Turanite Mineral Data

Turanite Mineral Data +

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General Turanite Information

Chemical Formula:

Cu5(VO4)2(OH)4

Composition:

Molecular Weight = 615.09 gm

Vanadium 16.56 % V 29.57 % V₂O₅

Copper 51.35 % Cu 64.27 % CuO

Hydrogen 0.67 % H 5.97 % H₂O

Oxygen 31.42 % O

______ ______

100.00 % 99.82 % = TOTAL OXIDE

Empirical Formula:

Cu_4.97(VO₄)₂(OH)_4.08

Environment:

Found with V and U minerals in cavities in barite from a limestone.

IMA Status:

Valid Species (Pre-IMA) 1909

Locality:

Tyuya Nuyun, Ferghana, Turan Region, Uzbekistan. Link to MinDat.org Location Data.

Name Origin:

Named from the locality.

Turanite Image

Images:

Turanite

Comments: The holotype specimen of botryodal, olive green turanite (#3578) in a cavite in white barite from the collection of the Fersman Mineralogical Museum (Moscow, Russia). (CanMin, v 42, p732).
Location: Tyuya-Muyun Ra-U deposit, the Alai Ridge foothills, Osh district, Kyrgyzstan. Scale: Specimen size 4.5 x 7.5 cm.
© N.A. Pekova

Images:

Turanite

Comments: SEM image of turanite crystals (a) parallel intergrown crystals.
Location: Tyuya-Muyun Ra-U deposit, the Alai Ridge foothills, Osh district, Kyrgyzstan. Scale: See ImaGE.
© Canadian Mineralogist

Turanite Crystallography

Axial Ratios:

a:b:c =0.8581:1:1.0911

Cell Dimensions:

a = 5.3834, b = 6.2736, c = 6.8454, Z = 1; alpha = 86.169°, beta = 91.681°, gamma = 92.425° V = 230.37 Den(Calc)= 4.43

Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 4.96(1), 7.25(0.8), 2.56(0.6),2.7(0.4), 1.97(0.3), 2.11(0.3), 2.29(0.3), 2.47(0.3),

Crystal Structure:

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Sokolova E V , Hawthorne F C , Karpenko V V , Agakhanov A A , Pautov L A , The Canadian Mineralogist , 42 (2004) p.731-739, Turanite, Cu5(VO4)2(OH)4, from the Tyuya-Muyun radium-uranium deposit,, Osh Region, Kyrgyzstan: A new structure for an old mineral, Locality: Osh Region, Kyrgyzstan

Physical Properties of Turanite

Color:

Olive green.

Diaphaniety:

Translucent

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)

Habit:

Reniform - "Kidney like" in shape (e.g.. hematite).

Hardness:

5 - Apatite

Optical Properties of Turanite

Gladstone-Dale:

CI calc= 0.009 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.228,KC= 0.2301

Optical Data:

Biaxial (-), a=2, b=2.01, g=2.02, bire=0.0200

Pleochroism (x):

brown.

Pleochroism (y):

brown.

Pleochroism (z):

green.

Calculated Properties of Turanite

Electron Density:

r_electron=4.19 gm/cc
note: r_Turanite=4.43 gm/cc.

Fermion Index

Fermion Index = 0.00056
Boson Index = 0.99944

Photoelectric:

PE_Turanite= 26.09 barns/electron
U=PE_Turanite x r_electron= 109.31 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Turanite is Not Radioactive

Turanite Classification

Dana Class:

41.4.4.1 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen

(41.4)where (A B)5 (XO4)2 Zq

(41.4.4)Dana Group

41.4.4.1 Turanite Cu5(VO4)2(OH)4 P1 1

Strunz Class:

VII/B.11-60 VII - Phosphates, Arsenates and Vanadates

VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O,OH, cations of medium size: Mg, Mn, Fe, Cu, Zn, Pseudomalachite group and related compounds

VII/B.11 - Pseudomalachite group, Ludjibaite - Reppiaite series

VII/B.11-10 Ludjibaite Cu5(PO4)2(OH)4 P1 1

VII/B.11-20 Pseudomalachite Cu5(PO4)2(OH)4 P 2₁/a 2/m

VII/B.11-30 Reichenbachite Cu5(PO4)2(OH)4 P 2₁/a 2/m

VII/B.11-40 Cornwallite Cu5(AsO4)2(OH)4 P 2₁/a 2/m

VII/B.11-50 Cornubite Cu5(AsO4)2(OH)4 P1 1

VII/B.11-60 Turanite Cu5(VO4)2(OH)4 P1 1

VII/B.11-65 Gatehouseite Mn5(PO4)2(OH)4 P 2₁2₁2₁ 2 2 2

VII/B.11-70 Arsenoclasite Mn5(AsO4)2(OH)4 P 2₁2₁2₁ 2 2 2

VII/B.11-80 Reppiaite Mn5[(V,As)O4]2(OH)4 C 2/m 2/m

Other Turanite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8, CanMin 42:731) OPTIC PROP.(Dana8)

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Turanite

Cu5(VO4)2(OH)4
Dana No: 41.4.4.1 Strunz No: VII/B.11-60
Locality:

Notes: