Andesite
Andesite (Intermediate Volcanic Rock)
igneous
Category
Igneous Rock
Browse igneous rock specimens identified by the Rock Identifier community.
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Andesite
Andesite (Intermediate Volcanic Rock)
igneous
Granodiorite
Phaneritic Plutonic Rock (Intermediate)
igneous
Granite
Granite
Igneous
Diorite
Diorite (Intermediate plutonic rock)
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Quartz Veined Diorite or Basalt
Crystalline Silicon Dioxide (Quartz) in Mafic Igneous Host (Basalt/Diorite)
igneous
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Sunstone (Orthoclase Feldspar variant)
Orthoclase (KAlSi3O8) with inclusions
mineral
Kambaba Jasper
Rhyolite (Volcanic rock) or Stromatolite (debated)
Igneous/Sedimentary (debated)
Carnelian Agate
Chalcedony (SiO2 with iron oxide impurities)
mineral
Moonstone (Tumbled)
Potassium Aluminum Silicate (KAlSi3O8) with inclusions of Albite
mineral
Porphyritic Basalt (Chinese Writing Stone)
Porphyritic Basalt or Porphyritic Andesite
igneous
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss
metamorphic
Granite
Granite (Felsic Plutonic Rock)
Igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Schorl (Black Tourmaline) in Quartz or Feldspar Matrix
NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl) in Granitic Pegmatite
igneous
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz with Iron Staining
Silicon Dioxide (SiO2) with Limonite/Hematite inclusions
mineral
Scoria
Scoria (Extrusive Volcanic Rock)
igneous
Lapis Lazuli
Lazurite-rich metamorphic rock (approx. Na6Ca2(Al6Si6O24)(S,SO4,Cl)1,2)
metamorphic
Smoky Quartz Cluster
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Granodiorite
Granodiorite (Intermediate plutonic rock)
igneous
Basalt (Vesicular)
Aphanitic Mafic Volcanic Rock
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Red Granite
Felsic Plutonic Rock (Granite)
igneous
Basalt River Pebble
Basalt (Mafic volcanic rock)
igneous
Milky Quartz Pebble (Iron-Stained)
Silicon Dioxide (SiO2)
mineral
Greenstone (Epidote/Chlorite Rich Rock)
Metabasalt (often contains Epidote Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH))
metamorphic
Scoria (Lava Rock)
Vesicular Basalt / Scoria
igneous
Collection of Minerals and Ores
Various (e.g., Uraninite (U3O8), Carbon (C), Native Gold (Au), Hematite (Fe2O3), Galena (PbS), etc.)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss (High-grade Regional Metamorphism)
metamorphic
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
mineral
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic