Some of the best data I've collected came from ovoid, or outright spherical crystals. Naturally, on other occasions very similar looking crystals produced diffraction patterns similar to those of a Sony Walkman... which just goes to show that crystal habit is an unreliable indicator of crystal quality.
Artem - Cosmic Cats approve of this message On Tue, Dec 24, 2013 at 10:49 PM, Acoot Brett <acootbr...@yahoo.com> wrote: > Dear All, > > I am optimizing a crystal. In one of the optimizing conditions I find the > crystal is cubic-like shape (the crystal is not large, but absolutely not > the traditional "tiny crystal". The crystal has some kind of faces and > edges but not so sharp, and it is absolutely not round). But after 1 day > the crystal changed into sphere form (the "cubic" not obvious). > > Will you please introduce your experience on how to get the sharp face and > sharp edge crystal for my situation)? > > There is source says if the crystal grows too faster, the sharpness would > be lost. Will you please also let me know how to slow down the growth rate > of the crystal? > > Cheers, > > Acoot >