Manganese Ore (Psilomelane/Pyrolusite)
Psilomelane ((Ba,H2O)2Mn5O10) and Pyrolusite (MnO2)
Mineral
Category
Mineral, Metal (Element)
Browse mineral, metal (element) specimens identified by the Rock Identifier community.
Learn about Mineral, Metal (Element) in the encyclopedia
View all →
Pink Granite
Phaneritic Igneous Rock (high K-Feldspar content)
igneous
Granite
Plutonic Igneous Rock
igneous
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Olivine
(Mg,Fe)2SiO4
mineral
Pyrite in Quartz
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
mineral
Quartz Vein in Pelite (Metamorphic Rock)
Hydrothermal Quartz Veining in Metasedimentary Rock (SiO2)
metamorphic
Bauxite
Bauxite (Al(OH)3, AlO(OH), AlOOH)
sedimentary
Bauxite
Bauxite (Al(OH)3, AlO(OH))
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Yellow Beryl (Heliodor)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Limonite (Iron Stone/Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
mineral
Limonite-stained Gossan/Ironstone
Goethite and Hematite (Fe2O3 • nH2O)
sedimentary
Granite
Intrusive igneous rock
igneous
Bornite
Cu5FeS4
mineral
Celestite (Celestine)
Strontium sulfate (SrSO4)
mineral
Copper Ore with Malachite and Chrysocolla
Cu2CO3(OH)2 (Malachite) with Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Copper Ore (likely Malachite or Chrysocolla staining)
Copper Secondary Mineral (e.g., Cu2CO3(OH)2)
mineral
Beryl in Quartz Matrix
Beryllium Aluminum Silicate (Be3Al2Si6O18)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Bauxite
Aluminium ore (Hydrated aluminium oxides AlOx(OH)3-2x)
sedimentary
Aura Quartz Bead
Silicon dioxide (SiO2) with metal coating
mineral with artificial coating
Green Aura Quartz (Titanium treated Kyanite or Quartz)
Silicon Dioxide (SiO2) or Aluminum Silicate (Al2SiO5) with Titanium/Metal Oxide coating
mineral (man-made aura treatment)
Quartz-bearing pegmatitic rock, likely granite/pegmatite
Feldspar–quartz pegmatite; chiefly K-feldspar, plagioclase, quartz, and possible mica
igneous
Lepidolite
K(Li,Al)3(Al,Si,3O10)(F,OH)2
mineral
Copper Ore with Malachite and Chalcocite
Copper-bearing Mineral Assemblage (Cu2CO3(OH)2 + Cu2S)
mineral
Beryl (likely var. Aquamarine or Goshenite) in Matrix
Beryllium Aluminum Silicate (Be3Al2Si6O18)
mineral
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Quartz-rich granitic rock, possibly pegmatite
Granite or granitic pegmatite; primarily quartz (SiO₂), feldspar, and minor mica/iron oxides
igneous
Bauxite
Bauxite (Al2O3·2H2O)
sedimentary
Bauxite
Al2O3·2H2O (Aluminum Hydroxide)
sedimentary
![Mystic Topaz (Treated Quartz or Topaz) (Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating) — gemstone](https://media.rock.id/mystic-topaz-treated-quartz-or-topaz-b5749325-4a81-403d-a0ed-452e3335d125-thumbnail.jpg)
Mystic Topaz (Treated Quartz or Topaz)
Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating
gemstone
Granite
Felsic intrusive igneous rock
igneous
Colorless Quartz (Rhinestone)
Silicon Dioxide (SiO2)
mineral
Quartz-rich hydrothermal ore rock, likely gold-bearing quartz vein
Milky quartz (SiO₂) with iron-oxide staining and probable sulfide minerals; host rock may be schist or altered granite
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Native metal specimen, likely galena or metallic slag
Probably galena (lead sulfide, PbS); identification is uncertain from the image alone
mineral
Granite
Intrusive Igneous Rock
igneous