It is the rarer mineral of an isomorphous series formed with nenadkevichite. Some beautiful labuntsovite crystals were found during the '99 collecting season. Labuntsovite-Mn has been identified from MSH, more to follow .
Color is pale to deep orange.
Luster is vitreous to adamantine. Diaphaneity is transparent. 3 Streak is white. Associated Minerals include albite, amphibole group, analcime, biotite, calcite, catapleiite, chlorite group, donnayite, elpidite, eudialyte, fluorite, galena, microcline, natrolite, polylithionite, pyrite, pyroxene group and pyrrhotite.