Basalt
Basalt
Category
Browse igneous specimens identified by the Rock Identifier community.
Basalt
Basalt
Granite
Phaneritic Plutonic Felsic Rock (major components: SiO2 and Al2O3)
Granite
Granite
Pink Granite
Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)
Dalmatian Stone
Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite
Dalmatian Stone (Dalmation Jasper)
Aplite with Arfvedsonite inclusions
Syenite
Syenite (Phaneritic Igneous Rock)
Granite
Phaneritic Felsic Igneous Rock
Chinese Writing Stone
Porphyritic Basalt (with Andalusite/Feldspar phenocrysts)
Olivine (Peridotite)
(Mg,Fe)2SiO4 (Magnesium Iron Silicate)
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
Granite
Granite (Felsic intrusive igneous rock)
Quartz (Druzy) on Matrix
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz Crystal (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
Bull Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz (with trace inclusions)
Silicon Dioxide (SiO2)
Milky Quartz with Chlorite/Moss Infusions
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic silicate with secondary mineral inclusions)
Granite
Granite (Felsic Plutonic Rock)
Mahogany Obsidian
Obsidian (Volcanic Glass) with Hematite/Magnetite inclusions
Dalmatian Stone
Dalmatian Jasper (Aplitic Perthite)
Granite
Granite (Felsic Plutonic Rock)
Milky Quartz
Silicon dioxide (SiO2)
Quartz with Schorl (Black Tourmaline)
Silicon Dioxide (SiO2) with Sodium Iron Aluminum Borosilicate (NaFe3Al6(BO3)3Si6O18(OH)4)
Beryl (likely Pink/Morganite variety)
Beryllium aluminum silicate (Be3Al2Si6O18)
Quartz (Milky or Cloudy Quartz)
Silicon Dioxide (SiO2)
Ferruginous Quartz
Quartz (Silicon Dioxide) - SiO2 with Iron Oxide inclusions
Epidote with Unakite characteristics
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Quartz Pebble (Sea Glass-like texture)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Gold in Quartz Ore
Hydrothermal Quartz with native Gold (Au)
Dalmatian Stone
Dalmatian Jasper (not a true jasper, typically an igneous perthite)
Sodalite Syenite
Sodalite-bearing Syenite (Na8(Al6Si6O24)Cl2)
Granite Pebble
Intrusive Felsic Igneous Rock (primarily SiO2 with Al2O3, K2O, Na2O)
Diorite
Diorite (intermediate plutonic rock)
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Dalmatian Stone (often called Dalmatian Jasper)
Peralkaline Quartz-Feldspar Rock with Arfvedsonite (formerly believed to be Jasper)
Graphic Granite
Graphic Granite (Granite Pegmatite)
Dalmation Stone (frequently called Dalmatian Jasper)
Peralkaline Quartz-Feldspar Rock
Granite
Granite (Felsic Plutonic Rock / SiO2 + Al2O3 + K2O + Na2O + CaO + FeO + MgO)