The proportion of silver in these alloys is stated in terms of fineness, which means parts of silver per thousand of the alloy. Sterling silver contains 92.5 percent of silver and 7.5 percent of another metal, usually copper; i.e., it has a fineness of 925. Jewelry silver is an alloy containing 80 percent silver and 20 percent copper (800 fine). The yellow gold that is used in jewelry is composed of 53 percent gold, 25 percent silver, and 22 percent copper.
Kale, mustard greens, turnip greens, watercress, chard and spinach (as well as most other leafy greens) are all great vitamin C foods to add to your diet. While they all provide different amounts of this essential nutrient, they are all very healthy for you.
The richest sources of vitamin C are sweet peppers, black currants, broccoli, Brussels sprouts, kale and turnip greens. Vitamin C is heat sensitive, so the longer you cook veggies, the more the vitamin decreases; raw vegetables contain the most. The faster the cooking method the better! Other prime sources for vitamin C include papayas and mangos, pineapple, grapefruit and tangerines, kiwi, cantaloupe, honeydew and watermelon. Other vegetables high in vitamin C are okra, winter and summer squash, cabbage, dark leafy greens, cauliflower, peas, sweet potatoes, and asparagus.