Granite
Intrusive igneous felsic rock
igneous
Category
Igneous Rock
Browse igneous rock specimens identified by the Rock Identifier community.
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Basalt
Basalt (Igneous Volcanic Rock)
igneous
Granite
Intrusive igneous felsic rock
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Granite Cobble
Granite (Felsic Intrusive)
igneous
Gneiss
Gneissic Metamorphic Rock (Mineral composition: Quartz, Feldspar, Amphibole/Biotite)
metamorphic
Gneiss
Foliated Metamorphic Rock
metamorphic
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral
Granite
Phaneritic plutonic rock (SiO2 rich)
igneous
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Basalt
Extrusive mafic rock
igneous
Faceted Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
gemstone
Basalt (Vesicular)
Mafic Volcanic Rock (rich in Magnesium and Iron)
Igneous
Veined Pebble (likely a Quartz-Veined Pebble)
Pebble with Mineral Vein (e.g., Quartz Vein in a Chert/Mudstone Pebble)
Sedimentary Rock (possibly conglomerate or breccia with a quartz vein)
Basalt
Basalt
Igneous
Vesicular Basalt (Lava Rock)
Vesicular Basalt
igneous
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
mineral
Pebble (likely a type of sandstone or quartzite pebble)
Clastic Sediment (specifically, a rudite-sized clast). If the pebble is composed of a specific rock type, its scientific name would be that rock type (e.g., 'Quartzite pebble', 'Granite pebble', 'Chert pebble'). Given its appearance, it is likely a metamorphic quartzite pebble or a hard sandstone pebble.
Sedimentary rock
Quartz with impurities or Host Rock
SiO2 (Silicon Dioxide) with mixed silicates
mineral
Basalt
Basalt (Mafic volcanic rock)
igneous
Beach Pebble (likely Basalt or Chert)
Volcanic Basalt / Microcrystalline Quartz
igneous
Snowflake Obsidian
Obsidian with Cristobalite inclusions
igneous
Vesicular Basalt (or Scoria)
Vesicular Basalt
igneous
Basalt
Basalt
igneous
Banded Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Porphyritic Andesite
Andesite with Hornblende phenocrysts
igneous
Unakite or Epidosite
Epidosite (Mineral composition: Epidote, Feldspar, and Quartz)
metamorphic
Clear Quartz
Silicon dioxide (SiO2)
mineral
Quartz Crystal Point
Silicon Dioxide (SiO2)
mineral
Vesicular Basalt (Scoria)
Vesicular Basalt
igneous
Granite Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Unakite
Epidotized Granite
metamorphic
![Dragon Blood Jasper (Epidote with Pietersite or Red Jasper (Ca2Al2Fe3+[Si2O7][SiO4]O(OH))) — metamorphic](https://media.rockidentification.com/7ebd5bc2-2269-4b90-a9ec-309bf2d8a280-thumbnail.jpg)
Dragon Blood Jasper
Epidote with Pietersite or Red Jasper (Ca2Al2Fe3+[Si2O7][SiO4]O(OH))
metamorphic
Quartz Crystal Point
Silicon Dioxide (SiO2)
mineral
Quartz Vein / Milky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Quartz (Aventurine)
Silicon Dioxide (SiO2) with inclusions of crocidolite or dumortierite
mineral
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
mineral
Basalt (Concrete Aggregate)
Basalt (Mafic volcanic rock)
igneous
Quartz (Microcrystalline/Gravel)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz on Feldspar (Granite Pegmatite)
Silicon Dioxide (SiO2) with Potassium Aluminum Silicate (KAlSi3O8)
igneous