Manganbelyankinite Mineral Data

Manganbelyankinite Mineral Data +

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General Manganbelyankinite Information

Chemical Formula:

(Mn,Ca)(Ti,Nb)5O12·9(H2O)

Composition:

Molecular Weight = 723.53 gm

Calcium 3.88 % Ca 5.43 % CaO

Titanium 27.79 % Ti 46.37 % TiO₂

Manganese 9.11 % Mn 11.77 % MnO

Niobium 10.27 % Nb 14.70 % Nb₂O₅

Hydrogen 2.51 % H 22.41 % H₂O

Oxygen 46.44 % O

______ ______

100.00 % 100.66 % = TOTAL OXIDE

Empirical Formula:

Mn²⁺_1.2Ca_0.7Ti_4.2Nb_0.8O₁₂·9(H₂O)

Environment:

In a pegmatite.

IMA Status:

Valid Species (Pre-IMA) 1957

Locality:

On mts., Kedykrverpakh and Punkaruaiv, Lovozero Massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.

Name Origin:

Presumably for its MANGANese content and relationship to belyankinite.

Manganbelyankinite Image

Images:

Manganbelyankinite

Comments: Brownish to blackish manganbelyankinite coatings on syenite rock.
Location: Punkurvaiv, Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Manganbelyankinite Crystallography

Crystal System:

Amorphous- No Crystals

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 1.692(0.4), 2.48(0.3), 3.21(0.2),2.89(0.2), 2.17(0.1), 1.88(0.1),

Physical Properties of Manganbelyankinite

Cleavage:

[???] Perfect

Color:

Brownish black, Pink brown.

Density:

2.4 - 2.5, Average = 2.45

Diaphaniety:

Translucent to Opaque

Habit:

Amorphous - No crystalline form or imitative shape.

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Habit:

Metamict - Mineral originally crystalline, now amorphous due to radiation damage.

Hardness:

2-2.5 - Gypsum-Finger Nail

Luster:

Vitreous - Greasy

Streak:

light brown

Optical Properties of Manganbelyankinite

Gladstone-Dale:

CI meas= 0.03 (Excellent) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.3224,KC= 0.3324

Optical Data:

Isotropic, n=1.78-1.8.

Calculated Properties of Manganbelyankinite

Electron Density:

r_electron=2.41 gm/cc
note: r_{Manganbelyankinite}=2.45 gm/cc.

Fermion Index

Fermion Index = 0.03621
Boson Index = 0.96379

Photoelectric:

PE_{Manganbelyankinite}= 22.16 barns/electron
U=PE_{Manganbelyankinite} x r_electron= 53.30 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Manganbelyankinite is Not Radioactive

Manganbelyankinite Classification

Dana Class:

8.7.8.2 (8)Multiple Oxides with Nb, Ta, and Ti

(8.7)Dana Type

(8.7.8)Dana Group

8.7.8.1 Belyankinite Ca1-2(Ti,Zr,Nb)5O12·9(H2O)(?) None

8.7.8.2 Manganbelyankinite (Mn,Ca)(Ti,Nb)5O12·9(H2O) None

8.7.8.3 Gerasimovskite (Mn,Ca)(Nb,Ti)5O12·9(H2O)(?) None

Strunz Class:

IV/D.06-20 IV - Oxides

IV/D - Oxides with metal : oxygen = 1:2 (MO2 and related compounds)

IV/D.06 - Belyankinite - Hochelagaite series

IV/D.06-10 Belyankinite Ca1-2(Ti,Zr,Nb)5O12·9(H2O)(?) None

IV/D.06-20 Manganbelyankinite (Mn,Ca)(Ti,Nb)5O12·9(H2O) None

IV/D.06-30 Gerasimovskite (Mn,Ca)(Nb,Ti)5O12·9(H2O)(?) None

IV/D.06-35 Ternovite! (Mg,Ca)Nb4O11-n(H2O)wheren~10 P 2/m,P 2,Pm Mono

IV/D.06-40 Franconite Na2Nb4O11·9(H2O) Unk Mono

IV/D.06-50 Hochelagaite (Ca,Na,Sr)Nb4O11·8(H2O) Unk Mono

Other Manganbelyankinite Information

References:

NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Manganbelyankinite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Print or Cut-and-Paste your Manganbelyankinite Specimen Label here :

Manganbelyankinite

(Mn,Ca)(Ti,Nb)5O12·9(H2O)
Dana No: 8.7.8.2 Strunz No: IV/D.06-20
Locality:

Notes: