The cleavage surfaces of type I and type II diamonds

Publisher Website
Google Scholar
Abstract
The cleavage surfaces of 75 type I and 75 type II diamonds have been examined using microscopy and multiple-beam interferometry. The work confirms an earlier qualitative observation that the surface of a type II diamond exhibits a more regular cleavage pattern. There are in general, more cleavage lines on type I diamonds, and also a greater number of the so-called river systems. The results suggest that impurities within the lattice lead to a more broken substructure in the type I diamonds. It is also shown that birefringence and counting properties are not appreciably reflected in the cleavage patterns, and that very few type II diamonds show evidence of a laminated structure.

This publication has 18 references indexed in Scilit: