Limestone is a sedimentary rock composed primarily of calcium carbonate (CaCO 3) in the form of the mineral calcite. It most commonly forms in clear, warm, shallow marine waters. It is usually an organic sedimentary rock that forms from the accumulation of shell, coral, algal and fecal debris.imestone is by definition a rock that contains at least 50% calcium carbonate in the form of calcite by weight. All limestones contain at least a few percent other materials. These can be small particles of quartz, feldspar, clay minerals, pyrite, siderite and other minerals.
1 To lose belly fat fast, you should try doing several different types of yoga for exercise and stress reduction. 2  Flow yoga burns fat while reducing stress. 3  If you choose to try meditation, it can also help you sleep.
Exercise to Burn Belly Fat. The best way to get rid of belly fat is a combination of strength training and cardio. The cardio will help burn fat from all over your body, including your belly, while the strength training will help you build more muscle, which burns more calories at rest than fat does. For weight loss, aim to fit in at least 300 minutes of cardio per week and at least two strength-training sessions.