Sea Bean (Hamburger Bean)
Mucuna sloanei
organic/biological specimen
Category
Mineral Like Biological Tissue
Browse mineral like biological tissue specimens identified by the Rock Identifier community.
Learn about Mineral Like Biological Tissue in the encyclopedia
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Gneiss
Gneiss
metamorphic
Granite
Granite
igneous
Gneiss
Metamorphic Gneiss
metamorphic
Gneiss
Gneiss (Metamorphic high-grade)
metamorphic
Ambergris
Ambrein (C30H52O)
mineraloid / organic geological substance
Gneiss
Gneiss
metamorphic
Kimberlite
Ultramafic igneous rock
igneous
Limestone (Cliff Formation)
Limestone (predominantly CaCO3 as calcite)
Sedimentary
Mixed beach pebbles and shell fragments
Mostly carbonate rocks, likely limestone/calcarenite, with mollusk-shell bioclasts; exact species cannot be determined visually
sedimentary
Unopened Geode
Geode (containing various mineralization like Quartz SiO2)
sedimentary
Granodiorite
Granodiorite
Igneous
Feldspathic Gneiss (Granite Gneiss)
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Copper Ore (Chrysocolla/Malachite in host rock)
Hydrated copper phyllosilicate and copper carbonate hydroxide
mineral
Copper Ore (Malachite and Azurite on Host Rock)
Cuprite, Malachite, and Azurite dissemination in gangue
mineral
Quartz Vein in Greenstone
Metamorphic rock with quartz vein (SiO2 / mixed silicates)
metamorphic
Polished iron-stained chert or jasper pebble
Microcrystalline quartz (SiO₂), likely ferruginous chert/jasper
sedimentary
Gneiss
Gneiss
metamorphic
Fluorite
Calcium fluoride (CaF2)
mineral
Greenstone
Protolith: Basaltic 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
Granitic Gneiss
Gneiss (high-grade metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Granitic Gneiss
Gneiss (Complex silicate composition)
metamorphic
Banded Gneiss
Banded Gneiss (Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Granite
Felsic intrusive igneous rock
igneous
Fossilized Bone Fragment
Vertebrate Fossil
fossil
Unakite
Altered Granite (composed of pink orthoclase feldspar, green epidote, and colorless quartz)
igneous
Limonite
FeO(OH)·nH2O
mineral
Pink Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Bauxite
Bauxite (Al2O3·2H2O mixed with iron oxides)
sedimentary
Erythrite on Matrix
Cobalt Bloom (Co3(AsO4)2·8H2O)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Pegmatite
Pegmatite (felsic intrusive igneous rock)
igneous
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral