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: A mineralâs luster is the overall sheen of its surface â it may have the sheen of polished metal, or that of an unpolished metal that is pitted by weathering â or it may have the sheen of glass, or look dull or earthy, etc.