Term: Ice structure Class:  
 vernacular   (0%)
Created 6 June 2017
Last modified 6 June 2017
Contributed by GCW Glossary


Definition: The arrangement of water molecules in an ice crystal. Under normal atmospheric temperatures and pressures between 0 and -100C, water molecules arrange themselves into an hexagonal crystalline structure called ice-Ih. When viewed along the principal c axis these molecules form spatial hexagonal rings lying above each other, each water molecule surrounded by four others, in a near tetrahedral arrangement.  AMSglossary