You stack at least two layers of tiny squares that are set catty corner to each other. Your stack now has 8 single layer points. As the corners melt they pull in and make it round easier, and the glass is already 1/4 high so that is not an issue. I am assuming you mean like the bags of blobs or nuggets you get at the hobby stores.
If you are making jewelery with a coated glass like dicro you want the top layer of glass to be clear and put the coating in the middle of the two layers. I would place the squares with the corners together for this for this project to completely cover the coated surface. And make the clear cap a tiny bit bigger than the bottom piece of glass so the clear melts down over the edge nice and does not let any of the coating seep out. That way the coating is trapped in the glass blob and has a deep look to it.
The two layer thing is a volume control issue to learn right away. Once you understand it you can use it to your advantage. I think a great beginner project is to make many 1" squares then start stacking them. The first pile gets one square, The second gets 2 , the third 3, And so on. Now full fuse to 1465F and leave it for 10 minutes. Be sure to anneal. Now look and see how the glass has acted with the volume or height of glass per stack.
Enjoy!
Thanks Judy
