Yazganite Mineral Data

Yazganite Mineral Data

General Yazganite Information

Chemical Formula:

NaFe+++2(Mg,Mn)(AsO4)3·H2O

Composition:

Molecular Weight = 601.42 gm

Sodium 3.82 % Na 5.15 % Na₂O

Magnesium 3.03 % Mg 5.03 % MgO

Manganese 2.28 % Mn 2.95 % MnO

Iron 18.57 % Fe 26.55 % Fe₂O₃

Arsenic 37.37 % As 57.32 % As₂O₅

Hydrogen 0.34 % H 3.00 % H₂O

Oxygen 34.58 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaFe³⁺₂Mg_0.75Mn²⁺_0.25(AsO₄)₃·(H₂O)

Environment:

Alluaudite group

IMA Status:

Proposed IMA 2003 (Dana # Added)

Locality:

Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals and Mineral Names (CNMMN)

Synonym:

IMA2003-033

Search for Yazganite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Yazganite Crystallography

Axial Ratios:

a:b:c =0.9511:1:0.5183

Cell Dimensions:

a = 12.181, b = 12.807, c = 6.6391, Z = 4; beta = 112.441° V = 957.28 Den(Calc)= 4.17

Crystal System:

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

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

By Intensity(I/I_o): 2.768(1), 2.611(0.4), 3.202(0.4),2.917(0.35), 3.575(0.3), 5.63(0.2), 6.4(0.2),

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

Sarp H , Cerny R , European Journal of Mineralogy , 17 (2005) p.367-373, Yazganite, NaFe3+2(Mg,Mn)(AsO4)3*H2O, a new mineral:, its description and crystal structure, Note: variant of the johillerite structure, alluaudite group, Sample: Volcanic complex of Erciyes, 10 km south of the prefecture of Kayseri,, near Hisarcik, village Kiranardi, Turkey

Physical Properties of Yazganite

Color:

Brown, Brownish black.

Diaphaniety:

Translucent

Luster:

Adamantine

Optical Properties of Yazganite

Gladstone-Dale:

CI calc= -0.004 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2132,KC= 0.2123

Optical Data:

Biaxial (-), a=1.87, b=1.897, g=1.9, bire=0.0300

Calculated Properties of Yazganite

Electron Density:

r_electron=3.93 gm/cc
note: r_Yazganite=4.17 gm/cc.

Fermion Index

Fermion Index = 0.00713
Boson Index = 0.99287

Photoelectric:

PE_Yazganite= 32.16 barns/electron
U=PE_Yazganite x r_electron= 126.32 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Yazganite is Not Radioactive

Yazganite Classification

Dana Class:

38.2.3.10 (38)Anhydrous Phosphates, etc

(38.2)(A+ B++)5 (XO4)3

(38.2.3)Alluaudite-Wyllieite Group (Alluaudite Subgroup)

38.2.3.1 Ferrohagendorfite* (Na,Ca)2Fe(Fe,Fe)2(PO4)3 I 2₁/a 2/m

38.2.3.2 Hagendorfite NaCaMn(Fe,Fe,Mg)2(PO4)3 I 2₁/a 2/m

38.2.3.3 Varulite NaCaMn(Mn,Fe,Fe)2(PO4)3 C 2/c 2/m

38.2.3.4 Maghagendorfite NaMgMn(Fe,Fe)2(PO4)3 I 2₁/a 2/m

38.2.3.5 Ferroalluaudite NaCaFe(Fe,Mn,Fe,Mg)2(PO4)3 C 2/a 2/m

38.2.3.6 Alluaudite NaCaFe(Mn,Fe,Fe,Mg)2(PO4)3 C 2/c 2/m

38.2.3.7 Odanielite Na(Zn,Mg)3H2(AsO4)3 C 2/c 2/m

38.2.3.8 Johillerite Na(Mg,Zn)3Cu(AsO4)3 I2/c 2/m

38.2.3.9 Nickenichite Na0,8Ca0,4(Mg,Fe,Al)3Cu0,4(AsO4)3 C 2/c 2/m

38.2.3.10 Yazganite ! NaFe2(Mg,Mn)(AsO4)3·H2O C 2/c 2/m

Strunz Class:

VII/X.00-00 VII - Phosphates, Arsenates and Vanadates

VII/X - Unclassified Strunz Phosphates, Arsenates and Vanadates

VII/X.00 - Alluaudite group

Other Yazganite Information

See Also:

Links to other databases for Yazganite :
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 Yazganite using:

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

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

Translate Yazganite Mineral Data :

Ask about Yazganite 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 Yazganite Specimen Label here :

Yazganite

NaFe+++2(Mg,Mn)(AsO4)3·H2O
Dana No: 38.2.3.10 Strunz No: VII/X.00-00
Locality:

Notes: