There is a fantastic review which explains nicely the theory behind growing big single crystals and also describes many techniques. Basically, Rate of growth > rate of nucleation. Simple as that.

I have attached the review, enjoy reading it and then go grow some monster single crystals!

Http://www.southampton.ac.uk/xray/links/crystalgrowth/grow1.htm , if doesn't work one technique, try another.

There is a fantastic review which explains nicely the theory behind growing big single crystals and also describes many techniques. Basically, Rate of growth > rate of nucleation. Simple as that.

I have attached the review, enjoy reading it and then go grow some monster single crystals!

Keep the solution as saturated as possible, add the seed material (a small spec.) and allow the crystals to grow without disturbing.

You have to leave the crystals to set overnight in a cool place.

Use the minimum amount of the appropriate solvent ( heat at boiling point), when all the solid is dissolved, leave it to cool to rt wiyhout disturbing until appearance of first crystals after which you can keep it in a cool place.