Quartz (Smoky/Clear variety)
Silicon Dioxide (SiO2)
Category
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Quartz (Smoky/Clear variety)
Silicon Dioxide (SiO2)
Quartz
Silicon dioxide (SiO2)
Quartz (Gravel Pebble)
Silicon Dioxide (SiO2)
Dragon Blood Jasper
Epidote with Pietersite or Red Jasper (Silicate mineral)
Gneiss
Granitic Gneiss
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)
Blue Chalcedony
Chalcedony (cryptocrystalline Silicon Dioxide, SiO2)
Blue Chalcedony
Chalcedony (Silicon Dioxide, SiO2)
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
Coquina or Fossiliferous Sandstone
Fossiliferous Calcarenite (CaCO3 with SiO2 inclusions)
Epidosite
Epidosite (Metasomatic rock consisting mainly of Epidote and Quartz)
Epidosite (Epidote-Quartz rock)
Epidote-rich hydrothermal rock
White Quartz Star
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2) / Rock Crystal
Gneiss
Gneiss
Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH)
Gneiss (Banded Gneiss)
Gneiss
Quartz in Matrix
Silicon Dioxide (SiO2)
Amazonite (likely)
Green microcline feldspar, KAlSi₃O₈
Likely galena-bearing ore
Galena (PbS), possibly mixed with quartz or carbonate gangue
Lepidolite
K(Li,Al)3(Al,Si,3O10)(F,OH)2
Green Aventurine
Quartz with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
Chevron Amethyst
SiO2 (Quartz with Manganese/Iron impurities)
Milky Quartz
Silicon Dioxide (SiO2)
Bixbyite on Rhyolite
Bixbyite (Mn2+,Fe3+)2O3
Smoky Quartz with Siderite and Pyrite
Silicon Dioxide (SiO2) with Ferrous Carbonate (FeCO3) and Iron Sulfide (FeS2)
Tiger's Eye
Silicon Dioxide (SiO2) with fibrous inclusions of Crocidolite
Desert Rose
Gypsum (CaSO4·2H2O) or Barite (BaSO4) with Sand inclusions
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Chert
Chert (microcrystalline quartz)
Unakite
Unakite (Epidotized Granite)
Gneiss
Gneiss
Quartz (Milky or Druzy Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Gneiss (specifically Banded Gneiss)
Gneiss
Serpentinite (likely)
Serpentinite, dominated by serpentine-group minerals (antigorite, lizardite, or chrysotile)
Sand and Gravel (Quartz-rich)
Unconsolidated fluvial/beach sediment (primarily Silica/SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz Druzy
Crystalline Silicon Dioxide (SiO2)