Basalt (River Stone)
Basalt (Mafic Extrusive Igneous Rock)
Category
Browse sedimentary or igneous specimens identified by the Rock Identifier community.
Basalt (River Stone)
Basalt (Mafic Extrusive Igneous Rock)
Granodiorite Pebble
Granodiorite (Intermediate intrusive igneous rock)
Pink Granite
Phaneritic Felsic Intrusive Igneous Rock
Diorite (River Pebble)
Diorite (Intermediate intrusive igneous rock)
Granite (Weathered)
Course-grained Intrusive Igneous Rock
Granite fragment
Phaneritic Igneous Rock (Granitic composition)
Pumice
Vesicular Rhyolite / Glassy Igneous Rock
Basalt (Crushed Stone)
Basalt (Mafic Extrusive Igneous Rock)
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Basalt Beach Pebble
Basalt (Aphanitic Mafic Igneous Rock)
River Stone (Basalt)
Basalt (Aphanitic Mafic Igneous Rock)
Basalt
Basalt (Extrusive Mafic Igneous Rock)
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
Granite
Phaneritic Felsic Igneous Rock (Granite)
Geode (unopened)
Silica-filled Concretion (SiO2)
Jasper (Iron-rich Chert)
Silicon Dioxide (SiO2) with impurities of Hematite or Goethite
Satin Spar (Gypsum)
Hydrous Calcium Sulfate (CaSO4·2H2O)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Sandstone
Arenite (primarily SiO2)
Sodalite
Sodalite Na8(Al6Si6O24)Cl2
Smoky Quartz
Silicon Dioxide (SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(F,OH)2)
Chalcopyrite
Chalcopyrite (CuFeS2)
Sodalite
Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Smoky Quartz
Silicon Dioxide (SiO2)
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
Gold Nugget
Native Gold (Au)
Olivine (Peridot)
Olivine Group (Mg,Fe)2SiO4
Smoky Quartz
Silicon Dioxide (SiO₂)
Labradorite (Dark or Black variety)
Labradorite (member of Plagioclase Feldspar group), (Na,Ca)(Si,Al)4O8
Peach Moonstone (Orange/Peach Feldspar)
Potassium aluminum silicate (KAlSi3O8)
Smoky Quartz
SiO2 (Silicon Dioxide with aluminum impurities)
Smoky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Quartz (Silicon Dioxide, SiO2) with trace amounts of titanium, iron, or manganese
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