Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Category
Browse metamorphic mineral specimens identified by the Rock Identifier community.
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Potassium Feldspar
K-Feldspar (KAlSi3O8)
Quartz (Clear Quartz)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Jadeite (Jade Ring)
NaAlSi2O6 (Sodium Aluminum Silicate)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Gneiss
Gneiss
Gneiss (Banded Gneiss)
Gneiss
Citrine
Silicon Dioxide (SiO2) with iron impurities
Raw Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Emerald / Green Beryl
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
White Marble
Recrystallized Calcite (CaCO3)
Marble (Calcitic)
Metamorphosed Limestone (CaCO3)
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
Venetian Gold Granite
Phaneritic Felsic Igneous Rock (Granite)
Fuchsite Schist
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2) in Schist
Greenstone / River Jadeite pebble
Metavolcanic rock / Chlorite or Actinolite-rich schist
Nuummite
Orthoamphibole (Gedrite-Anthophyllite series)
Petrified Wood
Silicified wood (primarily SiO2 - Silicon Dioxide/Quartz)
Lapis Lazuli
Lapis Lazuli (Complex silicate mineral mixture primarily Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Tiger's Eye
Pseudomorph of quartz after crocidolite (SiO2 with iron oxide inclusions)
Diorite (Gneissic)
Diorite
Nephrite Jade
Ca2(Mg,Fe)5Si8O22(OH)2
Iron-stained Quartzite / Chert
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
Green Aventurine
Silicon Dioxide (Quartz variety) with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Citrine
Silicon dioxide (SiO2)
Amazonite
Microcline (K(AlSi3O8))
Peach Moonstone
Feldspar (KAlSi3O8) with inclusions
Amethyst (Raw)
Amethyst (Silicon Dioxide with Iron impurities, SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Botryoidal Hematite
Iron Oxide (Fe2O3)
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Yellow Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO₂)
Smoky Quartz
Silicon Dioxide (SiO2)
Green Tourmaline
Elbaite - Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4
Plagioclase Feldspar
NaAlSi3O8 – CaAlSi2O8 (Sodium-Calcium Aluminum Silicates)