Quartz Geode
Silicon Dioxide (SiO2)
Category
Browse sedimentary (secondary mineral) within igneous specimens identified by the Rock Identifier community.
Quartz Geode
Silicon Dioxide (SiO2)
Titanium Quartz (Rough)
Titanium-included Silicon Dioxide (SiO2 + Ti)
Quartz (Milk Quartz Cobble)
Silicon Dioxide (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Parti Sapphire
Corundum (Al2O3)
Milky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Amethyst (Quartz variety)
Silicon Dioxide (SiO2) with iron impurities
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Smoky Quartz Cluster
Smoky Quartz (Silicon Dioxide - SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Amethyst Quartz (Chevron Amethyst)
Silicon Dioxide (SiO2) with iron impurities
Rose Quartz
Silicon Dioxide with traces of Titanium, Iron, or Manganese (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Orange Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Sunstone (Feldspar variety)
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Eudialyte
Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Granite
Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)
Aventurine Quartz
Silicon Dioxide (SiO2) with inclusions (typically Fuchsite/Mica)
Jasper (Iron-stained Chert)
Silicon Dioxide (SiO2) with impurities of Hematite or Goethite
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Ruby
Corundum (Al2O3 with Chromium impurities)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Schist
Crystalline Metamorphic Rock (Schistose)
Cobaltian Calcite
Cobalt-bearing Calcite (Ca,Co)CO3
Blue Apatite
Fluoroapatite (Ca5(PO4)3F)
Septarian Nodule
Septarian Concretion (Calcium Carbonate/Aragonite/Calcite)
Turquoise (Dyed Howlite/Magnesite imitation)
CuAl6(PO4)4(OH)8·4H2O (Target mineral) / Ca2B5SiO9(OH)5 (Actual specimen: Howlite)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Banded Chalcedony (Agate)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Moonstone (Feldspar variety)
Orthoclase Feldspar (KAlSi3O8)
Magnetite
Magnetite (Fe3O4)
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminium phosphate)
Turquoise
Hydrous phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Turquoise (likely Sleeping Beauty variety or treated Howlite imitation)
Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O