Quartz with Mica inclusions (likely Schist or Gneiss host)
Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(OH)2)
metamorphic
Category
Mineral (Extraterrestrial)
Browse mineral (extraterrestrial) specimens identified by the Rock Identifier community.
Note: Item is not a geological specimen
Polyester mesh and Ethylene-vinyl acetate (EVA) polymer
Synthetic / Anthropogenic Material
Dyed Quartz (imitating Emerald/Green Quartz)
Silicon Dioxide (SiO2) with artificial pigment
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Garden Quartz (Lodolite)
Quartz with inclusions (SiO2 + various inclusions such as Chlorite, Hematite, or Feldspar)
mineral
Red Jasper with Quartz Veining
Jasper (Silicon Dioxide, SiO2) with Quartz (SiO2) inclusions
sedimentary
Pink Granite
Phaneritic Felsic Igneous Rock (composed primarily of K-feldspar, Quartz, and Biotite)
igneous
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Green Aventurine
Silicon dioxide with Fuscite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
mineral
Schist
Mica Schist
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Moonstone
Orthoclase (KAlSi3O8) with inclusions of Albite (NaAlSi3O8)
mineral
Marble
Metamorphosed Limestone (main mineral: Calcite, CaCO3)
metamorphic
Schist
Mica Schist
metamorphic
Chrysocolla
Chrysocolla; (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock)
igneous
Pink Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Garden Quartz
Included Quartz (SiO2 with accessory minerals such as Chlorite, Hematite, or Feldspar)
mineral
Amethyst Sage Agate
Silicon Dioxide (SiO2) with trace minerals (Manganese/Iron oxides)
mineral
Ruby
Corundum (mineral species), variety: Ruby (Al2O3 with Cr3+ as the chromophore)
Mineral
Milky or Greenish Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Blue Apatite
Chlorapatite / Fluorapatite (Ca5(PO4)3(F,Cl,OH))
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
Mineral
Geode (unopened)
SiO2 - Chert-shelled concretion (mostly Quartz)
sedimentary
Shale
Fissile Mudrock (Clay-rich Sedimentary Rock)
sedimentary
Fossilized Shark Tooth (Sand Tiger)
Carcharias taurus (fossil specimen)
sedimentary
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
Sandstone
Arenite
sedimentary
Granite Pegmatite with Tourmaline and Muscovite
Pegmatite (Feldspar: KAlSi3O8, Quartz: SiO2, Schorl: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH))
igneous
Calamites (Fossil)
Calamites sp. (Tracheophyta, Equisetopsida)
sedimentary
Lapis Lazuli
Lapis lazuli (a rock primarily composed of Lazurite, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
metamorphic
Note regarding image quality
Indeterminate
Quartzite with inclusions
Metamorphosed Quartz-rich Rock (SiO2)
metamorphic
Pyrite on Limestone
Iron Disulfide (FeS2) in Calcium Carbonate (CaCO3) matrix
sedimentary (matrix) / mineral (inclusion)
Manganese Oxide Crust on Limestone
Manganese Oxides (e.g., Pyrolusite MnO2 or Romanechite) on CaCO3
sedimentary
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Pyrite in Quartz
Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)
mineral
Turquoise
Turquoise (Hydrated phosphate of copper and aluminium), CuAl6(PO4)4(OH)8·4H2O
mineral
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral
Desert Rose (Baryte or Selenite variant)
Barium Sulfate (BaSO4) or Gypsum (CaSO4·2H2O) with Sand inclusions
mineral
Sandstone (Iron-stained)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
sedimentary
Fluorite with Rhodochrosite
Fluorite (CaF2) and Rhodochrosite (MnCO3)
Mineral