Granite
Granite (phaneritic intrusive felsic igneous rock)
igneous
Category
Igneous Rock
Browse igneous rock specimens identified by the Rock Identifier community.
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Granite
Phaneritic intrusive igneous rock (primarily SiO2)
igneous
Basalt
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
igneous
Granite
Granite (a common name for a felsic intrusive igneous rock)
Igneous Rock
Basalt
Basalt (Fine-grained extrusive igneous rock)
igneous
Unakite
Epidotized Granite
Igneous rock
Banded Chalcedony (Agate) in Basalt Matrix
Cryptocrystalline Quartz (SiO2) in Mafic Igneous Rock
sedimentary/igneous
Scoria (Lava Rock)
Scoria (highly vesicular extrusive igneous rock)
igneous
Basalt
Basalt (Phaneritic/Aphanitic Mafic Igneous Rock)
igneous
Scoria (Lava Rock)
Scoria (Extrusive Igneous Rock / Mafic Silicates)
igneous
River Cobble (likely Basalt or Greenstone)
Mafic Igneous Rock (with possible chloritic alteration)
igneous
Red Scoria (Lava Rock)
Scoria (Extrusive Igneous Rock / Mafic composition)
igneous
Porphyritic Andesite or Dacite (tumbled pebble)
Porphyritic Igneous Rock (likely Andesite or Dacite)
Igneous
Pink Granite
Granite (Phaneritic felsic intrusive igneous rock)
igneous
K2 Azurite Granite / K2 Stone
Granite (igneous rock) with Azurite inclusions (mineral)
igneous
Basalt-Amugydule (Amygdaloidal Basalt)
Aphanitic Mafic Igneous Rock with Vesicle Infillings
igneous
Granite
Phaneritic Plutonic Igneous Rock (Rich in SiO2)
igneous
Pink Granite
Granite (Phaneritic Igneous Rock, primarily SiO2)
igneous
Granite
Granite (a plutonic igneous rock composed primarily of quartz and feldspar)
Igneous Rock
Black River Stone (Chert or Basalt Pebble)
Microcrystalline Quartz (SiO2) or Mafic Igneous Rock
sedimentary
Granite
Granite
Igneous
Black Obsidian
Obsidian, volcanic glass (Amorphous SiO₂)
Igneous Rock
Pebble (likely Sandstone or Granitic Pebble)
Clastic Sediment (or specific rock type, e.g., Arenite, Granitoid Pebble)
Rock (likely Sedimentary)
Granite or Granitic Gneiss Pebble
Granite (felsic intrusive igneous rock) or Gneiss
Igneous or Metamorphic
Basalt
Basalt
igneous
Granite
Granite (a plutonic rock)
Igneous
Garnet
Garnet Group (complex nesosilicates with general formula X3Y2(SiO4)3, where X can be Ca, Mg, Fe2+, Mn2+ and Y can be Al, Fe3+, Cr3+, V3+)
Mineral
Basalt
Basalt (Aphanitic-fine grained mafic igneous rock)
igneous
Ocean Jasper
Orbicular Jasper / Silicate
Mineral
River Rocks (Basalt and Sedimentary Stones)
Mafic Igneous Rock (Basalt) and Clastic Sedimentary Rock
igneous and sedimentary
Basalt (River Pebble)
Extrusive Magic Igneous Rock (Mainly Plagioclase and Pyroxene)
igneous
Basalt
Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
igneous
Basalt with Quartz Veining
Aphanitic Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
igneous
Granite
Granite (composed primarily of Quartz, Feldspar, and Mica/Amphibole)
igneous
Basalt
Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
igneous
Basalt
Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
igneous
Basalt River Cobble
Extrusive Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
igneous
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Granite Water-Worn Pebble
Phaneritic intrusive igneous rock (Quartz, Feldspar, Mica)
igneous
Pink Granite
Phaneritic Acidic Igneous Rock (Rich in K-feldspar)
igneous