Limonite
FeO(OH)·nH2O
mineral
Category
Mineral Like Byproduct (Technogenic)
Browse mineral like byproduct (technogenic) specimens identified by the Rock Identifier community.
Learn about Mineral Like Byproduct (Technogenic) in the encyclopedia
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Fluorite
Calcium fluoride (CaF2)
mineral
Pegmatite
Pegmatite (felsic intrusive igneous rock)
igneous
Granitic Gneiss
Gneiss (high-grade metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Snowflake Obsidian
Volcanic Glass with Spherulite inclusions (mainly Cristobalite)
igneous
Quartz Vein in Sandstone
Quartzite veined quartz arenite
sedimentary
Shark Tooth Fossil
Chondrichthyes dentition
fossil
Shark Tooth Fossil
Chondrichthyes tooth fossil
fossil
Pink Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Pegmatite
Intrusive Igneous Rock
igneous
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Granitic Gneiss
Gneiss (Complex silicate composition)
metamorphic
Muscovite
Muscovite mica, KAl2(AlSi3O10)(OH)2
mineral
Erythrite on Matrix
Cobalt Bloom (Co3(AsO4)2·8H2O)
mineral
Banded Gneiss
Banded Gneiss (Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Fossilized Shark Tooth
Chondrichthyes (Class) fossilized dentition
fossil
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Fossil Coral
Rugosa or Tabulata coral fossil (Calcium carbonate, CaCO3)
fossil
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
mineral
Muscovite Mica
KAl2(AlSi3O10)(OH)2
mineral
Septarian Nodule
Septarian Concretion (Calcite, Aragonite, Limestone, and Barite)
sedimentary
Lepidolite
K(Li,Al)3(Al,Si,3O10)(F,OH)2
mineral
Native Copper Bearing Basalt
Cu
igneous
Aventurine
Quartz with fuchsite inclusions (SiO2)
mineral
Raw Fluorite
Calcium Fluoride (CaF2)
mineral
Bismuthinite with Chalcopyrite and Quartz
Bismuthinite (Bi2S3) and Chalcopyrite (CuFeS2)
mineral
Blue Quartz
Silicon Dioxide (SiO2)
mineral
Garnet
Pyrope or Almandine (X3Y2(SiO4)3)
mineral
Petrified Wood
Silicified wood (SiO2)
fossil
Shark Tooth Fossil
Carcharocles megalodon or related shark taxa (Fossilized dentition)
fossil
Amygdoidal Basalt
Extrusive mafic igneous rock with mineral amygdules
igneous
Blue goldstone (man-made glass)
Copper-bearing aventurine glass; synthetic silicate glass
mineral
Diorite
Intermediate plutonic igneous rock
igneous
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Muscovite
KAl2(AlSi3O10)(OH)2
mineral
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
mineral
Granite fragment
Granite
igneous
Granite
Felsic intrusive igneous rock
igneous
Fossil Snail Shell
Gastropoda fossil
fossil