In shades of black, brown, gray and cream Picasso jasper (Picasso marble or Picasso stone) shows a beautiful, distinct pattern due to the heat and pressure from deep within the earth. The striking patterns and lines give it a cubist character. That is why it is named after Pablo Picasso. It is said to attract like minded souls and to help renew lost friendships. Picasso Jasper is the birthstone of the Leo.