Let's review. An ephelis, or freckle, is a type of macule, which is a small (up to 1cm in diameter), circumscribed, flat, and thus nonpalpable change in the pigmentation of the skin. By nonpalpable, I mean you can't feel it. Or more specifically, you can't feel any difference between it and the surrounding 'normal' skin.
The troy ounce is the standard silver price that you see on the t.v. 1 troy ounce = 31.1034768 grams or 1.09714 U.S. Ounces. It is usually just referred to as an oz.
In 2001 one troy ounce of silver would have cost you around $4.37 but in 2002 the world was facing an economic slowdown and silver prices started to bounce back. The price of a troy ounce of silver rose in 2003 and the prices have been climbing ever since. In 2010, investors were clamoring to buy gold but one year later the same investors already wanted to buy silver.