Jadeite Jade
Sodium Aluminum Silicate (NaAlSi2O6)
metamorphic
Category
Igneous And Metamorphic
Browse igneous and metamorphic specimens identified by the Rock Identifier community.
Quartz / Quartzite
Silicon Dioxide (SiO2)
mineral / metamorphic
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Aventurine and Amazonite
Silicon Dioxide (SiO2) with inclusions and Microcline (KAlSi3O8)
Mineral
Garden Quartz (Lodolite)
Quartz with inclusions (SiO2 + various inclusions such as Chlorite, Hematite, or Feldspar)
mineral
Blue Quartz (specifically Dumortierite Quartz)
SiO2 (Silicon Dioxide) with inclusions of AlAl6BSi3O18 (Dumortierite)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Moonstone (Tumbled)
Orthoclase Feldspar (KAlSi3O8) with inclusions of Albite
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Aventurine (Green)
Aventurine Quartz (SiO2 + Fuchsite inclusions)
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Pyrite (Fool's Gold) in Matrix
Iron Sulfide (FeS2)
mineral
Tanzanite
Blue Zoisite (Ca2Al3(SiO4)(Si2O7)O(OH))
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Serpentinite
Serpentinite (complex silicate of magnesium, (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
metamorphic
Olivine (Peridot)
Magnesium Iron Silicate ((Mg, Fe)2SiO4)
mineral
Granite or Pegmatite in host rock
Granitoid / Felsic Intrusive Rock
Igneous
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
sedimentary
Rough Ruby
Corundum (Al2O3) with Chromium traces
mineral
Rhodonite in Quartz Matrix
Rhodonite (Manganese Iron Magnesium Calcium Silicate - Mn,Fe,Mg,Ca)SiO3
mineral
Dalmation Stone (often called Dalmatian Jasper)
Antiperthite-rich Microgranite
igneous
Granite
Felsic Plutonic Rock (primarily SiO2)
igneous
Granite
Phaneritic Felsic Igneous Rock (composed of SiO2, KAlSi3O8, NaAlSi3O8)
igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Granite
Granite (composed primarily of Quartz, Feldspar, and Mica)
igneous
Granite
Phaneritic plutonic rock (Quartz + Feldspar + Mica)
igneous
Granite (River Pebble)
Phaneritic intrusive igneous rock (Felsic)
igneous
Quartzite Pebble
Metamorphosed Sandstone (SiO2)
metamorphic
Quartz (Milky/Iron-stained)
Silicon Dioxide (SiO2)
mineral
Kyanite (Blue or Blue-Grey)
Kyanite (Al2SiO5)
metamorphic mineral
Ferruginous Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
mineral
Diorite (Salt and Pepper Rock)
Diorite
igneous
Dalmation Stone
Dalmation Jasper (Igneous microcrystalline quartz with arfvedsonite)
igneous
Granite
Granite
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Gneiss (specifically a Granitic Gneiss specimen)
Gneiss (high-grade metamorphic rock primarily composed of Quartz, Feldspar, and Biotite/Amphibole)
metamorphic
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Diorite (Polished River Stone)
Intrusive Igneous Diorite
igneous
River Pebble (Basalt or Gabbro)
Mafic Igneous Rock
igneous