From(the seller): YouYan.Co
Date: 2023/10
Bin Xiang
The familiar metal hafnium usually contains a considerable amount of zirconium as an impurity. Even the hafnium produced using chemical vapor deposition is usually difficult to avoid the presence of zirconium impurities. However, according to the seller, this crystal was prepared for special purposes, The zirconium content in it is very low. At the same time, it also has very beautiful crystals. It is really a rare and good collection. The weight of this samples is about 500 grams, a huge one, isn‘t it?
