A: Fiction. Antibiotics used in animals are the cause of major human drug resistant diseases. Myth: âAnimal antibiotics kill more people than breast and prostate cancerâ screamed a blogger in the wake of an AP story on antibiotics used to keep food animals healthy.
Mineral Luster. Luster is a description of the way a mineral surface looks when light reflects off of the surface. Luster has two categories, metallic and nonmetallic.
  The luster of a mineral is the way its surface reflects light. Most terms used to describe luster are self-explanatory: metallic, earthy, waxy, greasy, vitreous (glassy) â¦ , adamantine (or brilliant, as in a faceted diamond).etallic luster is a mineral description, referring the interaction of light with the crystal surface, in this case, the look of shiny metal. Simply, the shininess of a metal â¦ . 34 people found this useful.