The Washington Monument is constructed from marble, granite, and bluestone gneiss.
 The weight of the above ground portion of the monument is 44,208 long tons (49,513 short tons; 44,917 tonnes),  whereas its total weight, including the foundation below ground and any earth above it that is within its outer perimeter is 81,120 long tons (90,854 short tons; 82,422 tonnes)
 Twelve such courses, the internal ribs, the marble capstone, and the aluminum apex comprise the pyramidion

