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.
Ramp up the cardio. Do aerobic exercises which get your heart pumping, burn calories quickly and facilitate fat loss all over the body, including your belly. You can't spot-burn belly fat, but it's usually the first to burn off when you exercise, regardless of body shape or size. 1  Time your miles. Walk at the same time each day and if you can run a mile a day. 2  Many women start gaining more weight in their belly as they age, especially after menopause. 3  The body fat distribution changes â less fat goes to your arms, legs and hips, and more goes to your midsection.