Chris, I looked up the two types of sugar you asked about as it made me curious too. Did a google search on 'turbanado sugar and muscovado sugar' and went with the wikipedia result..
Turbinado sugar (popular brand name(s) include Sugar in the Raw) is a type of sugar cane extract. It is made by steaming unrefined raw sugar.
Turbinado sugar is similar in appearance to brown sugar but paler, and in general the two can be exchanged freely in recipes.
Related types of raw sugar include Muscovado and Demerara (sugar).
Muscovado is a type of unrefined sugar with a strong molasses flavour. It is also known as Barbados or moist sugar. It is very dark brown in color, and slightly coarser and stickier than most brown sugars. Unlike most brown sugars, which are composed of refined white sugar with molasses added, muscovado takes its flavor and color from the sugar cane juice it is made from. It offers good resistance to high temperatures and has a reasonably good shelf life. The unrefined sugar goes well with coffee and other beverages, and was one of the most prominent export commodities of the Philippines in the 1800s.
Related types of raw sugars include Jaggery, Demerara (sugar), and Turbinado sugar.
Hope this helps clear it up
Joe