Tlapallite

IMA formula: (Ca,Pb)₃CaCu₆O₂[Te⁴⁺₃Te⁶⁺O₁₂]₂(Te⁴⁺O₃)₂(SO₄)₂·3H₂O

Crystallography: Trigonal. P321. a = 9.1219(17) Å, c = 11.9320(9) Å. Z = 2.