Yellow Sapphire
Corundum (Al2O3)
gemstone
Category
Igneous, Sedimentary, And Metamorphic
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Yellow Sapphire
Corundum (Al2O3)
gemstone
K-Feldspar (Microcline / Orthoclase)
Potassium Feldspar (KAlSi3O8)
mineral
Ruby
Corundum (Al2O3)
gemstone
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Potassium Feldspar (Orthoclase / Microcline)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
White Quartz Pebble
Silicon Dioxide (SiO2) - Quartz
mineral
Quartz Crystal Fragment
Silicon Dioxide (SiO2)
mineral
Raw Garnet Fragment
Nesosilicate Group (e.g., Almandine, Fe3Al2(SiO4)3)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Blue Quartz (Dumortierite Quartz)
Silicon Dioxide (SiO2) with Dumortierite inclusions (Al7BO3(SiO4)3O3)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2) with Limonite/Goethite
mineral
Chalcopyrite
CuFeS2
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Mixed Quartz and Aventurine Chips
Silicon Dioxide (SiO2) with various inclusions
mineral
Ruby
Corundum (Aluminum Oxide, Al2O3)
gemstone
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz in Siltstone or Feldspar
Silicon Dioxide (SiO2)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Quartz Vein Rock
Silicon Dioxide (SiO2)
mineral
Sunstone
Aventurine Feldspar (Plagioclase or Oligoclase)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Peach Moonstone
Orthoclase (Potassium Aluminum Silicate, KAlSi3O8)
mineral
Plagioclase Feldspar
Plagioclase (NaAlSi3O8 - CaAl2Si2O8)
mineral
Quartz Vein / Milky Quartz
Silicon Dioxide (SiO2)
mineral
Rutilated Quartz
Rutile in Quartz (SiO2 with TiO2 inclusions)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Moonstone (Tumbled)
Potassium Aluminum Silicate (KAlSi3O8) with inclusions of Albite
mineral
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
mineral
Rutilated Quartz
Quartz with Rutile inclusions (SiO2 with TiO2)
mineral
Smoky Quartz (Polished)
Silicon Dioxide (SiO2)
mineral
Feldspar (likely Amazonite or Plagioclase)
Potassium Aluminum Silicate (KAlSi3O8) or Sodium/Calcium Aluminum Silicate
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
Blue Quartz (Aventurine)
Silicon Dioxide (SiO2) with inclusions of crocidolite or dumortierite
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Garnet
Garnet Group (Silicate Minerals)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral