Robuta

https://www.nist.gov/publications/crystal-structures-gaylussite-cana2co3-sub-2-5h2o-and-pirssonite-cana-sub-2co3-sub-2 The crystal structures of gaylussite, CaNa2(CO3) sub 2 . 5H2O and pirssonite, CaNa sub 2(CO3) sub 2...