Granite (Pink/Red Granite)
Phaneritic Igneous Rock (primarily SiO2, KAlSi3O8, NaAlSi3O8)
Category
Browse sedimentary and igneous (mixed) specimens identified by the Rock Identifier community.
Granite (Pink/Red Granite)
Phaneritic Igneous Rock (primarily SiO2, KAlSi3O8, NaAlSi3O8)
Black Obsidian
Volcanic Glass (SiO2)
Scoria (Red Lava Rock)
Scoria (Vesicular Basalt/Andesite)
Snowflake Obsidian
Volcanic glass with Spherulite inclusions (SiO2)
Obsidian / Chert (Arrowhead Artifact)
Obsidian (volcanic glass, SiO2 with impurities)
Iron Meteorite (Campo del Cielo)
Iron Meteorite, Group IAB (FeNi Alloy: Kamacite and Taenite)
Obsidian Arrowhead
Volcanic Glass (70% or more SiO2)
Kimberlite
Kimberlite (Group I or II)
Granite Pebble
Felsic Plutonic Rock (primarily Quartz, Feldspar, and Mica)
Granite
Granite (Felsic Plutonic Rock)
Native Copper in Basalt
Cuprum (with Host Basalt)
Graphic Granite
Pegmatitic Feldspar with Quartz intergrowths
Obsidian
Volcanic Glass (SiO2)
Dalmatian Stone
Dalmatian Jasper (Aplitic Perthite)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Snowflake Obsidian
Volcanic glass with Phenocrysts (SiO2 with Cristobalite inclusions)
Chondrite Meteorite
Ordinary Chondrite (L or H type)
Granite
Phaneritic Felsic Igneous Rock (Granite)
Granite (River Pebble)
Phaneritic intrusive igneous rock (Felsic)
Flowerstone (Porphyry)
Porphyritic Andesite or Basalt
Granite
Phaneritic Igneous Rock (composed primarily of Quartz SiO2, Alkali Feldspar, and Plagioclase)
Pumice
Pumice (Vesicular volcanic glass / Rhyolite or Trachyte)
Scoria (Lava Rock)
Vesicular Basalt / Scoria
Obsidian
Volcanic Glass (SiO2)
Granite
Phaneritic Acidic Igneous Rock (Granite)
Granite
Granite (composed primarily of Quartz SiO2, Orthoclase KAlSi3O8, and Plagioclase NaAlSi3O8 to CaAl2Si2O8)
Tektite (Indochinite)
Tektite (High-silica natural glass)
Obsidian
Volcanic glass (Mainly SiO2)
Granite
Phaneritic plutonic rock (composed of quartz, alkali feldspar, and plagioclase)
Granite
Phaneritic Plutonic Igneous Rock (composed of quartz, alkali feldspar, and plagioclase)
Granite
Phaneritic plutonic rock (dominated by SiO2, Al2O3, K2O, Na2O)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Jasper Agate
Silicon dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Labradorite
Labradorite (Ca,Na)(Al,Si)4O8
Diorite (River Pebble)
Phaneritic Intermediate Plutonic Rock (Diorite)
Obsidian
Obsidian (Volcanic Glass, SiO2)
Diorite
Diorite (intermediate intrusive igneous rock)
Basalt
Basalt (Fine-grained extrusive igneous rock)
River Pebble (Gabbro or Basalt)
Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)
Granite
Phaneritic plutonic rock (Quartz, Alkali Feldspar, and Plagioclase)
Diorite (River Pebble)
Intermediate plutonic igneous rock