Princeton University10 年
Spinel, part 1
Spinel, MgAl 2 O 4 (download cif), is a rare gemstone that was used to imitate rubies. The structure has face-centered cubic symmetry, and is a little heavy to understand. The general formula is AB 2 ...
Interesting Engineering on MSN1 个月
After diamonds, scientists create qubit centers in gemstone spinel
You may have heard of diamond qubits, but diamonds aren’t the only gemstones that can be used to store quantum information. A ...