Greasy Marks on Slate Stone Countertop
Its name was given to slate for its ability to shale, i.e., split into thin plates. This property acquired by this stone due to a large number of hydromica, which are located in its thickness. Slate consists of sedimentary rocks, mica and sometimes quartzite.
Due to the presence of various clay materials that mica plates are fastened, a greater hardness of shale is ensured. Most often, the shale is black, gray and green.
Slate is rarely polished to gloss (because it is almost impossible to do so), and more often honed. The stone is quite problematic for designers – it breaks easily, usually in wet environment.
Therefore, slate is not recommended for use in bathroom, shower or outdoor facades. For slate, it is recommended to use protective impregnation with stone strengthening effect.
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