Surkhobite Mineral Data

Surkhobite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images Share
      News Help About


General Surkhobite Information

Help on Chemical Formula: Chemical Formula: KBa3Ca2Na2(Mn, Fe++,Fe+++)16Ti8(Si2O7)8O8(OH)4 (F,O,OH)8
Help on Composition: Composition: Molecular Weight = 3,523.22 gm
   Potassium   1.56 %  K     1.88 % K2O
   Barium     10.06 %  Ba   11.23 % BaO
   Sodium      1.70 %  Na    2.29 % Na2O
   Strontium   0.22 %  Sr    0.26 % SrO
   Calcium     1.82 %  Ca    2.55 % CaO
   Magnesium   0.08 %  Mg    0.13 % MgO
   Zirconium   0.26 %  Zr    0.35 % ZrO2
   Titanium    9.74 %  Ti   16.26 % TiO2
   Manganese  12.74 %  Mn   16.45 % MnO
   Niobium     1.50 %  Nb    2.15 % Nb2O5
   Aluminum    0.01 %  Al    0.01 % Al2O3
   Iron       12.40 %  Fe   14.03 % FeO /  2.13 % Fe2O3
   Silicon    12.80 %  Si   27.39 % SiO2
   Hydrogen    0.13 %  H     1.18 % H2O
   Oxygen     32.02 %  O
   Fluorine    2.96 %  F     2.96 % F
                -   %   F    -1.25 % -O=F2    
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2.6K1.41Ca1.6Sr0.09Ba2.58Mn2+8.17Fe2+6.88Fe3+0.94Mg0.11Al0.01Ti7.17Nb0.57Zr0.1 Si16.06H4.61F5.49O70.51
Help on Environment: Environment: Rare-metal syenite pegmatite. Discredited because surkhobite (2003) is considered to be junshajiangite (1981). Redefined with new formula 2008.
Help on IMA Status: IMA Status: Redifined IMA 2008, Discredited IMA 2007, Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Serkhob River Basin, Dara-i-Pioz massif, Central Tajikistan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Synonym: Synonym: IMA2002-037
  IMA2007-06-E - Surkhobite Discredited
  IMA2008-07-A - Surkhobite Redifined
 

Surkhobite Image

Click Here for Larger Surkhobite Image in a New Browser Window Images:
Click Here for Larger Surkhobite Image

Surkhobite

Comments: Small grain of reddish surkhobite.
Location: Dara-i-Pioz Glacier, Altai Range, Tajikistan. Scale: Graph Size 1 mm.
© Sergey Vasiliev / Systematic Mineralogy

Surkhobite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.7746:1:1.5034
Help on Cell Dimensions: Cell Dimensions: a = 10.719, b = 13.838, c = 20.805, Z = 2; beta = 95.09° V = 3,073.83 Den(Calc)= 3.81
Help on Crystal System: Crystal System: Monoclinic - SphenoidalH-M Symbol (2) Space Group: C 2
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.454(1)(006), 2.592(0.7)(008), 2.074(0.4)(048),10.39(0.2)(002), 1.728(0.15)(602,371,370)2.862(0.15)(225), 3.186(0.15),
Click Here for Large Surkhobite Structure Window 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


Rastsvetaeva R K , Eskova E M , Dusmatov V D , Chukanov N V , Schneider F , European Journal of Mineralogy , 20 (2008) p.289-295, Surkhobite: revalidation and redefinition with the new formula,, (Ba,K)2CaNa(Mn,Fe2+,Fe3+)8Ti4(Si2O7)4O4(F,OH,O)6, Locality: massif Darai-Pioz, Tajikistan

 

Physical Properties of Surkhobite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Brownish red.
Help on Density: Density: 3.84
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Surkhobite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.029 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.021 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2219,KPDmeas= 0.2201,KC= 0.2267
Ncalc = 1.86 - 1.87
Help on Optical Data: Optical Data: Biaxial (-), a=1.79, b=1.858, g=1.888, bire=0.0980, 2V(Calc)=64, 2V(Meas)=65. Dispersion r < v strong.
 

Calculated Properties of Surkhobite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.62 gm/cc
note: Specific Gravity of Surkhobite =3.81 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PESurkhobite = 54.99 barns/electron
U=PESurkhobite x relectron= 198.90 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 21.43 (Gamma Ray American Petroleum Institute Units)
Concentration of Surkhobite per GRapi unit = 4.67 (%)

Estimated Radioactivity from Surkhobite - barely detectable

 

Surkhobite Classification
Help on Dana Class: Dana Class: 56.02.06b.04 (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O
  (56.02)with cations in [4] and/or >[4] coordination
  (56.02.06b)Seidozerite - Lamprophyllite group (Bafertisite subgroup)
 
56.02.06b.01 Bafertisite Ba(Fe,Mn)2TiSi2O7(O,OH)2 Cm m
 
56.02.06b.02 Hejtmanite Ba(Mn,Fe)2TiO(Si2O7)(OH,F)2 P 21/m 2/m
 
56.02.06b.03 Nafertisite! Na3(Fe,Fe)6(Ti2Si12O34)(O,OH)7•2(H2O) A2/m 2/m
 
56.02.06b.04 Surkhobite! KBa3Ca2Na2(Mn,Fe,Fe)16Ti8(Si2O7)8O8(OH)4(F,O,OH)8 C 2 2
 
56.02.06b.05 Nechelyustovite! (Ba,Na)2{(Na,Ti,Mn)4[(Ti,Nb)2O2Si4O14](OH,O,F)2}•4.5H2O P 2/m 2/m
 
56.02.06b.06 Caryochroite! (Na,Sr)3(Fe,Mg)10[Ti2Si12O37](O,OH)9•8H2O P 2/n (?) 2/m
Help on Strunz Class: Strunz Class: 09.BE.67 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BE -Si2O7 groups with additional anions;
 
09.BE.67 Jinshajiangite Na2K5BaCa(Fe,Mn)8(Ti,Fe,Nb,Zr)4Si8O32(O,F,H2O)6 C 2/m,Cm,C 2 Mono
 
09.BE.67 Perraultite (Na,Ca)2(Ba,K)2(Mn,Fe)8(Ti,Nb)4Si8O32(OH,F,O)6 C 2 2
 
09.BE.67 Surkhobite KBa3Ca2Na2(Mn,Fe,Fe)16Ti8(Si2O7)8O8(OH)4(F,O,OH)8 C 2 2
 

Other Surkhobite Information
Help on References: References: NAME( AmMin, v 89, p 469) PHYS. PROP.(AmMin, v89:469 and v93:1944) OPTIC PROP.(AmMin, v 89, p 469)
Help on See Also: See Also: Links to other databases for Surkhobite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

Search for Surkhobite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Surkhobite :

A Bijoux Google Search for Surkhobite
Adam's Minerals Google Search for Surkhobite
Cape Minerals Google Search for Surkhobite
Dakota Matrix Minerals Google Search for Surkhobite
Excalibur Mineral Corp. Google Search for Surkhobite
Exceptional Minerals Google Search for Surkhobite
John Betts Fine Minerals Search for Surkhobite
McDougall Minerals Google Search for Surkhobite
Mineral News Website Link
Rock and Mineral Shows Google Search for Surkhobite
Weinrich Minerals, Inc. Google Search for Surkhobite

Ask about Surkhobite 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 Espaņol

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

Surkhobite

KBa3Ca2Na2(Mn, Fe++,Fe+++)16Ti8(Si2O7)8O8(OH)4 (F,O,OH)8
Dana No: 56.02.06b.04 Strunz No: 09.BE.67
Locality:

 

Notes: