Granite
Phaneritic Felsic Igneous Rock
Category
Browse this is not a rock or mineral specimens identified by the Rock Identifier community.
Granite
Phaneritic Felsic Igneous Rock
Sandstone Beach Pebble
Clastic Sandstone (SiO2 - Quartz-dominant)
Chalcedony in Matrix
Silicon Dioxide (SiO2)
Quartz (Milky/Bull Quartz)
Silicon Dioxide (SiO2)
Pegmatite (Granite Pegmatite)
Intrusive Igneous Rock (Granite Pegmatite)
Granite
Granite (a plutonic igneous rock)
Lava Rock (Basalt)
Basalt (extrusive igneous rock)
Iron-stained Quartzite / Chert
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
Granite
Granite (composed primarily of Quartz, Feldspar, and Mica)
Magnetite Orthorthotropic Rock
Magnetite (Fe3O4)
Sandstone
Arenite (a specific type of sandstone with less than 15% matrix)
Ferruginous Sandstone
Clastic sedimentary rock (SiO2 with Fe2O3/FeO(OH) cement)
Granite
Phaneritic Felsic Intrusive Igneous Rock
Granite
Phaneritic plutonic rock (Quartz, Feldspar, Mica)
Diorite
Phaneritic Intrusive Igneous Rock (Intermediate Composition)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone (Greywacke/Siltstone variant)
Clastic Sedimentary Rock (Lithic Wacke)
Quartzite (River Pebble)
Metamorphosed Quartz Sandstone (SiO2)
Sandstone Beach Pebble
Clastic sedimentary rock (SiO2 with iron oxide cement)
Marble
Recrystallized Carbonate Rock (CaCO3)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Flower Agate
Chalcedony (cryptocrystalline Quartz) with Spherulite inclusions; SiO2
Granite (Weathered)
Granite (Felsic Plutonic Rock)
Obsidian
Obsidian (Volcanic Glass)
Basalt Pebble with Epidote/Olivine
Vitreous Basalt (SiO2 with Ca/Mg/Fe silicates)
Quartz
Quartz (SiO2 - Silicon Dioxide)
Banded Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
Granodiorite
Granodiorite (Phaneritic intrusive igneous rock containing Plagioclase, Quartz, and Biotite/Amphibole)
Quartzite with Iron Inclusions
Metamorphic Quartzite (SiO2 with Fe2O3 trace impurities)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Chalcedony in Host Rock
Chalcedony (SiO2)
Snowflake Obsidian
Volcanic glass containing Cristobalite (SiO2)
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)
Basalt with inclusion
Basalt (Aphanitic-Porphyritic texture)
Gold Ore
Native Gold (Au) in Matrix
Zinc Ore (Sphalerite in Matrix)
Sphalerite (Zn,Fe)S within a carbonate or silicate host rock
Granite
Phaneritic Igneous Rock (Granite)