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.
1 Sweetened Iced Tea: Hand selected Tea leaves brewed to fine flavor sweetened with all natural sugar (70 calories) 2  Extra Sweet Iced Tea: Reminiscent of southern sweet tea, all natural sugar is the highlight of this drink.  Iced Tea with Raspberry: bold tart berry flavor meets smooth black tea (80 calories)