...attention, the name being derived from the Greek 'A&i/^as, ie incapable of being crushed or subdued For the comparison of hardness in different degrees, mineralogists...handsome sum by purchasing a large flawed diamond from Rundall and Bridge at a low price, and subsequently splitting it into smaller sound and valuable stones...

...example, split or cleave with peculiar facility in certain definite directions, while they ой'ег considerable resistance to fracture in all others....price, and subsequently splitting it into smaller sound адd valuable stones ; the principle of the operation not being then generally known. Another nse...

...he makes on the edge of the stone, precisely in that spot, a slight nick with another diamond. H e then places a small knife in that nick, gives it a...whole range of mineralogy. It is reported that Dr. Wouaston, celebntedras almost the originator of the science of crystallography, once made a handsome...

...cleaves in two, directly through the flaw. This operation, in daily practice in the Amsterdam diamond works, is one of the most elegant and instructive...handsome sum by purchasing a large flawed diamond, at a low price, and subsequently splitting it into smaller sound and valuable stones, the principle...

...cleaves in two, directly through the flaw. This operation, in daily practice in the Amsterdam diamond works, is one of the most elegant and instructive...handsome sum by purchasing a large flawed diamond, at a low price, and subsequently splitting it into smaller sound and valuable stones, the principle...

...cleaves in two, directly through the flaw. This operation, in daily practice in the Amsterdam diamond works, is one of the most elegant and instructive...Wollaston, celebrated as almost the originator of the'science of crystallography, once made a handsome sum by purchasing a large flawed diamond, at a...

...cleaves in two, directly through the flaw. This operation, in daily practice in the Amsterdam diamond works, is one of the most elegant and instructive...the whole range of mineralogy. It is reported that L)r. Wollaston, celebrated as almost the originator of the science of crystallography, once made a...

...cleaves in two, directly through the flaw. This operation, in daily practice in tho Amsterdam diamond works, is one of the most elegant and instructive...handsome sum by purchasing a large flawed diamond, at a low price, and subsequently splitting it into smaller sound and valuable stones, the principle...