Blue Sapphire (Tumbled/Polished)
Corundum (Al2O3)
Category
Browse metamorphic or igneous specimens identified by the Rock Identifier community.
Blue Sapphire (Tumbled/Polished)
Corundum (Al2O3)
Sodalite
Sodalite (Sodium Aluminum Silicate Chloride) - Na8(Al6Si6O24)Cl2
Yellow Quartz (Citrine appearance)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky/Bull Quartz)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Chalcopyrite
Chalcopyrite (CuFeS2)
Orthoclase Feldspar
Potassium aluminum silicate (KAlSi3O8)
Quartz (Milky/Clear)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Blue Apatite
Chlorapatite / Fluorapatite (Ca5(PO4)3(F,Cl,OH))
Quartz (Milky or Cloudy Quartz)
Silicon Dioxide (SiO2)
Ruby
Corundum (Aluminum Oxide with Chromium), Al2O3:Cr
Orthoclase Feldspar
Orthoclase (KAlSi₃O₈)
Yellow Quartz (or Citrine Quartz)
Silicon Dioxide (SiO2)
Gold Ore in Matrix
Native Gold (Au) in Quartz/Limonite host rock
Milky Quartz
Quartz (SiO2)
Quartz / Rock Crystal
Silicon Dioxide (SiO2)
Citrine (Quartz variant)
SiO2 (Silicon Dioxide)
Milky Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Pink Sapphire
Corundum (Al2O3) with Chromium/Iron/Titanium trace impurities
Pyrite
Iron Sulfide (FeS2)
Orthoclase Feldspar (Potassium Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky/Chalcedony variety)
Silicon Dioxide (SiO2)
Quartz (Milky or Smoky Quartz)
Quartz (Silicon Dioxide, SiO2)
Pyrite (Iron Pyrites)
Iron Sulfide (FeS2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Yellow Quartz (Citrine/Gold Quartz)
Silicon Dioxide (SiO2)
Serpentine
Serpentine Group (primarily Antigorite or Lizardite), Mg3Si2O5(OH)4
Gneiss (specifically a weathered or stream-worn specimen)
Gneiss (Foliated Metamorphic Rock)