Biotite Schist (likely)
Biotite Schist (rock), Biotite (mineral)
Category
Browse mineral (metal) specimens identified by the Rock Identifier community.
Biotite Schist (likely)
Biotite Schist (rock), Biotite (mineral)
Tiger's Eye (Mineral Collection)
Tiger's Eye (SiO2 with crocidolite inclusions)
Gneiss
Gneiss (Metamorphic high-grade)
Limonite/Hematite Ironstone
Goethite-rich Ironstone (FeO(OH) · nH2O)
Brimstone (Native Sulfur)
Native Sulfur (S)
Malachite
Malachite - Cu2CO3(OH)2
Spiny Oyster Shell
Spondylus (Calcium Carbonate, CaCO3)
Fuchsite (Chrome Mica)
K(Al,Cr)2(AlSi3O10)(OH)2
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Scoria with Calcite Infills
Vesicular Basalt with secondary Calcification (CaCO3)
Azurite-Malachite with Limonite
Cu3(CO3)2(OH)2 (Azurite) / Cu2CO3(OH)2 (Malachite)
Lapis Lazuli
Sodium aluminum silicate with sulfur (main component: Lazurite [(Na,Ca)8(AlSiO4)6(SO4,S,Cl)2])
Quartz (Rock Crystal) with minor impurities
Quartz (SiO2)
Limonite (Ironstone Concretion)
Limonite (Hydrous Ferric Oxides mixed with Goethite)
Limonite Concretion (Ironstone)
Limonite / Goethite (FeO(OH)·nH2O)
Limonite Concretion (Ironstone)
Limonite (FeO(OH)·nH2O) / Goethite
Limonite (with goethite)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
Limonite (Gozzany Iron)
Limonite (FeO(OH)·nH2O)
Bauxite
Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))
Limonite (Iron Ore)
Limonite (Hydrous ferric oxides), generic formula FeO(OH)·nH2O
Limonite (Yellow Ochre)
Limonite (an amorphous mixture of hydrated iron oxides, primarily FeO(OH)·nH2O)
Synthetic Wolf Plush (Non-mineral)
Canis lupus similis (Prop material: Polyester & Synthetic fibers)
Sandstone (Banded)
Clastic Sedimentary Rock: Arenite
Satin Spar (Gypsum)
Hydrous calcium sulfate (CaSO4·2H2O)
Quartz (Chatoyant or Milky variety)
Silicon Dioxide (SiO2)
Magnetite
Magnetite (Fe3O4)
Quartz Geode
Silicon Dioxide (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Amygdaloidal Basalt
Amygdaloidal Basalt with Secondary Infilling (e.g., Agate, Quartz, or Zeolite)
Kyanite in Quartz
Kyanite (Al2SiO5) with Quartz (SiO2)
Gold in Matrix
Native Gold (Au)
Quartz (Granular Milky Quartz fragment)
Silicon Dioxide (SiO2)
Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
Orthoclase Feldspar (Twinning Specimen)
Orthoclase (KAlSi3O8)
Fluorite
Calcium Fluoride (CaF2)
Fluorite (Purple Fluorite in Matrix)
Fluorite (Calcium Fluoride, CaF2)
Chalcedony (Botryoidal Agate vein)
Chalcedony (Microcrystalline Quartz) - SiO2
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz with Iron Inclusions
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Amygdaloidal Basalt
Amygdaloidal Basalt (extrusive volcanic rock with mineral inclusions)