Pink Granite
Phaneritic Felsic Igneous Rock
igneous
Category
Mineral Side Rock
Browse mineral side rock specimens identified by the Rock Identifier community.
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Greenstone
Metabasalt / Greenschist facies rock
metamorphic
Amygdaloidal Rhyolite
Amygdaloidal felsic extrusive rock
igneous
Diorite (River Rock)
Intermediate plutonic igneous rock
igneous
Granite
Granite (Phaneritic igneous rock)
igneous
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Schist (Garnet-Mica Schist)
Garnet-Mica Schist
metamorphic
Quartzite with Iron Inclusions
Metamorphic Quartzite (SiO2 with Fe2O3 trace impurities)
metamorphic
Citrine (Heat-Treated Amethyst)
Silicon Dioxide (SiO2)
mineral
Carnelian Agate
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Milky Quartz (among River Rock)
Quartz (Silicon Dioxide, SiO2)
Mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
mineral
Moss Agate
Silicon Dioxide (SiO2) with inclusions of Manganese or Iron oxide
mineral
Basalt with Chert/Obsidian blade
Aphanitic Mafic Igneous Rock (Basalt) with Microcrystalline Silica (Chert)
igneous
Unakite
Epidotized Granite
metamorphic
Chert (Brecciated or Veined)
Silicon Dioxide (SiO2)
sedimentary
Vesicular Basalt
Vesicular Basalt (Aphanitic Mafic Rock)
igneous
Chert (Septarian or Banded Nodular Variety)
Microcrystalline Quartz (SiO2)
sedimentary
Granodiorite
Granodiorite (containing Plagioclase, Quartz, and K-feldspar)
igneous
Epidote (Greenstone)
Calcium aluminum iron silicate hydroxide Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)
metamorphic
Man-made Slag (Industrial Byproduct)
Anthropogenic Glassy Residue
not a natural rock
Sandstone (with Iron Oxide)
Arenite with Limonite/Hematite staining
sedimentary
Petrified Wood
Silicified Wood (SiO2)
metamorphic
Granite River Pebble
Granite (composed of Quartz, Feldspar, and Mica)
igneous
Quartz (Druzy/Macro-crystalline)
Silicon Dioxide (SiO2)
mineral
Fluorite (likely Green Fluorite variant)
Calcium Fluoride (CaF2)
mineral
Granite Pebble
Granite (Felsic Plutonic Rock)
igneous
Granodiorite Pebble
Granodiorite (containing Quartz, Plagioclase Feldspar, and Biotite/Amphibole)
igneous
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminum phosphate)
mineral
Dalmatian Stone
Dalmatian Jasper / Feldspathic Igneous Rock
igneous
Jasper
Silicon dioxide (SiO2)
sedimentary
Greenstone with Quartz Veining
Epidiorite or Metabasalt with SiO2 (Quartz) veins
metamorphic
Geode (unopened)
Calcedony-lined Geode (SiO2)
sedimentary
Wishing Stone (Quartz-Veined Basalt)
Amygdaloidal Basalt with Quartz (SiO2) vein
igneous
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (SiO2 primary composition)
sedimentary
Sandstone (Ferruginous)
Arenite (Fe-bearing Clastic Sedimentary Rock)
sedimentary
Conglomerate
Clastic sedimentary rock (Puddingstone)
sedimentary
Granite
Granite (High-silica plutonic rock)
igneous