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Hard Water - Water Quality

White sediment, typically caused by dissolved minerals like calcium and magnesium associated with water hardness, is visible in water at Tehatta, West Bengal, India, on October 10, 2024. These minerals often become visible when water is exposed to oxygen, boiled, frozen, or when it dries on surfaces. The white flakes are usually harmless calcium deposits, which precipitate as water interacts with oxygen. Home water filters are commonly used to remove these minerals, which can lead to the appearance of white flakes or deposits. (Photo by Soumyabrata Roy/NurPhoto)

Photo ID	#11654295
Date Taken	10 October 2024
Location	N/A
Photographer	Soumyabrata Roy/NurPhoto
Category	Human Interest
Copyright	© 2026 NurPhoto - Soumyabrata Roy/NurPhoto

White sediment dissolved minerals calcium magnesium water hardness Tehatta West Bengal India October 10 2024 visible in water oxygen exposure boiling freezing drying on surfaces harmless calcium deposits precipitation water interaction with oxygen home water filters mineral removal white flakes deposits Soumyabrata Roy NurPhoto water quality mineral visibility water treatment surface residue mineral precipitation household water mineral content water clarity water filtration mineral sediment environmental observation.