Itacolumite

• Itacolumite
  Mt. Itacolumi, Minas Gerais, Brazil
  
  People think that stones are hard. That is why in Japanese, stones are used in words and proverbs such as “Ishiatama (Stone-headed) [= hardheaded]” and “Ishibashi wo tataite wataru. (To hit the stone-made bridge before crossing) [= To act with the utmost caution]”.
  So people are surprised to see this Itacolumite bend.
  If you examine the texture of this stone, you will find the sand particles intertangled each other like jigsaw puzzle.
  Also you can see many spaces between the sand particles. It is because the substances that connected the sand particles had weathered away.
  Itacolumite bends because sand particles are loosely joined.