Ansermetite Mineral Data

Ansermetite Mineral Data

[New Updates] [Gallery 1] [Gallery 2] [Gallery 3] [Rock Shop Gallery]
Serving the mineral collector and educator community since 1970
Over 900,000 mineral specimens in stock
New minerals acquired weekly - Wright's Rock Shop

General Ansermetite Information

Chemical Formula:

MnV2O6·4(H2O)

Composition:

Molecular Weight = 315.28 gm

Manganese 16.21 % Mn 20.93 % MnO

Vanadium 30.21 % V 53.94 % V₂O₅

Hydrogen 2.78 % H 24.86 % H₂O

Oxygen 50.80 % O

______ ______

100.00 % 99.72 % = TOTAL OXIDE

Empirical Formula:

Mn²⁺_0.93V⁵⁺_1.87O_5.66·4.35(H₂O)

Environment:

Metamorphosed synsedimentary exhalative Mn deposit. Unstable in air and aqueous solutions at temperatures above ~50-85 deg. C.

IMA Status:

Approved IMA 2003 (Dana # Added)

Locality:

Fianel, Val Ferrera, Eastern Swiss Alps. Link to MinDat.org Location Data.

Name Origin:

Named for Stefan Ansermet (1964-), Swiss mineralogist.

Ansermetite Image

Images:

Ansermetite

Comments: Environmental scanning electron microscope image of the ansermetite crystals. (CanMin, v 41, p 1425).
Location: Fianel, Val Ferrera, Eastern Swiss Alps. Scale: Scale bar 20 µ-m.
© Canadian Mineralogist

Ansermetite Crystallography

Axial Ratios:

a:b:c =1.3004:1:0.6894

Cell Dimensions:

a = 13.171, b = 10.128, c = 6.983, Z = 4; beta = 111.572° V = 866.26 Den(Calc)= 2.42

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m

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

By Intensity(I/I_o): 7.805(1)(110), 3.031(0.7)(131), 3.903(0.3)(220),4.5(0.3)(111), 5.064(0.2)(020), 5.69(0.2)(111),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Brugger J , Berlepsch P , Meisser N , Armbruster T , The Canadian Mineralogist , 41 (2003) p.1423-1431, Ansermetite, MnV2O6.4H2O, a new mineral species with V5+ in five-fold coordination, from Val Ferrera, Eastern Swiss Alps, Locality: Val Ferrera, Eastern Swiss Alps

Physical Properties of Ansermetite

Cleavage:

[110] Perfect

Color:

Carmine red.

Density:

2.57

Diaphaniety:

Transparent

Fracture:

Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

3 - Calcite

Luster:

Adamantine

Streak:

orange

Optical Properties of Ansermetite

Gladstone-Dale:

CI meas= -0.04 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.105 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3415,KPDmeas= 0.3216,KC= 0.3091

Optical Data:

Biaxial (?), a=1.797, g=1.856, bire=0.0590

Calculated Properties of Ansermetite

Electron Density:

r_electron=2.53 gm/cc
note: r_Ansermetite=2.57 gm/cc.

Fermion Index

Fermion Index = 0.001
Boson Index = 0.999

Photoelectric:

PE_Ansermetite= 9.81 barns/electron
U=PE_Ansermetite x r_electron= 24.79 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Ansermetite is Not Radioactive

Ansermetite Classification

Dana Class:

47.1.1.3 (47)Vanadium Oxysalts

(47.1)(Normal VO3)

(47.1.1)Dana Group

47.1.1.1 Rossite CaV2O6·4(H2O) P1 1

47.1.1.2 Metarossite CaV2O6·2(H2O) P1 1

47.1.1.3 Ansermetite ! MnV2O6·4(H2O) C 2/m 2/m

Strunz Class:

IV/G.07-48 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 Ansermetite Information

References:

NAME( CanMin, v 41, p1423) PHYS. PROP.(CanMin, v 41, p1423) OPTIC PROP.(CanMin, v 41, p1423)

See Also:

Links to other databases for Ansermetite :
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

Search for Ansermetite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Ansermetite :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Ansermetite Mineral Data :

Ask about Ansermetite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Ansermetite

MnV2O6·4(H2O)
Dana No: 47.1.1.3 Strunz No: IV/G.07-48
Locality:

Notes: