The Golden delicious has pale green skin, usually without any red. It is more tart than sweet with a firm, but not crisp flesh. It's skin is medium in thickness and well attached to the flesh of the apple. I would rate the graininess at about 2, some graininess, but not too much.
Ginger ale method: Soak for 10 minutes in Ginger Ale. It works great and keeps the apple from turning brown overnight. This method is good for subtly flavored or tart apples that would be made nearly inedible by the addition of lemon juice.