Granitic Gneiss
Gneiss (high-grade metamorphic rock)
metamorphic
Category
Mineral Like Byproduct (Technogenic)
Browse mineral like byproduct (technogenic) specimens identified by the Rock Identifier community.
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Gneiss
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Granitic Gneiss
Gneiss (Complex silicate composition)
metamorphic
Greenstone
Protolith: Basaltic rock
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Granodiorite
Granodiorite
Igneous
Banded Gneiss
Banded Gneiss (Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Unopened Geode
Geode (containing various mineralization like Quartz SiO2)
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Blue Quartz
Silicon Dioxide (SiO2) with inclusions
mineral
Unakite
Altered Granite (Epidote-bearing Granitic Rock)
metamorphic
Blue Quartz (potentially Dumortierite-included)
Silicon Dioxide (SiO2) with inclusions
mineral
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Fossilized Shark Tooth
Carcharocles or Otodus sp. (Micro-fossilized)
sedimentary
Greenstone
Greenschist / Meta-basalt
metamorphic
Limonite
FeO(OH)·nH2O
mineral
Granite
Felsic intrusive igneous rock
igneous
Greenstone
Metabasalt / Greenschist
metamorphic
Pink Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Erythrite on Matrix
Cobalt Bloom (Co3(AsO4)2·8H2O)
mineral
Fluorite
Calcium fluoride (CaF2)
mineral
Unakite
Altered Granite (composed of pink orthoclase feldspar, green epidote, and colorless quartz)
igneous
Fossilized Bone Fragment
Vertebrate Fossil
fossil
Bismuthinite with Chalcopyrite and Quartz
Bismuthinite (Bi2S3) and Chalcopyrite (CuFeS2)
mineral
Gneiss (Hornblende/Biotite Gneiss)
Foliated Metamorphic Rock (Quartz-Feldspar-Amphibole/Mica matrix)
metamorphic
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Granite
Felsic intrusive igneous rock
igneous
Diamond in Kimberlite
Kimberlite Matrix with Carbon (Diamond)
igneous
Pegmatite (Granitic)
Granite Pegmatite
igneous
Pegmatite
Igneous Pegmatite (Quartz, Feldspar, Micas)
igneous
Granite
Granite (felsic intrusive igneous rock)
igneous
Granite
Felsic intrusive igneous rock
igneous
Granite fragment
Granite
igneous
Peacock Ore
Bornite (Cu5FeS4) or Chalcopyrite treated with acid
mineral
Bauxite
Bauxite (Al2O3·2H2O mixed with iron oxides)
sedimentary
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Granite Pegmatite with Muscovite Mica
Granite Pegmatite (Silicon Dioxide and complex silicates)
igneous
Schist
Mica Schist
Metamorphic Rock