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.
Luster. â¢. luster. the way in which a mineral reflects light. â¢ A mineral is said to have a metallic luster if the mineral. reflects light as a polished metal does. â¢ All other minerals have nonmetallic luster.