ʻO Spinel kahi mineral i haku ʻia me ka magnesium a me ka alumini oxide, no ka mea, aia ka magnesium, ka hao, ka zinc, ka manganese a me nā mea ʻē aʻe, hiki ke hoʻokaʻawale ʻia i nā ʻano like ʻole, e like me ka alumini spinel, iron spinel, zinc spinel, manganese spinel, chrome spinel a pela aku.