Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Salam and welcome to IslamSE the Q&A site about Islam. To learn more about our site and model consider taking the tour and checking our help center. As to your inquiry: Why should the sand be impure?
Like any library, Islam Stack Exchange offers great information, but does not offer personalized advice or legal verdicts, and does not take the place of seeking such advice from your Mufti, Imam, or other trustworthy Counselor.