Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Category
Browse metamorphic or igneous (context dependent) specimens identified by the Rock Identifier community.
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Corundum (Pink Sapphire / Ruby)
Al2O3 (Aluminum Oxide)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Labradorite
(Ca,Na)(Al,Si)4O8
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Aventurine
Quartz (SiO2) with inclusions of Fuchsite
Smoky Quartz
Silicon Dioxide (SiO2)
Calcite
Calcium Carbonate (CaCO3)
Sapphire (Blue)
Corundum (Al2O3)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz with Hematite/Limonite staining
Silicon Dioxide (SiO2)
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F
Moonstone (Blue Flash)
Potassium Aluminum Silicate (KAlSi3O8), a variety of Orthoclase Feldspar
Aventurine
Quartz with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
Quartz (Milk/Citrine variety)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2) with iron impurities
Orthoclase Feldspar (Twinning Specimen)
Orthoclase (KAlSi3O8)
Corundum (variety Ruby/Sapphire)
Aluminum Oxide (Al2O3)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Magnetite (likely in Hematite or Ironstone)
Magnetite (Fe3O4)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Rainbow Moonstone
White Labradorite (formula: (Na,Ca)(Al,Si)4O8)
Milky Quartz
Silicon Dioxide (SiO2)
Black Tourmaline (Schorl)
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Garnet
Almandine (Fe3Al2(SiO4)3)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Grain)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz in Matrix
Silicon Dioxide (SiO2)
Amethyst and Ruby in Zoisite
Silicon Dioxide (SiO2) and Anyolite (Zoisite-Hornblende-Ruby mix)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Pyrite
Iron Sulfide (FeS2)