Milky Quartz
Silicon Dioxide (SiO2)
Category
Browse metamorphic mineral specimens identified by the Rock Identifier community.
Milky Quartz
Silicon Dioxide (SiO2)
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Smoky Quartz
Silicon Dioxide (SiO2)
Feldspar (specifically Orthoclase or Plagioclase)
Potassium Aluminum Silicate (KAlSi3O8) or Sodium/Calcium Aluminum Silicate
Agate
Agatized Chalcedony (SiO2)
Banded Agate (Carnelian variety)
Cryptocrystalline Quartz (SiO2)
Citrine
Citrine (Silicon Dioxide, SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Citrine
Silicon Dioxide (SiO2) with iron impurities
Sunstone
Plagioclase Feldspar ((Ca,Na)(Al,Si)4O8)
Yellow Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz with Calcite/Quartz Veining
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Rough Sapphire (Corundum)
Corundum (Al2O3)
Quartz / Milky Quartz
Silicon Dioxide (SiO2)
Black Onyx
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Specular Hematite
Specularite (Iron Oxide, Fe2O3)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Pyrite in Quartz
Iron Disulfide (FeS2) in Silicon Dioxide (SiO2)
Dyed Agate
SiO2 (Silicon Dioxide)
Labradorite (likely)
(Ca,Na)(Al,Si)4O8
Milky Quartz
Silicon Dioxide (SiO2)
Ruby (Corundum)
Aluminium oxide (Al2O3) with Chromium traces
Hematite Nodule
Hematite (Fe2O3)
Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
Banded Agate
Agate (Cryptocrystalline variety of Quartz, SiO2)
Tiger's Eye
Silicon dioxide (SiO2) - Pseudomorph after crocidolite
Milky Quartz
Silicon Dioxide (SiO2)
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Potassium Feldspar
Orthoclase (KAlSi3O8)
Clear Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(F,OH)2
Sodalite and Calcite
Na8(Al6Si6O24)Cl2 (Sodalite) and CaCO3 (Calcite)
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
Quartz (Yellow/Citrine variety)
Crystalline Silicon Dioxide (SiO2)
Pyrite (locally known as Fool's Gold)
Iron Sulfide (FeS2)
Clear Quartz
Silicon Dioxide (SiO2)