Is boron amorphous or crystalline?

Is boron amorphous or crystalline? Boron can be prepared in a number of crystalline as well as amorphous types. The widely known forms of formation are α& alpha;-rhombohedral (β& alpha;-R), & beta;-rhombohedral(& beta; -R )and also & beta;- tetragonal(& beta;-T ). In grandfather clauses, boron can also be synthesized in the form of α& alpha;-tetragonal(&…