Confidence votes 68.2K. Rockhound. Quartz is used in the making of sandpaper, optics, glass, liquid filters, circuit boards, computer components, cement, mortar, and jewelry. Quartz crystals are also piezoelectric meaning when an electrical current passes through them they vibrate a small amount.ockhound. Quartz is used in the making of sandpaper, optics, glass, liquid filters, circuit boards, computer components, cement, mortar, and jewelry.
So just how much fiber do you need? The national fiber recommendations are 30 to 38 grams a day for men and 25 grams a day for women between 18 and 50 years old, and 21 grams a day if a woman is 51 and older. Another general guideline is to get 14 grams of fiber for every 1,000 calories in your diet.
It's recommended that women get at least 25 grams of fiber per day on a 2,000 calorie diet -- or to be more precise, 14 grams of fiber per 1,000 calories consumed. Men are recommended to get 38 grams. However, the average American only gets about 15 grams daily. Twenty-five grams is actually at the low end of what your optimal fiber intake, so there's no reason not to aim higher. We humans actually evolved eating more than 100 grams of fiber a day, largely from wild greens. So back to that apple: How does an apple measure up in terms of fiber? Eating just one apple a day (skin on) will give you an average of 4.4 grams of fiber, about one-fifth of your daily need. And apples don't have just any old fiber, they are a rich source of a particularly powerful kind called pectin.