1 Riband agate (also called ribbon agate) - agate with relatively broad bands. 2  Ring agate-agate exhibiting concentric color bands -- cf. 3  eye agate. 4  In addition, however, the term ring agate is frequently used in the marketplace to refer to any agate that is set in any ring (finger, ear, etc.).
Calories in black grapes There are: 3 calories per average black/red/purple grape19-20 calories in 1 oz or 28g of black/red/purple grapes34 calories.
According to Medical News Today, 1 cup of green grapes, or about 32 grapes, contains 104 calories, 1.09 grams of protein, 0.24 grams of fat and 1.4 grams of fiber. It also contains 4.8 milligrams of vitamin C, 10 micrograms of vitamin A, 288 milligrams of potassium, 0.54 milligrams of iron and 3 micrograms of folate.