Fossilized Brachiopod
Phylum Brachiopoda (likely Order Spiriferida or Orthida)
fossil
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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Slate
Slate (Regional metamorphic rock composed primarily of quartz, illite, and chlorite)
metamorphic
Greenstone
Greenschist / Greenstone (containing Chlorite, Epidote, Actinolite)
metamorphic
Coquina / Fossiliferous Limestone
Fossiliferous Limestone (CaCO3)
Sedimentary
White Marble (Tumbled)
Recrystallized Calcite (CaCO3)
metamorphic
Biotite Schist
Biotite Schist
Metamorphic
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Greenstone
Greenschist (composed of chlorite, actinolite, and epidote)
metamorphic
Sandstone (Red Arkose)
Sandstone (Arkose variant, primarily SiO2 with KAlSi3O8)
sedimentary
Quartz (Milky or Smoky Quartz)
Silicon Dioxide (SiO2)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Biotite Schist with Garnet
Garnet-Biotite Schist
metamorphic
Mica Schist
Mica Schist (Schistose metamorphic rock rich in Muscovite/Biotite)
metamorphic
Gneiss
Gneiss
metamorphic
Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Gneiss
Metamorphic rock of high-grade regional metamorphism
metamorphic
Sandstone (with man-made markings)
Arenite (composed primarily of Quartz, SiO2)
sedimentary
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
mineral
Sandstone (Wonderstone)
Silicified Sandstone / Orthoquartzite with Liesegang rings
sedimentary
Sandstone (Weathered Coastal Boulder)
Arenite (composed primarily of SiO2)
sedimentary
Sandstone (Micaceous)
Arenite (composed primarily of SiO2)
sedimentary
Greenstone / Greenschist
Greenschist (metamorphosed mafic rock)
metamorphic
Coarse Sand or Fine Gravel
Detrital Sedimentary Fragments (mostly SiO2)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone (Quartzose Pebble)
Arenite (composed primarily of SiO2)
sedimentary
Quartz Vein in Host Rock (Gneiss/Schist)
Silicon Dioxide (SiO2) within a metamorphic matrix
metamorphic
Granite
Felsic Plutonic Rock (Granite)
igneous
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss
Metamorphic Gneiss
metamorphic
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Zircon
Zircon (Zirconium Silicate - ZrSiO4)
mineral
Sandstone
Arenite
sedimentary
Sandstone
Clastic Sedimentary Rock (composed of SiO2 grains)
sedimentary
Dalmatian Stone
Dalmatian Jasper / Feldspathic Igneous Rock
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Iron-stained Quartzite
Metamorphosed Quartz (SiO2) with Hematite/Limonite impurities
metamorphic
Basalt
Extrusive mafic igneous rock
igneous
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic