Orange Calcite
Calcium Carbonate (CaCO3)
Category
Browse igneous specimens identified by the Rock Identifier community.
Orange Calcite
Calcium Carbonate (CaCO3)
Pyrite
Iron Sulfide (FeS2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Smoky Quartz
Silicon Dioxide (SiO2)
Chalcopyrite
Chalcopyrite (CuFeS2)
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
Pyrite in Quartzite/Graphite Matrix
Iron Sulfide (FeS2)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(F,OH)2)
Chalcedony (Tumbled)
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Quartz (Silicon Dioxide, SiO2) with trace amounts of titanium, iron, or manganese
Green Calcite
Calcium Carbonate (CaCO3)
Clear Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
SiO2 (Silicon Dioxide with aluminum impurities)
Milky Quartz (Ferruginous variety)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Peach Moonstone (Orange/Peach Feldspar)
Potassium aluminum silicate (KAlSi3O8)
Smoky Quartz
Silicon Dioxide (SiO₂)
Blue Chalcedony
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Olivine (Peridot)
Olivine Group (Mg,Fe)2SiO4
Quartz
Silicon Dioxide (SiO2)
Labradorite (Dark or Black variety)
Labradorite (member of Plagioclase Feldspar group), (Na,Ca)(Si,Al)4O8
Gold Nugget
Native Gold (Au)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Raw Corundum (Sapphire/Ruby variant)
Aluminum oxide (Al2O3)
Unakite
Epidotized Granite
Tourmaline (Multi-colored)
Complex Borosilicate (Na,Ca)(Li,Mg,Al,Fe)3Al6(BO3)3Si6O18(OH)4
Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Pyrulite (Pyrite / Chalcopyrite)
Iron Sulfide (FeS2) or Copper Iron Sulfide (CuFeS2)
Pyrite
Iron Sulfide (FeS2)
Carnelian
Cryptocrystalline Quartz (SiO2)
Grey Chalcedony (Agate)
Silicon Dioxide (SiO2)
Lapis Lazuli
Tectosilicate (Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Moonstone (Feldspar)
Orthoclase (KAlSi3O8) or Albite (NaAlSi3O8)