Absolutely brilliant! On a side note, I must wonder about the semiconductor properties of these and other crystals -- could they be made into transistors or IC

Absolutely brilliant! On a side note, I must wonder about the semiconductor properties of these and other crystals -- could they be made into transistors or IC's like Silicon is? Could they have any potential future use in 3D printed electronics? Well, I don't know what the answers to those questions are, or will be -- but it's something I like to think about... Anyway, the crystals are absolutely beautiful! Great article!