Spinel
Spinel ( ) is the magnesium/aluminium member of the larger spinel group of minerals. It has the formula MgAl
2O
4 in the cubic crystal system. Its name comes from the Latin word spinella, which means spine in reference to its pointed crystals.
Spinel: Steven Universe
Spinel Steven Universe
This is Steven universe's spinel, The one with the upside down heart. But she is happy, not...