Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
Category
Browse mineral like biological tissue specimens identified by the Rock Identifier community.
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
Quartz Geode
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lepidolite - Lithium-rich Mica)
Blue Quartz
Quartz (Silicon Dioxide) with blue inclusions (SiO2)
Chrysocolla on Quartz with Iron Oxides
Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)
Conglomerate
Conglomerate rock
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Goethite/Limonite Iron Ore Node
Goethite (FeO(OH)) or Limonite (mixture of hydrated iron oxides)
Banded Gneiss
Gneiss (variable mineral composition)
Bumblebee Jasper
Calcite-bearing Volcanic Tuff containing Sulfur and Arsenic (Orpiment/Realgar)
Greenstone (Epidote/Chlorite Rich Rock)
Metabasalt (often contains Epidote Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH))
Fossilized Shark Tooth (Basal Bone)
Otodus sp. (Mineralized Hydroxyapatite)
Rose Quartz
Quartz (Silicon Dioxide - SiO2)
Pegmatite with Smoky Quartz and Feldspar
Pegmatite (Quartz: SiO2, Feldspar: KAlSi3O8)
Schist
Mica Schist
Schist
Mica Schist
Greenschist
Chlorite schist
Blue Quartzite
Quartzite (primarily SiO2 with inclusions like Dumortierite or Magnesio-riebeckite)
Yellow Aventurine
Silicon Dioxide (SiO2) with inclusion of Mica
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Vesicular Basalt (Amygdaloidal)
Amygdaloidal Basalt
Garden Quartz (Lodalite)
Silicon Dioxide (SiO2) with various inclusions
Greenschist
Greenschist facies rock (containing chlorite, actinolite, and epidote)
Greenschist
Greenschist facies rock (containing chlorite, actinolite, albite, and epidote)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Red aventurine
Silicon Dioxide (SiO2) with Hematite/Goethite inclusions
Schist
Mica Schist (variety: Muscovite/Biotite Schist)
Gneiss (specifically a water-worn pebble)
Gneiss
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Yellow Jasper
Microcrystalline Quartz with Iron Oxide (SiO2)
Yellow Chalcedony (common opal or chert variant)
Silicon Dioxide (SiO2)
Diorite (River Cobble)
Intermediate plutonic igneous rock
French Bulldog (Blue Variety)
Canis lupus familiaris
Chrysocolla on Matrix
Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4·nH2O
Vanadinite
Vanadinite (Pb5(VO4)3Cl)
Bornite
Bornite (Cu5FeS4)
Kaolinite (Chalky Clay)
Kaolinite (Al2Si2O5(OH)4)
Granatic Pegmatite
Pegmatitic Granite
Amygdaloidal Basalt with Epidote/Chlorite
Basalt (containing (Ca2(Al2Fe3+)(SiO4)(Si2O7)O(OH)))