The open encyclopedia of minerals
GlossaryCite the database
Mineralogist.org
Minerals A–ZSearchCollectionsBrowse by PropertyIdentify a SpecimenCompare MineralsLocalities MapGlossaryContribute Search the Database →
Silicate

Manaevite-(Ce)

Ca₁₁(Ce,H₂O,Ca)₈Mg(Al,Fe)₄(Mg,Ti,Fe³⁺)₈[Si₂O₇]₄[(SiO₄)₈(H₄O₄)₂](OH)₉
Hardness4.5
Crystal systemTetragonal
ClassSilicate
←PrevMammothiteNextManaksite→

Manaevite-(Ce)

Manaevite-(Ce) is an IMA-recognized mineral species in the silicate class, with the chemical formula Ca₁₁(Ce,H₂O,Ca)₈Mg(Al,Fe)₄(Mg,Ti,Fe³⁺)₈[Si₂O₇]₄[(SiO₄)₈(H₄O₄)₂](OH)₉.

It crystallizes in the tetragonal crystal system (space group P4/nnc). It is a member of the Vesuvianite structural group.

Key properties: Mohs hardness 4.5; specific gravity 3.8; Brownish orange streak; Vitreous to greasy luster; optically uniaxial.

IMA symbol Mv-Ce, IMA status: approved, named in 2018.

Found in skarn-like metasomite in a phlogopite deposit in an alkaline-ultramafic massif.

It is found associated with Wollastonite, monticellite, thomsonite-Ca, tobermorite, strontianite, sphalerite, fluorapatite/hydroxylapatite, pectolite.

The mineral was named to honor Nikolay Mikhailovich Manaev (1936-2012), former Chief Geologist, Kovdorslyuda Mining and Dressing Company, for his contribution to the geology, mineralogy.

Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet. Browse more M minerals or help write this entry.