Radiocarbon Dating is used on organic objects only, so the fact that your whole example is based on inorganic rocks and radio carbon dating only suggests that you do not know with any detail or understanding the topic that you are discussing.
There are 2 calories in 1 cup of Unsweetened Iced Tea. Calorie breakdown: 0% fat, 97% carbs, 3% protein.
Source of Fluoride and Flavonoids. Drinking unsweetened iced tea also helps increase your fluoride intake and provides beneficial flavonoids. An 8-ounce portion of brewed black iced tea contains up to 0.5 milligrams of fluoride, and making your iced tea with fluoridated water can increase your fluoride intake further.