Quartz Crystal
Silicon Dioxide (SiO2)
Category
Browse mineral (gemstone variety of beryl) specimens identified by the Rock Identifier community.
Quartz Crystal
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Moonstone (with Tourmaline/Mica)
Orthoclase/Albite Feldspar (KAlSi3O8 / NaAlSi3O8)
Sunstone (Feldspar variety)
(Ca,Na)(Al,Si)4O8 with Hematite or Goethite inclusions
Quartz (Crystal)
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Sunstone (Feldspar variety)
Oligoclase or Andesine (Na,Ca)(Al,Si)4O8
Quartz (Peach/Orange)
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Citrine
SiO2 (Silicon Dioxide)
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8) with Albite inclusions
Clear Quartz / Rock Crystal
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Amethyst (Quartz variety)
Silicon Dioxide (SiO2) with iron impurities
White Quartz
Silicon Dioxide (SiO2)
Carnelian
Carnelian (Silicon Dioxide: SiO2 with Iron Oxide impurities)
Garnet (Almandine)
Almandine, Fe3Al2Si3O12
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Carnelian
Carnelian (a variety of Chalcedony) - SiO2
Pink Sapphire (Corundum)
Aluminum Oxide (Al2O3) with Chromium/Iron impurities
Fuchsite
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
Quartz Rock
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Quartz
Silicon Dioxide (SiO2)
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide impurities), SiO2
Agate (Polished Cabochon Slice)
Silicon Dioxide (SiO2)
Blue Topaz
Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide with iron impurities (SiO2)
Chrysoprase
Chalcedony with nickel impurities (SiO2)
Lake Superior Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Potassium Feldspar
Orthoclase (KAlSi3O8)