Sandstone
Arenite (SiO2 based)
sedimentary
Category
Metamorphic (Likely Gneiss Or Schist Based On Texture)
Browse metamorphic (likely gneiss or schist based on texture) specimens identified by the Rock Identifier community.
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Apatite
Apatite Group (e.g., Fluorapatite Ca5(PO4)3F, Chlorapatite Ca5(PO4)3Cl, Hydroxylapatite Ca5(PO4)3(OH))
mineral
Greenschist
Greenschist facies rock
Metamorphic
Sandstone
Arenite (SiO2 based)
sedimentary
Epidote (Unakite variety)
Epidosite (Metasomatic rock containing Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Dendritic sandstone
Sandstone with Manganese Oxide dendrites
sedimentary
Metallic sulfide ore, likely pyrite-bearing rock
Pyrite (FeS₂), possibly with chalcopyrite and quartz/host rock
mineral
Gneiss (specifically Granitic Gneiss)
Gneiss (composed primarily of Quartz, Feldspar, and Biotite/Amphibole)
metamorphic
Pebble or Cobble (likely composed of sandstone or conglomerate)
Clastic Sedimentary Rock (specific name like sandstone, conglomerate, or breccia would require microscopic analysis of clast size and angularity)
Sedimentary Rock (possibly a conglomerate or coarse-grained sandstone)
Epidote (likely Unakite component or Epidosite)
Epidote (Ca2(Al2Fe)(SiO4)(Si2O7)O(OH))
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
White Sapphire
Corundum (Al2O3)
mineral
Dragon Stone
Ohko Stone (Argillaceous sedimentary rock)
sedimentary
Chert (Jasper)
Microcrystalline quartz (SiO2)
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Granite Gneiss
Granitic Gneiss
Metamorphic
Bronzite
Enstatite (magnesium iron silicate), (Mg,Fe2+)SiO3
mineral
Sandstone
Arenite (SiO2 based)
sedimentary
Diorite (Gneissic)
Diorite
igneous
Dark mafic rock, likely basalt
Basalt (fine-grained assemblage chiefly plagioclase and pyroxene, commonly with olivine and iron oxides)
igneous
Sandstone (Quartzose)
Arenite (SiO2 based)
sedimentary
Banded Gneiss (River Cobble)
Gneiss (High-grade regional metamorphic rock)
metamorphic
Sandstone
Arenite (SiO2 based)
sedimentary
Uncertain rounded gray stone
Possibly granite, gneiss, or a glacially transported granitoid
igneous
Mica Schist
Mica Schist (predominantly Muscovite/Biotite)
metamorphic
Basalt with Epidote (Porphyritic Basalt)
Mafic Porphyritic Basalt with (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)) inclusions
igneous
Pink Granite (Gneissic transition)
Pink Biotite Granite
igneous
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Garnet Schist
Almandine Garnet in Schist (X3Al2(SiO4)3)
metamorphic
Granite Cobble
Phaneritic Felsic Igneous Rock
igneous
Weathered quartz-rich rock, possibly quartzite or quartz vein material
Quartz (SiO₂), likely with feldspar, mica, and iron-oxide staining
metamorphic
Diorite Gneiss
Foliated Diorite Gneiss
metamorphic
Greenstone / Metabasalt
Chlorite schist or Epidiorite
metamorphic
Greenstone / River Jadeite pebble
Metavolcanic rock / Chlorite or Actinolite-rich schist
metamorphic
Emerald in Matrix
Beryl (Be3Al2Si6O18 with Chromium/Vanadium traces)
gemstone
Painted Garden Rock (likely Granite or Limestone base)
Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3) based substrate with Acrylic/Enamel pigments
igneous or sedimentary (anthropogenic modification)
Rough Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
gemstone
Sandstone with Tafoni Weathering
Arenite (SiO2 based)
sedimentary
Rough Emerald in Matrix
Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium
mineral
Synthetic Costume Glove (Paws)
Polyethylene terephthalate (Polyester) & Polyurethane blend
Non-geological / Man-made textile
Raw Emerald (Emerald Beryl)
Beryl (Be3Al2Si6O18) with chromium/vanadium impurities
mineral