Brachiopod Fossil
Phylum Brachiopoda
fossil
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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Fossilized Bone
Permineralized Bone (Vertebrate Fossil)
fossil
Fossilized Bone
Permineralized Vertebrate Bone
fossil
Quartz with inclusions (likely Tourmaline or Biotite)
Silicon Dioxide (SiO2)
mineral
Granite
Felsic intrusive igneous rock
igneous
Agate (Moss or Dendritic Agate)
Chalcedony (Silicon Dioxide, SiO2)
mineral
Granite
Granite
Igneous
Pink Dyed Agate (Pink Agate Slice)
Silicon Dioxide (SiO2) - Chalcedony / Cryptocrystalline Quartz
mineral
Petrified Wood
Silicified Wood (primarily SiO2 - Silicon Dioxide)
mineral
Gneiss
Banded Gneiss
metamorphic
Granodiorite
Intrusive Igneous Rock
igneous
Granite
Felsic intrusive igneous rock
igneous
Lepidolite
K(Li,Al)3(Si,Al)4O10(F,OH)2
mineral
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
mineral
Granite / Quartz with Mica inclusion
Granite (Plutonic Igneous Rock)
igneous
Green Aventurine
Silicon Dioxide with Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Fossilized Nut / Coprolite / Concretion
Trace Fossil / Permineralized Plant Material
fossil
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Copper-bearing Quartz Vein in Host Rock
Quartz with Malachite/Chrysocolla staining
igneous/metamorphic with mineral
Jasper (Chert / Chalcedony)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium aluminum silicate)
mineral
Lepidolite
K(Li,Al)3(Si,Al)4O10(F,OH)2
mineral
Blue Quartz (Dumortierite Quartz / Celestite)
Silicon Dioxide (SiO2) with inclusions
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Sunstone (Feldspar)
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8 with inclusions of Hematite/Goethite
mineral
Ruby
Corundum (Al2O3)
mineral
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
metamorphic
Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Diorite (Dalmatian Stone variant)
Intermediate Phaneritic Igneous Rock
igneous
Granite
Felsic intrusive igneous rock
igneous
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Black Obsidian
Volcanic Glass (predominantly SiO2)
igneous
Fluorite
Calcium Fluoride (CaF2)
mineral
Obsidian
Amorphous volcanic glass (70-75% SiO2)
igneous
Quartz with Iron Staining and Chlorite Inclusions
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(F,OH)2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Lepidolite
K(Li,Al)_3(Si,Al)_4O_10(F,OH)_2 (Lithium-bearing Mica)
mineral
Fossil Shark Tooth
Selachimorpha (Chondrichthyes dental fossil)
sedimentary
Fossilized Vertebra
Chordata fossil (Vertebra)
fossil