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.
Nonmetallic Luster. There are a number of different nonmetallic lusters. A. Vitreous. Also called glassy. Examples include quartz and tourmaline. B. Resinous. Minerals that look like resin (a little bit like the look of plastic). Examples include sulfur and sphalerite. C. Pearly. Minerals with a pearl-like, iridescent luster. Talc is a good example.