Schist
Schist (containing Quartz, Mica, and Amphibole)
Category
Browse mineral like (anthropogenic) specimens identified by the Rock Identifier community.
Schist
Schist (containing Quartz, Mica, and Amphibole)
Pink Feldspar / Rhodochrosite (Tumbled Pink Quartzite)
SiO2 (Quartz) / KAlSi3O8 (Potassium Feldspar)
Chert (Green variety)
Microcrystalline Quartz (SiO2)
Copper Ore
Cupriferous Rock / Mixed Mineral Matrix
Basalt with Vesicles
Vesicular Basalt (comprising Plagioclase Feldspar, Pyroxene, and Olivine)
Pyritic Quartzite
Metequartzite with FeS2 (Pyrite) inclusions
Sandstone with Ironstone Concretion
Arenite with Ferruginous Cement
Chert (Vuggy Chert)
Silicon Dioxide (SiO2)
Amber and Tumbled Stones
Fossilized Tree Resin (Succinite)
Bauxite
Bauxite (mainly Al(OH)3, AlO(OH))
Amber
Succinite (Fossilized Tree Resin)
Greywacke (River Slikenside)
Greywacke (Lithic Sandstone)
Coarse Sand Grain / Lithic Fragment
Clastic Sediment (Lithic fragment or Quartz/Feldspar grain)
Oolitic Chert
Silicon Dioxide (SiO2) with Oolitic texture
Pegmatite
Igneous Pegmatite (Quartz-Feldspar-Mica)
Granatic Pegmatite
Pegmatitic Granite
Granitic Pegmatite
Pegmatite containing Quartz, Pink Potassium Feldspar, and Muscovite Mica
Granitic Pegmatite
Coarse-grained Igneous Rock (Granitic composition: KAlSi3O8, SiO2)
Rough Garnet (likely Almandine or Pyrope)
Garnet group; Almandine Fe3Al2(SiO4)3 or Pyrope Mg3Al2(SiO4)3
Schist
Mica Schist (Group of medium-grade metamorphic rocks)
Blue Sapphire
Corundum (Al2O3)
Sandstone (Ferruginous)
Arenite with Iron Oxide matrix
Gneiss
Metamorphic Gneiss
Black Sand (Magnetite Sand)
Magnetite-rich Placers (Fe3O4)
Turquoise
Turquoise (Hydrated phosphate of copper and aluminium), CuAl6(PO4)4(OH)8·4H2O
Himalayan Pink Salt
Halite (NaCl) with iron oxide inclusions
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Metasedimentary or Igneous Matrix
Granite
Felsic intrusive igneous rock
Gneiss
Gneiss
Gneiss
Gneiss
Diamond
Carbon (C)
Mica Schist
Mica Schist (primarily Muscovite or Biotite sheets with Quartz)
Granite
Intrusive Felsic Igneous Rock
Diorite (Dalmatian Stone variant)
Intermediate Phaneritic Igneous Rock
Blue Goldstone
Aventurine Glass (Silicon Dioxide with metal inclusions)
Granite
Phaneritic Granocrystalline Igneous Rock
Gneiss
Gneissic Metamorphic Rock
Schist
Mica Schist
Diorite (Dalmatian Stone variant)
Phaneritic Intermediate Plutonic Rock (Diorite)
Sandstone Pebble with Iron Staining
Clastic Sedimentary Rock (primarily Quartz with Fe2O3 oxides)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Diorite
Intermediate Phaneritic Igneous Rock