Granite
Granite (Phaneritic intrusive igneous rock)
Igneous
Category
Mineral, Part Of A Rock
Browse mineral, part of a rock specimens identified by the Rock Identifier community.
Wonderstone (Liesegang Sandstone)
Silicified Sandstone with Liesegang Rings (SiO2 + FeO(OH))
sedimentary
Rough Green QuartzITE / Green Aventurine
Aventurine Quartz (SiO2 + Cr-muscovite inclusions)
metamorphic
Quartz / Quartzite
Silicon Dioxide (SiO2)
metamorphic
Granite
Phaneritic Felsic Igneous Rock
igneous
Chert (Nodule)
Chert (composition: SiO2)
sedimentary
Rutilated Quartz
SiO2 with TiO2 inclusions
Mineral
Basalt with Amygdules
Amygdaloidal Basalt
igneous
Quartz Pebble (with Iron Inclusions)
Silicon Dioxide (SiO2)
mineral
Chert (varietal: Flint/Jasper mix)
Hydrous Silica (SiO2)
sedimentary
Carnelian (Chalcedony variety)
SiO2 (Silicon Dioxide)
Mineral
Serpentine
Serpentinite (rock), Serpentine group minerals (e.g., Antigorite, Lizardite, Chrysotile)
Metamorphic rock
Porphyry (Flower Stone)
Porphyritic Basalt or Andesite
igneous
Granite Pebble
Granite (Phaneritic intrusive igneous rock)
igneous
Shale or Argillite
Shale (fine-grained clastic sedimentary rock) or Argillite (low-grade metamorphic rock derived from shale)
Sedimentary or Metamorphic (low grade)
Amygdaloidal Rhyolite
Rhyolite (felsic volcanic rock) with amygdules
igneous
Chert (Smooth River Pebble)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Gneiss (specifically Banded Gneiss)
Gneiss
metamorphic
Serpentine (Serpentinite)
Serpentinite (complex silicate group including lizardite, chrysotile, and antigorite)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Unakite (Epidotized Granite)
Epidote-Feldspar-Quartz Rock
metamorphic
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Basalt
Basalt (Aphanitic mafic volcanic rock)
igneous
Fluorite and Rose Quartz
Fluorite (CaF2), Rose Quartz (SiO2)
Mineral
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Turquoise
Hydrated phosphate of copper and aluminum; CuAl6(PO4)4(OH)8·4H2O
mineral
Chert (specifically Flint or Common Chert node)
Silicon Dioxide (SiO2)
sedimentary
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Mica Schist
Mica Schist (Schistose metamorphic rock rich in Muscovite/Biotite)
metamorphic
Conglomerate
Conglomerate (Clastic Sedimentary Rock)
sedimentary
River Jasper (Chert/Chalcedony mix)
Silicon Dioxide (SiO2) with iron oxide and chlorite inclusions
sedimentary
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Basalt with Vesicular Texture
Extrusive Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
igneous
Labradorite (Larvikite variety)
Feldspar (Plagioclase series), (Na,Ca)(Si,Al)4O8
igneous
Green Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Serpentine Jade (New Jade/Olive Jade)
Serpentinite (a rock composed primarily of serpentine minerals) / Mg3Si2O5(OH)4 for Antigorite and Lizardite
Mineral
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Diamond in Kimberlite
Diamond (C in Kimberlite Matrix)
igneous
Granite
Phaneritic Acidic Igneous Rock (Granite)
igneous
Weathered Volcanic Rock (possibly Rhyolite or Andesite Pebble)
Volcanic rock (e.g., Rhyolite or Andesite, specific identification would require thin section analysis or chemical assay). Mineral composition: Primarily feldspars (orthoclase and/or plagioclase), quartz (in rhyolite), micas, amphiboles, and sometimes pyroxenes.
Igneous, specifically volcanic/extrusive (possibly Rhyolite or Andesite)
Banded Gneiss
Gneiss (quartz-feldspar-biotite metamorphic rock)
metamorphic