentum) - 90% Silver, 10% Copper alloy in specimen
Tourmaline (Multi-colored)
Complex Borosilicate (Na,Ca)(Li,Mg,Al,Fe)3Al6(BO3)3Si6O18(OH)4
Peridot in Basalt
Olivine ((Mg, Fe)2SiO4) in Basalt
Basalt with Iron Oxide staining
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
Sandstone (with differential weathering)
Arenite / Quartz Sandstone (SiO2)
Marble
Recrystallized Limestone (CaCO3)
Garnet in Host Rock
Garnet Group (A3B2(SiO4)3)