Feldspar-Quartz Rock (likely Pegmatite or Granite)
Feldspar-Quartz composite rock (KAlSi3O8 - SiO2)
Category
Browse igneous specimens identified by the Rock Identifier community.
Feldspar-Quartz Rock (likely Pegmatite or Granite)
Feldspar-Quartz composite rock (KAlSi3O8 - SiO2)
Dalmatian Jasper / Dalmatian Stone
Peralkaline Rock (Silicon Dioxide with Amphibole inclusions)
Granite
Granite (Felsic Plutonic Rock)
Granite
Granite (Phaneritic Quartz-Feldspar Rock)
Granite Glacial Erratic
Intrusive Phaneritic Felsic Rock (Granite)
Scoria
Vesicular Basaltic Rock
Dalmatian Stone
Peralkaline rhyolite with arfvedsonite (formerly incorrectly called Dalmatian Jasper)
Granite Pebble (River Rock)
Granite (composed primarily of Quartz, Feldspar, and Mica)
Granite Cobble
Granite (Phaneritic Quartz-Feldspar Felsic Rock)
Granite
Granite (Felsic Plutonic Rock)
Granite
Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
Muscovite Mica
KAl2(AlSi3O10)(F,OH)2
Milky Quartz
Silicon Dioxide (SiO2)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Sodalite
Na8(Al6Si6O24)Cl2
Granite
Granite (Phaneritic Igneous Rock)
Black Granite (Basalt or Gabbro)
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
Dalmatian Stone
Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite
Dalmatian Jasper (Dyed Blue)
Peralkaline Rock with Arfvedsonite and Blue Dye
Granite
Granite (Felsic Intrusive)
Granite
Phaneritic Felsic Intrusive Igneous Rock
Dalmatian Stone
Dalmatian Jasper (Aphanitic Igneous Rock with Arfvedsonite inclusions)
Granite
Phaneritic plutonic felsic rock
Granite
Granite (Felsic Plutonic Rock)
Granite
Granite
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
Rose Quartz
Silicon dioxide (SiO2) with traces of titanium, iron, or manganese
Citrine Quartz
Silicon Dioxide (SiO2)
Biotite on Matrix
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
Amazonite
KAlSi3O8 (Potassium Aluminum Silicate)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Strawberry Quartz (Quartz with Hematite inclusions)
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
Rose Quartz
Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Sodalite
Sodalite, Na8(Al6Si6O24)Cl2
Dearest Ring (Gemstones)
Mixed Gemstones: Diamond (C), Emerald (Be3Al2Si6O18), Amethyst (SiO2), Ruby (Al2O3), Sapphire (Al2O3), Topaz (Al2SiO4(F,OH)2)
Garnet
Garnet Group (Silicate Minerals), formula varies e.g., Alm: Fe3Al2(SiO4)3
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
Labradorite
Labradorite (Ca,Na)(Al,Si)4O8
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)