Gneiss (specifically Banded Gneiss)
Gneiss
Category
Browse mineral (treated) specimens identified by the Rock Identifier community.
Gneiss (specifically Banded Gneiss)
Gneiss
Diorite
Diorite (an intrusive igneous rock)
Granitic Gneiss
Gneiss (High-grade regional metamorphic rock)
Vesicular Basalt with Xenocrysts
Mafic Igneous Plutonic/Extrusive Complex
Gneiss
Gneiss (High-grade metamorphic rock)
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Granite
Granite (Phaneritic Igneous Rock)
Granite
Phaneritic Felsic Igneous Rock
Granite
Granite (Felsic Plutonic Rock)
Granite
Granite (a felsic intrusive igneous rock)
Pumice
Pumice (volcanic rock)
Pyrite in Shale
Iron Sulfide (FeS2) in Sedimentary Matrix
Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
Quartz-Veined Mudstone
Argillaceous Mudstone with Quartz Veining
Schist
Mica Schist (primarily consisting of muscovite, biotite, and quartz)
Blue Celestite (with Galena)
Strontium sulfate (SrSO4) and Lead sulfide (PbS)
Limonite (Ochreous)
FeO(OH)·nH2O (Hydrated Iron Oxide)
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite mica)
Sandstone
Sandstone (lithified quartz arenite, arkose, graywacke, etc. depending on composition)
Hematite Beads
Hematite (Fe2O3)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Schist
Mica Schist (primarily consisting of muscovite KAl2(AlSi3O10)(OH)2 or biotite K(Mg,Fe)3(AlSi3O10)(OH)2)
Pink Granite
Felsic Plutonic Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)
Quartz (Riverstone / Cobble)
Silicon Dioxide (SiO2)
Gneiss
Gneiss
Schist
Mica Schist
Aventurine (likely Green Aventurine)
Quartz (SiO2) with included minerals (Fuchsite or Chlorite for green color)
Chakra Stone Bracelet (mixed gemstones)
Multi-mineral/Gemstone assembly (primarily Quartz variety beads)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Limonite (Iron Ore)
Limonite (Hydrated Iron Oxide, FeO(OH)·nH2O)
Gneiss
Gneiss
Fossilized Shark Teeth
Carcharhiniformes or Lamniformes species (common mineral: Fluorapatite/Ca5(PO4)3F)
Serpentinite (often containing Jadeite/Nephrite)
Antigorite-rich Serpentine Rock, (Mg, Fe)3Si2O5(OH)4
Chert Pebble (Jasper/Quartz variety)
Microcrystalline Quartz (SiO2)
Granite
Phaneritic Felsic Igneous Rock
Schist
Mica Schist
Basalt (Amygdaloidal)
Amygdaloidal Basalt
Moonstone (bead form)
Potassium Aluminum Silicate (KAlSi3O8) - a variety of Orthoclase Feldspar
Fluorite in Matrix
Fluorite (CaF2) within a host rock matrix