Alois von Beck Widmanstätten

Count Alois von Beckh Widmanstätten (13 July 1754 10 June 1849) was a printer and mineralogist from the Holy Roman Empire and then the Austrian Empire. His name is sometimes given as Alois von Beckh-Widmannstätten or Aloys Joseph Franz Xaver Beck Edler von Widmanstätten. He is known for recognizing a unique pattern of cross-hatching lines on the surface of iron-rich meteorites, now called Widmanstätten patterns, resulting from the cooling and crystallization of interstitial minerals. A crater on the Moon is named after Widmanstätten.