Natural stone could be divided into two kind according to their content: silicic acid kind stone and calcareousness stone, to know this the key to choose the clean product.

silicic acid kind stone mainly consist of silicon dioxide or quartz fine grain. This kind of stone is durable, easy to clean, just use weak acid detergent could make it clean, silicic acid kind stone include granite, slate, sandstone, quartz stone, brown sandstone and blue stone,calcareousness stone mainly content is calcium carbonate, this kind of stone is sensitive to acid detergent, limestone mainly include marble, limestone and onyx.

The detergent suitable for silicic acid kind stone maybe not suitable for calcareousness stone,to distinguish silicic acid kind stone and calcareousness stone, a simple acid test could help you. What you need to prepare is a few drop of vinegar and eyedrop bottle. You could use the vinegar, if it is not eroded, then it is silicic acid kind stone, and if it is eroded, then it is calcareousness stone.

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