Three new metal borates containing d10 cations, namely, Li4PbZn3B12O24, Na2Cd2B8O15, and K2Sr4ZnB10O19(CO3)2, were synthesized using the flux method. K2Sr4ZnB10O19(CO3)2 is the first Zn-containing borate carbonate and has an unprecedented fundamental building block, [B10O22]. Furthermore, experimental and first-principles theoretical studies were performed.