An aspirator is a small suction tool used to extract secretions, such as fluids or mucus, from a cavity.One of the most common such tools used in medical treatments is the nasal aspirator. As the name indicates, it is used to relieve nasal passages that are blocked due to the buildup of mucus.Accumulation of mucus in the nose is a very common occurrence, especially in infants and young children.ne of the most common such tools used in medical treatments is the nasal aspirator. As the name indicates, it is used to relieve nasal passages that are blocked due to the buildup of mucus. Accumulation of mucus in the nose is a very common occurrence, especially in infants and young children.
Lazurite is the essential ingredient of lapis lazuli and is the mineral that gives it the blue color. The best quality material contains less calcite and pyrite. Lazurite is a sodium, calcium, aluminosilicate mineral that contains sulfur: the color is due to a charge transfer between sulfur atoms.azurite is the essential ingredient of lapis lazuli and is the mineral that gives it the blue color. The best quality material contains less calcite and pyrite. Lazurite is a sodium, calcium, aluminosilicate mineral that contains sulfur: the color is due to a charge transfer between sulfur atoms.
Lapis lazuli. Lapis-lazuli was known in ancient times and was highly prized. The earliest published use of the name lapis-lazuli appears to be from 1636 by Anselmus Boetus de Boodt in Gemmarum et Lapidum Historia. page 273. The name is said to be derived from the Latin 'Lapis' and the persian 'Lazhward', meaning Blue. The name should be pronounced 'Lap-is Laz-u-lee'.