Goldmanite

Al_0.58Ca₃Cr_0.48O₁₂Si₃V_0.94

Uher, P.Kovacik, M.Kubis, M.Shtukenberg, A.Ozdin, D.

American Mineralogist (2008) 93, 63-73

a=12.001Å   b=12.001Å   c=12.001Å

α=90°   β=90°   γ=90°