Removing Calcium Deposits From Granite
Calcium deposits are a particularly big problem in areas with hard water. Hard water contains minute amounts of calcium and other minerals. When water is left to evaporate on granite's surface, it leaves some of that calcium behind in deposits. These white spots are especially easy to see on dark granite surfaces. Luckily, even heavy calcium deposits are easy to remove with a little elbow grease.
Moisten the calcium deposits and surrounding inch or so of granite with soapy water (1 tbsp. per quart) or the cleaner recommended by the company that installed your granite.
Scrub the calcium deposits with the steel wool. Use light to medium pressure to scrub. Only scrub the calcium deposits. Keep the area moist with the solution you used in Step 1. Stop scrubbing as soon as the calcium deposits appear gone.
Wipe the area free of cleaning solution and calcium deposits with a wet sponge.
Examine the spot. If there are any calcium deposits remaining, repeat Steps 1 through 3. Never scrub the calcium deposits without first applying a cleaning solution to lubricate the spot.
Buff the spot dry with a clean cloth.
Things You Will Need
- 0000 grade steel wool