Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Category
Sedimentary Or Igneous (Host Environment)
Browse sedimentary or igneous (host environment) specimens identified by the Rock Identifier community.
Learn about Sedimentary Or Igneous (Host Environment) in the encyclopedia
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Quartz pebble
Silicon Dioxide (SiO2)
sedimentary
Sapphire
Corundum (Al2O3) with traces of Iron and Titanium
gemstone
Quartz with inclusions
SiO2
mineral
Concrete
Anthropogenic Conglomerate
sedimentary
Opal
Hydrated Silica (SiO2·nH2O)
mineral
Wishing Stone (Quartz-veined Metamorphic/Sedimentary Rock)
Quartz Vein in Greywacke/Slate (SiO2 in host rock)
metamorphic
Fluorite
Calcium Fluoride (CaF2)
mineral
Jasper / Agate
Silicon dioxide (SiO2)
sedimentary
Quartz Druzy (on Calcedony/Quartz base)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Eudialyte
Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Unidentified gray-brown stone
Likely fine-grained quartz–feldspar rock; exact identification is not possible from this close, blurred image
mineral
Quartz Veined Mudstone
Metasedimentary rock with Quartz (SiO2) veins
metamorphic
Wishing Stone (Basalt with Quartz Vein)
Basalt containing a microcrystalline quartz (SiO2) or calcite vein
igneous
Common Opal in Host Rock
Hydrated Silica (SiO2·nH2O)
mineraloid
Healer's Gold (Pyrite and Magnetite in Schist)
Magnetite (Fe3O4) and Pyrite (FeS2) in Mica Schist
metamorphic
Quartz Pebble with Drusy/Crystalline Pocket
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Crystalline Silicon Dioxide (SiO2) in Geode form
mineral
Yellow Jasper
Silicon Dioxide (SiO2)
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Fossiliferous Rock (Invertebrate Fossil in Matrix)
Fossiliferous limestone or shaly matrix containing skeletal fossil remains
fossil
Epidote with Quartz Vein
Epidote-bearing metamorphic rock with quartz (Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Sedimentary or Igneous Matrix
igneous
Corundum (Sapphire in Host Rock)
Corundum (Aluminum Oxide, Al2O3)
mineral
K2 Jasper (K2 Granite)
Granite with Azurite inclusions (SiO2 + Cu3(CO3)2(OH)2)
igneous
Tumbled jasper
Microcrystalline quartz (chalcedony), predominantly SiO₂, with iron-oxide inclusions
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (specifically Milky or Iron-stained Quartz)
Silicon Dioxide (SiO2)
mineral
Basalt cobble
Basalt, a fine-grained mafic volcanic rock composed chiefly of plagioclase feldspar and pyroxene, commonly with minor olivine and iron-titanium oxides
igneous
Emerald in Matrix
Beryl (Be3Al2Si6O18)
mineral
Amethyst
Amethyst (Silicon Dioxide, SiO2)
mineral
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O
mineral
Clear Quartz (Druzy)
Crystalline Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2) - Crystalline Quartz
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
Mineral
Chalcedony (Agate/Carnelian)
Cryptocrystalline Quartz (SiO2)
mineral