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.
14. While not as colorful as some of our other foods high in vitamin C, cauliflower holds its own with this essential nutrient. Just one cup of cauliflower will give you approximately 46 mg, not to mention plenty of vitamin K, folate and dietary fiber.
Foods Rich in Bioflavonoids. Fresh fruits and vegetables are generally the top choices for getting plenty of bioflavonoids in a diet. Here are some of the most popular ways to get the most of these helpful nutritional elements. Lemons and limes, as well as peaches, nectarines and other fruits all contain vitamin C and bioflavonoid superoxidants. 2  Broccoli-This green vegetable has a lot of vitamin C, as well as some other essential vitamins for a healthy diet. 3  As with other foods, use broccoli raw for best results.