Calcite on Matrix
Calcium Carbonate (CaCO3)
mineral
Category
Mineral In Igneous Rock
Browse mineral in igneous rock specimens identified by the Rock Identifier community.
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Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz on Basalt
Silicon Dioxide (SiO2) on Mafic Igneous Rock
Mineral on Igneous Rock
Spessartine Garnet in Quartz/Feldspar Pegmatite
Spessartine (Mn3Al2(SiO4)3) in Quartz (SiO2) and Feldspar
Mineral in Igneous Rock
Quartz Druzy on Basalt
Silicon Dioxide (SiO2) on Mafic Volcanic Rock
Mineral on Igneous Rock
Quartz / Quartzite
Silicon Dioxide (SiO2)
mineral / metamorphic
Polished dark-speckled igneous pebble, likely diorite or gabbro
Probable diorite (plagioclase feldspar and hornblende/biotite); exact identification is uncertain from the image
igneous
Granite
Intrusive Igneous Rock
igneous
Nephrite Jade
Nephrite
Mineral/Rock
Crushed Granite and Basalt
Phaneritic Igneous Rock / Aphanitic Igneous Rock
igneous
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Granite
Granite
igneous
Basalt
Basalt
Igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Dark-colored Igneous Rock (likely Basalt or Diabase)
Basalt (extrusive igneous) or Diabase (intrusive igneous)
Igneous Rock
Dark igneous rock, likely basalt or diabase, with a second purplish specimen
Basalt/diabase; exact identification is uncertain from the photograph
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Felsic intrusive igneous rock
igneous
Granite pebble
Granite, chiefly quartz, feldspar, and mica
igneous
Tumbled pink granite
Granite (quartz, feldspar, and mica; exact variety uncertain)
igneous
Granite
Intrusive Igneous Rock
igneous
Rounded granite pebble
Granite; chiefly quartz, feldspar, and mica
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Granite
Igneous
Granite
Intrusive Igneous Rock
igneous
Granite Pebble
Intrusive Igneous Rock
igneous
Granite
Intrusive igneous rock
igneous
Granite
Intrusive igneous rock
igneous
Granite with Epidote
Granite, containing quartz, feldspar, and epidote
Igneous
Weathered granitic boulder
Granite, typically composed of quartz, feldspar, and mica
igneous
Gravel / Crushed Stone
Aggregate (mixed mineral rock fragments)
sedimentary
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive igneous rock
igneous
Basalt with Quartz Vein
Mafic volcanic rock with hydrothermal SiO2 filling
igneous
Pink granite pebble
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock (Felsic)
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous