Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
Category
Browse industrial byproduct (anthropogenic rock) specimens identified by the Rock Identifier community.
Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
Garnet
Silicate mineral group (often Pyrope or Almandine in this color range)
Quartz Pebble
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Almandine Garnet
Fe3Al2(SiO4)3
Orange Calcite
Calcium Carbonate (CaCO3)
Quartz with Mica (Granitic / Pegmatitic Quartz)
Silicon Dioxide (SiO2) with Mica group minerals
Milky Quartz
Silicon Dioxide (SiO2)
Black Garnet (Melanite)
Andradite, Ca3Fe2(SiO4)3
Black Tourmaline (Schorl)
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz Pebble with Iron Inclusions
Silicon Dioxide (SiO2) with iron oxide impurities
Gold and Diamond Jewelry
Native Gold (Au) and Diamond (C)
White Topaz
Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2]
Chert (Common Opal/Jasper variant)
Silicon Dioxide (SiO2)
Diamond (or Simulant)
Carbon (C)
Diamond (or Cubic Zirconia simulant)
C (Carbon) or ZrO2 (Zirconium Dioxide)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Black Tourmaline (Schorl)
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Mica Schist
Mica-rich Schist containing Muscovite and Quartz
Banded Agate (Tumbled)
Silicon Dioxide (SiO2)
Chalcedony (Common Agate)
Silicon Dioxide (SiO₂)
White Quartz Pebble
Silicon Dioxide (SiO2)
Diamond
Carbon (C)
Diamond
Natural Diamond (Carbon, C)
Diamond
C
Diamond
C
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Yellow Sapphire (Corundum)
Corundum (Aluminum Oxide, Al2O3)
Rough Diamond
Carbon (C)
Quartz (Iron-stained or Orange Quartz)
Silicon Dioxide (SiO2)
Quartzite cobblestone
Quartzite (primarily SiO2)
Beryl (likely Pink/Morganite variety)
Beryllium aluminum silicate (Be3Al2Si6O18)
Hematite
Hematite (Iron(III) oxide, Fe2O3)
Chalcedony Geode Part (Agate/Quartz)
Silicon Dioxide (SiO2)
Quartz Geode (Cracked)
Silicon Dioxide (SiO2)
Pegmatite
Granitic Pegmatite
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
Quartzite Pebble
Quartzite (mostly SiO2)
Peridot (Olivine)
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)