Quartzite
Hydrothermal Quartz or Quartzite (SiO2)
Category
Browse mineral; variety of quartz specimens identified by the Rock Identifier community.
Quartzite
Hydrothermal Quartz or Quartzite (SiO2)
Quartz-veined Sedimentary Rock
Hydrothermally veined Clastic Sedimentary Rock (SiO2 veins in Matrix)
Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Metasedimentary or Igneous matrix
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble (Iron-Stained)
Quartz (Silicon Dioxide - SiO2)
Smoky Quartz (with Druzy/Polished Edge)
Smoky Quartz (Silicon Dioxide, SiO2)
Orange Calcite (Polished Sphere)
Calcium Carbonate (CaCO3)
Milky Quartz in Conglomerate Matrix
Silicon Dioxide (SiO2) within Clastic Sedimentary Rock
Fuchsite Quartzite
Fuchsite-bearing Quartzite
Basalt with Epidote Veining
Basalt (Mafic Extrusive Rock) with Ca2(Al,Fe)3(SiO4)3(OH)
Amazonite
Amazonite (KAlSi3O8)
Crushed Stone (Gravel/Aggregates)
Crushed rock aggregate (varied composition including Granite, Limestone, and Quartz)
Bull Quartz (White Quartz)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Moonstone
Orthoclase Feldspar (KAlSi3O8)
Green Aventurine (Carved)
Silicon Dioxide (Quartz variant) with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O(OH)2)
Quartz Pebble
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron inclusions
Ferruginous Sandstone
Sandstone, Iron-rich
Quartz (Quartzite)
Silicon Dioxide (SiO2)
Quartz / Quartzite
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Jadeite Jade
NaAlSi2O6 (Sodium Aluminum Silicate)
Yellow Jasper / Chert
Silicon Dioxide (SiO2) with Goethite or Limonite inclusions
Fluorite
Fluorite (Calcium Fluoride, CaF2)
Amazonite
Potassium Feldspar (KAlSi3O8)
Prase or Green Quartz
Silicon Dioxide (SiO2 with actinolite or chlorite inclusions)
Opalite
Synthetic Opalised Glass
Dalmatian Stone
Dalmatian Jasper (a misnomer for an Aplite with Arfvedsonite spots)
Fuchsite
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
Schorl (Black Tourmaline)
NaFe3Al6Si6O18(BO3)3(OH)3OH (Iron tourmaline)
Fuchsite
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
Sunstone
Oligoclase or Andesine (Labradorite) Feldspar (Na,Ca)(Si,Al)4O8
Blue Agate (likely dyed)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Satin Spar (Gypsum)
Hydrous Calcium Sulfate (CaSO4·2H2O)
Smoky Quartz
Silicon Dioxide (SiO2)
White Quartz (Tumbled)
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Dream Amethyst (Chevron Amethyst)
Silicon Dioxide (SiO2) with iron impurities