Rastsveatevite is a rare mineral of the eudialyte group with the chemical formula Na27K8Ca12Fe3Zr6Si4[Si3O9]4[Si9O27]4(O,OH,H2O)6Cl2.

[3] It is only the third member of the group after andrianovite and davinciite with essential (site-dominating) potassium.

[2] Rastsvetaevite was originally found in hyperagpaitic (ultra-alkaline) pegmatite at Mt.

Rasvumchorr, Khibiny massif, Kola Peninsula, Russia.

Associated minerals are aegirine, nacaphite, nepheline, natrite, schcherbakovite, sodalite, villiaumite, and rasvumite.