Stones That Absorb Water
- All stones are porous and allow water to penetrate them unless sealed to make them water resistant.Lot of different sea stones. White, black, brown, motley stones. image by wolandmaster from Fotolia.com
A stone is a porous material comprised of grains of sand that form into a solid mass. According to Bellstone, a stone and slate specialist, all stone absorbs water to varying degrees. For this reason, some stone varieties are better suited for specific functions, such as for use around a swimming pool or as flooring tile. Moreover, certain stone types absorb water less so than other stone types, rendering limited uses for them in and around the home. - Granite is a natural stone material used to make kitchen countertops and bathroom vanities. The stone is desired for its strength and durability as well as its beauty. Homeowners with granite countertops need to seal the stone to prevent it from absorbing water. The stone can crack and chip if it absorbs too much water. According to Granite Countertop Information Page, a general granite resource provider, homeowners can test their granite's seal to ensure it's adequate. They suggest spilling water on the countertop and letting it sit for up to 30 minutes before drying it up. When a dark spot appears upon removing the water, it's a sign that the granite needs resealing.
- Although marble is a fairly dense stone, it can still absorb water. Water left on the stone creates a dark spot as it's absorbed similarly to unsealed granite. The dark spot eventually fades as the water dries. For this reason, marble must be treated with a silicone or wax seal to guard against liquid absorption that can alter its appearance.
- Slade is a natural stone that is commonly used as a flooring material or as tiles for a bathroom. However, like granite, slate is porous and absorbs waters unless it's sealed. Applying a sealer helps protect the stone and prevents it from absorbing liquids that can stain and discolor it.
- Certain stones are made to absorb water. Synthetic water stones are manufactured to cut and polish metal. The stones are classified into three types based on their coarseness and overall grit. In most cases, users need to soak these stones in water prior to using them on metal or to sharpen tools. Soaking them in water enhances their performance and prevents them from weakening with use. Upon placing them in water, bubbles rise to the surface as the water is absorbed.
