Ankinovichite Mineral Data

Ankinovichite Mineral Data

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General Ankinovichite Information

Chemical Formula:

(Ni,Zn)Al4(VO3)2(OH)12(H2O)2.5

Composition:

Molecular Weight = 594.56 gm

Aluminum 17.88 % Al 33.78 % Al₂O₃

Vanadium 15.68 % V 23.07 % V₂O₃

Zinc 3.41 % Zn 4.24 % ZnO

Iron 0.28 % Fe 0.36 % FeO

Copper 0.11 % Cu 0.13 % CuO

Silicon 0.33 % Si 0.71 % SiO₂

Nickel 5.63 % Ni 7.16 % NiO

Hydrogen 2.87 % H 25.62 % H₂O

Oxygen 53.82 % O

______ ______

100.00 % 95.08 % = TOTAL OXIDE

Empirical Formula:

Ni_0.57Zn_0.31Fe²⁺_0.03Cu_0.01Al_3.94Si_0.07VO3_1.83(OH)_12.11·2.4(H₂O)

Environment:

In vanadium-bearing schists.. Ni-dominant analogue of alvanite; structure determined.

IMA Status:

Approved IMA 2004 (Dana # Added)

Locality:

Kara-Tau ridge at Kurumsk, 15 km south-southeast of Aksumbe, Kazakhstan and (2) Kara-Chagyr mountain, on the east side of the Isfairamsai river, near Valakish, 6 km south of Uch-Kurgon Link to MinDat.org Location Data.

Name Origin:

Named for Ekaterina Alexandrovina Ankinovich (1911-1991) and her husband Stepan Gerasimovitch Ankinovich (1912-1985). Russian mineralogist and geologist.

Synonym:

IMA2002-063

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Ankinovichite Crystallography

Axial Ratios:

a:b:c =3.4765:1:1.7307

Cell Dimensions:

a = 17.8098, b = 5.1228, c = 8.8665, Z = 2; beta = 92.141° V = 808.38 Den(Calc)= 2.44

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/n

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

By Intensity(I/I_o): 7.83(1)(101), 8.89(1)(200), 1.481(0.8)(653),1.904(0.7)(621), 1.605(0.5)(623), 3.266(0.5)(501), 1.98(0.4)(820), 3.354(0.4)(012),

Physical Properties of Ankinovichite

Cleavage:

[010] Perfect

Color:

Colorless, White, Light green, Light blue.

Density:

2.48

Diaphaniety:

Transparent

Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

2.5-3 - Finger Nail-Calcite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Ankinovichite

Gladstone-Dale:

CI meas= -0.126 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.144 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2781,KPDmeas= 0.2737,KC= 0.2431

Optical Data:

Biaxial (+), a=1.653, b=1.677, g=1.706, bire=0.0530, 2V(Calc)=86, 2V(Meas)=86. Dispersion r < v strong.

Calculated Properties of Ankinovichite

Electron Density:

r_electron=2.48 gm/cc
note: r_{Ankinovichite}=2.48 gm/cc.

Fermion Index

Fermion Index = 0.0029
Boson Index = 0.9971

Photoelectric:

PE_{Ankinovichite}= 7.44 barns/electron
U=PE_{Ankinovichite} x r_electron= 18.46 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Ankinovichite is Not Radioactive

Ankinovichite Classification

Dana Class:

42.13.13.2 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.13)Dana Type

(42.13.13)Dana Group

42.13.13.1 Alvanite (Zn,Ni)Al4(VO3)2(OH)12·2(H2O) P 2₁/n 2/m

42.13.13.2 Ankinovichite ! (Ni,Zn)Al4(VO3)2(OH)12(H2O)2.5 P 2₁/n 2/m

Strunz Class:

IV/G.07-15 IV - Oxides

IV/G - Vanadiumoxides (with V4+/5+) Chain vanadates with [V2O6]2-

IV/G.07 - Navajoite-Metadelrioite series

IV/G.07-10 Navajoite V2O5·3(H2O) C 2/m 2/m

IV/G.07-15 Ankinovichite (Ni,Zn)Al4(VO3)2(OH)12(H2O)2.5 P 2₁/n 2/m

IV/G.07-20 Alvanite (Zn,Ni)Al4(VO3)2(OH)12·2(H2O) P 2₁/n 2/m

IV/G.07-30 Munirite NaVO3·(2-x)(H2O) P 2₁/a 2/m

IV/G.07-40 Metamunirite Na2[V2O6]orNaVO3 P nma 2/m 2/m 2/m

IV/G.07-45 Dickthomssenite! Mg(V2O6)·7(H2O) C 2/c 2/m

IV/G.07-48 Ansermetite! MnV2O6·4(H2O) C 2/m 2/m

IV/G.07-50 Rossite CaV2O6·4(H2O) P1 1

IV/G.07-60 Metarossite CaV2O6·2(H2O) P1 1

IV/G.07-70 Delrioite CaSrV2O6(OH)2·3(H2O) I/a or I2/a 2/m

IV/G.07-80 Metadelrioite CaSrV2O6(OH)2·(H2O) P1 1

Other Ankinovichite Information

References:

NAME( CanMin, 42:1903) PHYS. PROP.(CanMin, 42:1903) OPTIC PROP.(CanMin, 42:1903)

See Also:

Links to other databases for Ankinovichite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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

Ankinovichite

(Ni,Zn)Al4(VO3)2(OH)12(H2O)2.5
Dana No: 42.13.13.2 Strunz No: IV/G.07-15
Locality:

Notes: