Vesicular Basalt
Aphanitic Mafic Volcanic Rock
igneous
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
View all →
Muscovite Mica
KAl2(AlSi3O10)(OH)2
mineral
Greenstone / Greenschist
Metamorphosed mafic igneous rock (Greenschist facies)
metamorphic
Green Sandstone
Glauconitic Sandstone
sedimentary
Vanadinite
Pb5(VO4)3Cl
mineral
Granite
Granite
Igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Copper Ore Specimen
Cupriferous Rock / Malachite-bearing ore
mineral
Plume Agate or Moss Agate
Silicon dioxide (SiO2)
Mineral
Quartz Geode
Crystalline Silicon Dioxide (SiO2) in sedimentary/volcanic host
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
metamorphic
Schist
Mica Schist
metamorphic
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Schist (Garnet-Mica Schist)
Garnet-Mica Schist
metamorphic
Sandstone
Arenite
sedimentary
Turtle Stone / Septarian Nodule (Fragment)
Septarian Concretion (Calcite, Aragonite, and Limestone)
sedimentary
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Graphic Granite / Pegmatite
Graphic Granite (Alkali Feldspar and Quartz)
igneous
Native Copper
Copper (Cu)
mineral
Quartz with impurities or Host Rock
SiO2 (Silicon Dioxide) with mixed silicates
mineral
Vesicular Basalt with Pyrite
Basalt (MgFe2+)(Si,Al)2O6 containing FeS2 inclusions
igneous
Granitic Pegmatite
Granite Pegmatite (coarse-grained intrusive igneous rock)
igneous
Pegmatitic Granite
Granite with Orthoclase Feldspar and Quartz (SiO2, KAlSi3O8)
igneous
Schist
Mica Schist
metamorphic
Conglomerate
Clastic Sedimentary Rock
sedimentary
Greenschist
Greenschist (Chlorite-actinolite schist)
metamorphic
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Blue Apatite
Fluorapatite / Ca5(PO4)3F
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Granodiorite Pebble
Granodiorite
igneous
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)
metamorphic
Green Aventurine
Quartz (SiO2) with fuchsite inclusions
mineral
Glauconitic Sandstone
Glauconitic Quartz Arenite (with K,Mg,Fe,Al silicate hydroxide)
sedimentary
Desert Rose (Barite Rose / Gypsum Rose)
Barium Sulfate (BaSO4) or Hydrous Calcium Sulfate (CaSO4%22H2O)
mineral
Bauxite
Bauxite (Al(OH)3, AlO(OH), AlOOH)
sedimentary
Greenschist
Greenschist facies metamorphic rock
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
metamorphic
Yellow Aventurine
Silicon Dioxide with inclusions (SiO2 + Muscovite/Fuchsite)
mineral
Dendritic Agate
Dendritic Agate (Silicon Dioxide with Manganese or Iron Oxide inclusions, SiO2)
mineral
Greenschist
Greenschist (Chlorite-actinolite schist)
metamorphic
Green Fluorite
Fluorite (Calcium Fluoride - CaF2)
mineral