Thalenite-(Y)  Mineral Data

Thalenite-(Y) Mineral Data

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

Advertisment
John Betts - Fine Minerals, New York. Dealers of Fine Minerals and Natural Crystal Clusters since 1989. We buy rock collections, we buy gem collections, we buy mineral collections.
For more than thirty (30) years, Excalibur Mineral Corp. has been providing private collectors, researchers, major universities and museums throughout the world with reliably identified, rare and unusual mineral samples for science an
Dakota Matrix was founded in 1996 and has offered systematic and rare mineral specimens online since 1998.
McDougall Minerals sells high-quality mineral specimens from all over the world to collectors of all levels, from beginners to connoisseurs

General Thalenite-(Y) Information

Help on Chemical  Formula: Chemical Formula: Y3Si3O10(OH)
Help on Composition: Composition: Molecular Weight = 527.98 gm
   Yttrium   50.52 %  Y    64.15 % Y2O3
   Silicon   15.96 %  Si   34.14 % SiO2
   Hydrogen   0.19 %  H     1.71 % H2O
   Oxygen    33.33 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Y3Si3O10(OH)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1898
Help on Locality: Locality: Askagen, Vermland, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Tobins Robert Thalen (1827-1905), Swedish physicist.
Help on Name Pronunciation: Name Pronunciation: Thalenite-(Y) + Pronunciation Say THALENITE-(Y)
Help on Synonym: Synonym: ICSD 65001
  PDF 38-439
 

Thalenite-(Y) Image

Click Here for Larger Thalenite-(Y) Image in a New Browser Window Images:
Click Here for Larger Thalenite-(Y) Image

Thalenite-(Y)

Comments: Subhedral, brownish thalenite-(Y) crystal embedded in a sucrosic matrix of yttrian fluorite.
Location: Hundholmen, Tysfjord, Norway. Scale: 0.5 cm.
© Sigurd Stordal / University of Tromsoe

Thalenite-(Y) Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9323:1:0.6573
Help on Cell Dimensions: Cell Dimensions: a = 10.34, b = 11.09, c = 7.29, Z = 4; beta = 96.9° V = 829.89 Den(Calc)= 4.23
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.1(1), 2.81(0.4), 2.75(0.3),
Click Here for Large Thalenite-(Y) 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


Kornev A N , Batalieva N G , Maksimov B A , Ilyukhin V V , Belov N V , Soviet Physics Doklady , 17 (1972) p.88-90, Crystal structure of the talenite Y3 [Si3O10](OH), Locality: Russia

 

Physical Properties of Thalenite-(Y)

Help on Cleavage: Cleavage: None
Help on Color: Color: Pink, Brownish green, Brown.
Help on Density: Density: 4.2
Help on Diaphaneity: Diaphaneity: Translucent to subtranslucent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 6-6.5 - Orthoclase-Pyrite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Thalenite-(Y)

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.055 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.062 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1744,KPDmeas= 0.1756,KC= 0.1859
Ncalc = 1.78 - 1.79
Help on Optical Data: Optical Data: Biaxial (-), a=1.731, b=1.738, g=1.744, bire=0.0130, 2V(Calc)=84, 2V(Meas)=68.
 

Calculated Properties of Thalenite-(Y)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.95 gm/cc
note: Specific Gravity of Thalenite-(Y) =4.20 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0076128673
Boson Index = 0.9923871327
Help on Photoelectric: Photoelectric: PEThalenite-(Y) = 63.75 barns/electron
U=PEThalenite-(Y) x rElectron Density= 251.53 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Thalenite-(Y) is Not Radioactive
 

Thalenite-(Y) Classification

Help on  Dana Class: Dana Class: 55.02.01b.02 (55)Sorosilicate Si2O7 Groups, Generally with No Additional Anions
  (55.02)with cations in [6] coordination
  (55.02.01b)Thortveitite related species
 
55.02.01b.01 Rowlandite-(Y) Y4FeSi4O14F2(?) None
 
55.02.01b.02 Thalenite-(Y) Y3Si3O10(OH) P 21/n 2/m
 
55.02.01b.03 Yttrialite-(Y) (Y,Th)2Si2O7 P 21/m 2/m
 
55.02.01b.04 Fluorthalenite-(Y)! Y3Si3O10F P 21/m 2/m
Help on  Strunz Class: Strunz Class: 09.BJ.20 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BJ -Sorosilicates with Si3O10, Si4O11, etc
 
09.BJ.20 Fluorthalenite-(Y)! Y3Si3O10F P 21/m 2/m
 
09.BJ.20 Thalenite-(Y) Y3Si3O10(OH) P 21/n 2/m
 

Other Thalenite-(Y) Information

Help on References: References: NAME( Ford32) PHYS. PROP.(Dana8) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Thalenite-(Y) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
13 - WWW-MINCRYST

Search for Thalenite-(Y) using:

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

Visit our Advertisers for Thalenite-(Y) :

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

Ask about Thalenite-(Y) 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 Thalenite-(Y) Specimen Label here :

Thalenite-(Y)

Y3Si3O10(OH)
Dana No: 55.02.01b.02 Strunz No: 09.BJ.20
Locality:

 

Notes: