Gneiss
Gneiss
metamorphic
Category
Igneous Or Metamorphic (Base Stone); Anthropogenic (Decoration)
Browse igneous or metamorphic (base stone); anthropogenic (decoration) specimens identified by the Rock Identifier community.
Learn about Igneous Or Metamorphic (Base Stone); Anthropogenic (Decoration) in the encyclopedia
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Synthetic Wolf Plush (Non-mineral)
Canis lupus similis (Prop material: Polyester & Synthetic fibers)
Synthetic material/Textile
Mixed river stones and gravel
Polymictic alluvial clasts; individual pieces may include quartzite, granite, basalt, sandstone, limestone, and slate
igneous, sedimentary, metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Citrine
Crystalline Quartz (SiO2) with iron impurities
mineral
Gneiss
Gneiss
metamorphic
Gravel Pebble (Likely Quartzite or Basalt)
Quartzite (or Macrocrystalline Quartz)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Titanium Aura Quartz (Bismuth-coated Druzy)
Silicon Dioxide (SiO2) with Titanium/Metal vapor coating
mineral
Slag (Industrial Byproduct)
Ferrous/Non-ferrous Silicate
igneous (artificial/anthropogenic)
Gneiss
Granitic Gneiss
metamorphic
Greenschist
Greenschist (Actinolite-Chlorite Schist)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Obsidian Arrowhead
Obsidian (Volcanic Glass)
igneous
Gneiss
Metamorphic Gneiss
metamorphic
Labradorite
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
mineral
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Basalt (Weathered River Pebble)
Extrusive Igneous Rock
igneous
Greenschist
Greenschist (composed mainly of chlorite, epidote, actinolite, and albite)
metamorphic
Tufa (Limestone)
Calcareous Tufa (CaCO3)
sedimentary
Leopardite
Quartz porphyry / Quartz monzonite with manganese oxide spots
igneous
Gneiss
Gneiss (SiO2-rich metamorphic rock)
metamorphic
Granite Gneiss
Gneiss (containing quartz, alkali feldspar, plagioclase, biotite/amphibole)
metamorphic
Epidote (likely Unakite component or Epidosite)
Epidote (Ca2(Al2Fe)(SiO4)(Si2O7)O(OH))
metamorphic
Granite Pebble
Felsic Igneous Rock (Granitic composition)
igneous
Banded Gneiss
Gneiss (Felsic to Mafic Metamorphic Rock)
metamorphic
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss (Foliated Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-Grade Metamorphic Rock)
metamorphic
Lava Rock with Fabric Impression
Scoria or Basalt with anthropogenic impressions
igneous
Jasper (likely Brecciated or Multi-colored)
Jasper (SiO2)
sedimentary
Yellow Apatite
Fluorapatite (Ca5(PO4)3(F,Cl,OH))
mineral
Black Spinel
Magnesium Aluminum Oxide (MgAl2O4)
mineral
Gneiss
Gneiss
metamorphic
Citrine
Silicon Dioxide (SiO2) with iron impurities
gemstone
Granite Gneiss
Granitoid Gneiss
metamorphic
Gravel (Crushed Stone Aggregates)
Mixed Siliciclastic / Carbonate Aggregate
sedimentary
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
mineral
Granitic Gneiss
Gneiss (Metamorphic rock predominantly containing quartz, K-feldspar, and plagioclase)
metamorphic
Granitoid (Granite/Gneiss mix)
Granite or Granitic Gneiss (Silicon dioxide SiO2 with Al, K, Na silicates)
igneous/metamorphic
Chert (Arrowhead Fragment)
Microcrystalline Quartz (SiO2)
sedimentary