Which type of sharpening stone is lubricated with oil?

An Arkansas stone is a type of sharpening stone that is specifically designed to be lubricated with oil during the sharpening process. These stones are made from natural materials and are known for producing a fine edge on cutting instruments. The oil serves multiple purposes; it helps to reduce friction, prevents the metal filings from clogging the pores of the stone, and provides a smoother surface for sharpening.

In contrast, other options such as ceramic stones typically do not require lubrication; they are often used dry or may use water instead. India stones, which are man-made and generally consist of aluminum oxide, can be used with either oil or water, but they are commonly associated with oil as well. Lastly, a stainless steel diamond card is a tool that uses diamond abrasives on a metallic surface, highlighting that it does not need oil for sharpening. Thus, the distinctive characteristic of the Arkansas stone being specifically known for oil lubrication makes it the correct choice in this context.