Lapis Lazuli
Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
metamorphic
Category
Metamorphic Rock (Composed Of Multiple Minerals)
Browse metamorphic rock (composed of multiple minerals) specimens identified by the Rock Identifier community.
Learn about Metamorphic Rock (Composed Of Multiple Minerals) in the encyclopedia
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Quartzite pebble
Quartzite (composed primarily of Quartz, SiO2)
metamorphic
Quartzite Cobble
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Quartzite Cobble
Quartzite (primarily SiO2)
metamorphic
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)
metamorphic
Sandstone (Quartzose Pebble)
Clastic Sedimentary Rock (Litharenite/Quartz arenite)
sedimentary
Granite Boulder
Intrusive Igneous Rock
igneous
Granite
Intrusive igneous rock
igneous
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Banded Gneiss
Gneiss (variable mineral composition)
metamorphic
Granite
Granite (Felsic Plutonic Rock)
igneous
Conglomerate
Conglomerate (Sedimentary Rock)
sedimentary
Garnet Schist
Almandine Garnet Schist (Fe3Al2(SiO4)3 in Schistose matrix)
metamorphic
Pink Granite
Phaneritic intrusive igneous rock (Felsic)
igneous
Quartzite
Quartzite
metamorphic
Fine-grained gray-green rock, likely basaltic or volcanic stone
Probable basalt or microcrystalline mafic igneous rock; exact identification requires a fresh surface and testing
igneous
Quartzite Pebble
Metamorphic Rock (composed mainly of SiO2)
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary
Starfish Fossil
Asteroidea fossil
fossil
Unakite
Epidotized Granite
metamorphic
Granite (Pebble)
Intrusive Felsic Igneous Rock
igneous
Bivalve Fossil (Fossilized Shell)
Class Bivalvia (fossilized in Calcium Carbonate/Aragonite)
fossil
Botryoidal Chalcedony (Desert Rose Agate)
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Shale / Mudstone
Laminated Mudrock (Siliciclastic Sedimentary Rock)
sedimentary
Epidosite
Epidosite (composed primarily of Epidote and Quartz)
metamorphic
Banded Gneiss Pebble
Gneiss (Metamorphic Rock)
metamorphic
Dalmatian Jasper
Peralkaline Quartz-feldspathic Rock (Arfvedsonite-bearing)
igneous
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Sandstone (Ferruginous)
Arenite (SiO2 with Fe2O3 inclusions)
sedimentary
Granite
Phaneritic intrusive igneous rock (approx. 70 percent SiO2)
igneous
Red Quartzite (Strawberry Quartz)
Quartzite (SiO2 with iron oxide inclusions)
metamorphic
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)
metamorphic
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg, Fe)3Si2O5(OH)4)
metamorphic
Red-and-green jasper
Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides and possibly chlorite/epidote
mineral
Granite Pebble
Granite
igneous
Unakite
Altered Granite (Epidotized Granite)
metamorphic
Likely gneiss
Gneiss, composed chiefly of quartz, feldspar, and mica/amphibole
metamorphic
Quartzite pebble
Metamorphic Quartzite (SiO2)
metamorphic