Kainotropite

Kainotropite is a rare vanadate mineral with the formula Cu₄FeO₂(V₂O₇)(VO₄). It contains trivalent iron. It is one of many fumarolic minerals discovered on the Tolbachik volcano. The name of its parental fumarole is "Yadovitaya", which means poisonous.^[2][3]

Kainotropite
General
Category	Vanadate
Formula	Cu4Fe3+O2(V2O7)(VO4)
IMA symbol	Ktr[1]
Crystal system	Orthorhombic
Crystal class	Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
Space group	Pnma
Unit cell	a = 14.14, b = 6.71 c = 11.42 [Å], β = 93.04° (approximated)
Identification
References	[2]

Relation to other minerals

Structure of kainotropite is unique. However, there are other minerals containing both copper and divanadate group, like engelhauptite and volborthite.^[4][5]

External links

• Kainotropite on Mindat: "Kainotropite: Kainotropite mineral information and data". Mindat.org. Retrieved 2016-03-13.