Dalmation Stone
Peralkaline Rock (SiO2 with Arfvedsonite)
igneous
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 Cobble
Quartzite (SiO2)
metamorphic
Quartzite (River Cobble)
Quartzite (SiO2)
metamorphic
Peridotite
Ultramafic igneous rock
igneous
Granite
Intrusive Igneous Rock
igneous
Raw greenish-blue quartz-bearing mineral specimen
Likely fluorite or chalcedony/quartz; exact identification requires hardness and crystal tests
mineral
Sandstone (Red)
Arenite (composed primarily of SiO2)
sedimentary
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, or Chrysotile)
metamorphic
Serpentinite
Serpentinite (composed largely of serpentine group minerals including Antigorite, Lizardite, or Chrysotile)
metamorphic
Quartzite pebble
Metamorphic Quartzite (SiO2)
metamorphic
Dalmatian Stone and Lapis Lazuli
Dalmatian Stone (peralkaline rock) with Lapis Lazuli (metamorphic rock)
igneous
Greenstone
Metabasalt (composed mainly of chlorite, epidote, and actinolite)
metamorphic
Bauxite
Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))
sedimentary
Mica Schist
Mica Schist (predominantly composed of Muscovite or Biotite silicates)
metamorphic
Phyllite (possibly low-grade greenish slate)
Foliated metamorphic rock composed mainly of very fine-grained quartz, mica, and chlorite; approximate composition varies and has no single fixed chemical formula
metamorphic
Granite
Intrusive Igneous Rock
igneous
Likely slate fragment
Slate; fine-grained foliated metamorphic rock composed mainly of clay minerals, quartz, and mica
metamorphic
Graphic Granite (or Rapakivi-textured Granite)
Alkali feldspar granite
igneous
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Banded Gneiss
Gneiss
metamorphic
Yellow Quartzite Pebble
Quartzite (SiO2)
metamorphic
Red Sandstone
Arenite (Fe2O3-rich)
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Mica/Amphibole)
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite with Iron Oxide cement (SiO2 + Fe2O3)
sedimentary
Green Schist
Greenschist (composed of chlorite, epidote, and actinolite)
metamorphic
Dalmatian Stone
Dalmatian Jasper (Aplite rock composition)
igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Unakite
Altered Granite (Epidote, Orthoclase Feldspar, Quartz)
metamorphic
Serpentinite
Serpentinite (composed largely of serpentine group minerals including antigorite, lizardite, and chrysotile)
metamorphic
Dalmatian Jasper
Dalmatian Stone (Felsite with Arfvedsonite/Tourmaline)
igneous
Vesicular Basalt
Vesicular Basalt (rich in silicate minerals mostly Plagioclase and Pyroxene)
igneous
Pink-and-black gneiss
Foliated granitic gneiss, commonly quartz–feldspar–biotite gneiss
metamorphic
Andesite
Intermediate Volcanic Rock (Andesite)
igneous
Brecciated Jasper
Silicon dioxide (SiO2) microcrystalline quartz breccia
sedimentary
Granite (Fine-grained)
Phaneritic Felsic Igneous Rock
igneous
Serpentinite
Serpentinite (composed largely of serpentine group minerals including antigorite, lizardite, and chrysotile)
metamorphic
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)
metamorphic
Gray slate
Slate; fine-grained foliated metamorphic rock composed mainly of mica and quartz
metamorphic