Moonstone
Potassium Aluminum Silicate (KAlSi3O8)
Category
Browse igneous (anthropogenic) specimens identified by the Rock Identifier community.
Moonstone
Potassium Aluminum Silicate (KAlSi3O8)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Gneiss
High-grade regional metamorphic rock (Foliated)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Rough Quartz (likely Rose or Smoky variant)
Silicon Dioxide (SiO2)
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
White Calcite
Calcium Carbonate (CaCO3)
Sunstone
Plagioclase feldspar (with Copper or Hematite inclusions)
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with Chromium-rich Fuchsite mica
Clear Quartz
Quartz (Silicon Dioxide - SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Yellow Agate / Chalcedony
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Magnetite / Iron Ore
Magnetite (Fe3O4)
Quartz (Milky or Citrine-tinted)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Yellow Agate
Agate (Varietal form of Chalcedony/Quartz, SiO2)
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
Milky Quartz
Silicon Dioxide (SiO2)
Green Moss Agate
Silicon Dioxide with inclusions (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Labradorite
Labradorite (Plagioclase Feldspar Series - (Ca, Na)(Al, Si)4O8)
Milky Quartz
Silicon Dioxide (SiO2)
White Zircon
Zircon (Zirconium silicate, ZrSiO4)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Rose Quartz
Silicon Dioxide (SiO2)
Peach Moonstone
Orthoclase Feldspar (KAlSi3O8) with inclusions
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)
Nephrite Jade
Tremolite-Actinolite solid solution, Ca2(Mg,Fe)5Si8O22(OH)2
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Fluorite
Calcium fluoride (CaF2)
Peridot
Olivine ((Mg, Fe)2SiO4)
Moonstone (Feldspar variety)
Orthoclase Feldspar (KAlSi3O8)
Corundum (Ruby Variety)
Corundum (Al2O3)
Hypersthene
Hypersthene (Enstatite variety), (Mg,Fe)SiO3
Sunstone
Oligoclase (Plagioclase Feldspar) - (Ca, Na)(Al, Si)4O8
Blue Calcite
Calcium Carbonate (CaCO3)
Milky Quartz Pebble
Silicon Dioxide (SiO2)