Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Category
Igneous And Metamorphic
Browse igneous and metamorphic specimens identified by the Rock Identifier community.
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Green Aventurine
SiO2 (Quartz with Fuchsite inclusions)
mineral
Adventurine (Green Quartz)
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
Serpentine
Serpentine (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
metamorphic
Peach Moonstone
Anorthoclase or Orthoclase Feldspar (K,Na)AlSi3O8
mineral
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Aventurine Quartz
Silicon dioxide with inclusions (KAl2(AlSi3O10)(OH,F)2)
metamorphic
Pearl and Garnet Glass
Calcium Carbonate (CaCO3) for pearl; Silicon Dioxide (SiO2) for glass
mineral and glass
Green Aventurine
SiO2 (Silicon Dioxide with inclusions of Fuchsite mica)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Agate (Polished Nodule)
Agate (Silicon Dioxide, SiO2)
mineral
Serpentine (Serpentinite)
Serpentinite (complex silicate group including lizardite, chrysotile, and antigorite)
metamorphic
Raw Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite)
metamorphic
Prehnite
Prehnite - Ca2Al(AlSi3O10)(OH)2
mineral
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Yellow Jade (Nephrite or Jadeite)
Nephrite: Ca2(Mg, Fe)5Si8O22(OH)2; Jadeite: NaAlSi2O6
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Serpentinite
Serpentinite (composed primarily of minerals in the Serpentine group)
metamorphic
Grey Banded Agate
Chalcedony (Silicon Dioxide, SiO2)
mineral
Serpentine
Serpentinite (group of minerals including Antigorite, Lizardite, or Chrysotile) (Mg, Fe)3Si2O5(OH)4
metamorphic
Banded Agate
Cryptocrystalline Quartz (SiO2)
mineral
Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
mineral
Pink Tourmaline (Rubellite)
Elbaite (Tourmaline group) - Na(Li,Al)3Al6(BO3)3Si6O18(OH)4
mineral
Jadeite Jade
NaAlSi2O6 (Sodium Aluminum Silicate)
metamorphic
Peach Moonstone
Potassium Aluminum Silicate (KAlSi3O8); variety of Orthoclase Feldspar
mineral
Agate
Agate (Silicon Dioxide, SiO2)
mineral
Jadeite
Jadeite (NaAlSi2O6)
metamorphic
Agate
Cryptocrystalline Quartz (SiO2)
mineral
Amazonite
Potassium aluminum silicate (KAlSi3O8)
mineral
Breciated Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Mineral
Green Aventurine
Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
mineral
Agate (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Serpentinite
Serpentinite (composed primarily of minerals in the Serpentine group: Chrysotile, Lizardite, and Antigorite)
metamorphic
Jasper (Red and Yellow)
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Blue Dumortierite Quartz
AlAl6BSi3O18 (Dumortierite) within SiO2 (Quartz)
mineral
Galena
Lead(II) sulfide (PbS)
mineral
Mixed Tumbled Stones Collection
Mixed Silicates and Carbonates (Quartz, Amorphous Silica, Carbonates)
multiple
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Muscovite Mica (with Quartz matrix)
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral