There already are green sand beaches, which are considered something of a tourist attraction. https://www.google.com/search?q=Green+Sand+Beach&client=firefox-b

There already are green sand beaches, which are considered something of a tourist attraction. https://www.google.com/search?q=Green+Sand+Beach&client=firefox-b-1-d&channel=tus&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjYz7GggavjAhXiUN8KHe8PCXIQ_AUIECgB&biw=1438&bih=748&dpr=1.25 https://www.google.com/search?q=Green+Sand+Beach&client=fire...