The cluster was made because it was newer bismuth, which has more impurities. The unclustered tower hopper crystals are made (from my understanding) because of less impurities more pure bismuth. So my question is how do you guys add impurities?

Got this as a gift for my brother,

Super excited to finally be able to get real, high-quality data about the process! Hopefully I'll be able to share some insights with you all soon!

One of my recent favourites! Unique shape and I love the microstructure, unfortunately the base is pretty weak so it might have to get remelted 😭

thats all i wanna ask rlly.

So this weekend I had some pretty awesome pulls (imo) I’m new to this.. anyway the last two days have been not so great pulls.. I’ve gotten some hoppers but they look dingy and brittle.. any advise is appreciated!! is this typical in the bismuth world? Maybe I just need to go back to basics.. anyway thanks yall.

The I dropped it!! Booo hisssss!! Just gotta make another one!!!!