Can I wash bluestone at the intersection of Hutong?

Of course. Bluestone is an important part of traditional geomantic omen in China, among which bluestone taboo in geomantic omen is the most common. Bluestone is often considered to have the function of preventing disasters and ward off evil spirits, and has a good feng shui effect. Therefore, bluestone is often used as feng shui decoration in family decoration, or as a material for door frames and partitions.