Ternesite Mineral Data

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


General Ternesite Information

Help on Chemical Formula: Chemical Formula: Ca5(SiO4)2SO4
Help on Composition: Composition: Molecular Weight = 480.62 gm
   Calcium  41.69 %  Ca   58.34 % CaO
   Silicon  11.69 %  Si   25.00 % SiO2
   Sulfur    6.67 %  S    16.66 % SO3
   Oxygen   39.95 %  O
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca5(SiO4)2(SO4)
Help on Environment: Environment: In calcium-rich xenoliths in leucite tephrite lava.
Help on IMA Status: IMA Status: Approved IMA 1997 (Dana # Added)
Help on Locality: Locality: The Ettringer Bellerberg, near Mayen, Eifel, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Mr. B. Ternes of Mayen, Germany, who found the mineral and provided specimens for the study.
Help on Name Pronunciation: Name Pronunciation: Ternesite + Pronunciation Say TERNESITE
Help on Synonym: Synonym: ICSD 85123
  IMA1995-015
  PDF 49-1807
 

Ternesite Image

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

Ternesite

Comments: Pale blue crystalline ternesite.
Location: Bellerberg, Eifel, Rheinland-Pflaz, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ternesite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.446:1:0.6616
Help on Cell Dimensions: Cell Dimensions: a = 6.863, b = 15.387, c = 10.181, Z = 4; V = 1,075.12 Den(Calc)= 2.97
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: P nma
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.83(1), 2.853(0.63), 2.565(0.55),
Click Here for Large Ternesite 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


Irran E , Tillmanns E , Hentschel G , Mineralogy and Petrology , 60 (1997) p.121-132, Ternesite, Ca5(SiO4)2SO4, a new mineral from the Ettringer Bellerberg/Eifel, Germany, Locality: Ettringer Bellerberg volcano, Eifel, Germany

 

Physical Properties of Ternesite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless, Bright blue.
Help on Density: Density: 2.94 - 2.98, Average = 2.96
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous (Glassy)
 

Optical Properties of Ternesite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.053 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.049 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.214,KPDmeas= 0.2148,KC= 0.204
Ncalc = 1.6 - 1.61
Help on Optical Data: Optical Data: Biaxial (-), a=1.63, b=1.637, g=1.64, bire=0.0100
 

Calculated Properties of Ternesite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.97 gm/cc
note: Specific Gravity of Ternesite =2.97 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0067129231
Boson Index = 0.9932870769
Help on Photoelectric: Photoelectric: PETernesite = 5.96 barns/electron
U=PETernesite x rElectron Density= 17.67 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ternesite is Not Radioactive
 

Ternesite Classification
Help on Dana Class: Dana Class: 53.02.04.01 (53)Nesosilicate Insular SiO4 Groups and Other Anions of Complex Cations
  (53.02)with (SO4), (CrO4), (PO4), etc.
  (53.02.04)Dana Group
 
53.02.04.01 Ternesite! Ca5(SiO4)2SO4 P nma 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 09.AH.20 09 - SILICATES (Germanates)
  09.A - Nesosilicates
  09.AH -Nesosilicates with CO3, SO4, PO4, etc.
 
09.AH.20 Ternesite! Ca5(SiO4)2SO4 P nma 2/m 2/m 2/m
 

Other Ternesite Information
Help on References: References: NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.83,p655,1998) OPTIC PROP.(MinRec)
Help on See Also: See Also: Links to other databases for Ternesite :
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 Ternesite using:

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

Visit our Advertisers for Ternesite :

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

Ask about Ternesite 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 Ternesite Specimen Label here :

Ternesite

Ca5(SiO4)2SO4
Dana No: 53.02.04.01 Strunz No: 09.AH.20
Locality:

 

Notes: