Thenardite Mineral Data

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


Masons Minerals
[Thumbnails] [Miniatures] [Cabinets] [About Us] [FAQ]
Welcome To Mason's Minerals
Your Source for Beautiful Minerals and Crystals
We offer a no-questioned-asked Satisfaction Guarantee


General Thenardite Information

Help on Chemical Formula: Chemical Formula: Na2SO4
Help on Composition: Composition: Molecular Weight = 142.04 gm
   Sodium  32.37 %  Na   43.63 % Na2O
   Sulfur  22.57 %  S    56.37 % SO3
   Oxygen  45.06 %  O
          ______        ______ 
          100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2(SO4)
Help on Environment: Environment: Non-marine evaporite deposits in arid climates and alteration of alkali-ignous rocks protected from water.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1826
Help on Locality: Locality: Espartinas salt lake, Aranjuez, Madrid prov., Spain Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the French chemist, Louis Jacques Thenard (1777-1826).
Help on Name Pronunciation: Name Pronunciation: Thenardite + Pronunciation Say THENARDITE
Help on Synonym: Synonym: ICSD 28056
  PDF 37-1465
 

Thenardite Image

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

Thenardite

Comments: White thenardite on augite-nephelinite rock.
Location: Bärenstein Quarry, Niederschlag, Oberwiesenthal, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Thenardite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.7933:1:0.4759
Help on Cell Dimensions: Cell Dimensions: a = 9.75, b = 12.29, c = 5.85, Z = 8; V = 700.99 Den(Calc)= 2.69
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: F ddd
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.783(1), 4.66(0.73), 3.178(0.51),
Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: ( 0 1 0) ( 1 0 1) ( 1 1 1) ( 0 1 1)

Warning: this large pop-up is very compute intensive and may not work well with some computers.
Click Here for Large Thenardite 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


Hawthorne F C , Ferguson R B , The Canadian Mineralogist , 13 (1975) p.181-187, Anhydrous sulphates. I: Refinement of the crystal structure of celestite, with an appendix on the structure of thenardite

 

Physical Properties of Thenardite

Help on Cleavage: Cleavage: {010} Perfect
Help on Color: Color: White, Grayish white, Yellowish white, Reddish white, Brownish white.
Help on Density: Density: 2.67 - 2.7, Average = 2.68
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Splintery - Thin, elongated fractures produced by intersecting good cleavages or partings (e.g. hornblende).
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
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: 2.5 - Finger Nail
Help on Luminescence: Luminescence: Fluorescent and Phosphorescent, Short UV=bright white, Long UV=bright white.
Help on Luster: Luster: Vitreous - Greasy
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: white
 

Optical Properties of Thenardite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.027 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.029 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1774,KPDmeas= 0.1778,KC= 0.1827
Ncalc = 1.49
Help on Optical Data: Optical Data: Biaxial (+), a=1.471, b=1.477, g=1.484, bire=0.0130, 2V(Calc)=86, 2V(Meas)=83. Dispersion none.
Help on Pleochroism (x): Pleochroism (x): none.
Help on Pleochroism (y): Pleochroism (y): none.
 

Calculated Properties of Thenardite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.65 gm/cc
note: Specific Gravity of Thenardite =2.69 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0019093767
Boson Index = 0.9980906233
Help on Photoelectric: Photoelectric: PEThenardite = 1.88 barns/electron
U=PEThenardite x rElectron Density= 4.98 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Thenardite is Not Radioactive
 

Thenardite Classification
Help on Dana Class: Dana Class: 28.02.03.01 (28)Anhydrous Acid and Sulfates
  (28.02)(A+)2 XO4
  (28.02.03)Dana Group
 
28.02.03.01 Thenardite Na2SO4 F ddd 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 07.AC.25 07 - SULFATES (SELENATES, TELLURATES)
  07.A - Sulfates (selenates, etc.) without Additional Anions, without H2O
  07.AC -With medium-sized and large cations
 
07.AC.25 Thenardite Na2SO4 F ddd 2/m 2/m 2/m
 

Other Thenardite Information
Help on See Also: See Also: Links to other databases for Thenardite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Amethyst Galleries' Mineral Gallery
5 - Athena
6 - EUROmin Project
7 - Ecole des Mines de Paris
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - MinDAT
13 - MinMax(Deutsch)
14 - MinMax(English)
15 - Mineral and Gemstone Kingdom
16 - Mineralienatlas (Deutsch)
17 - QUT Mineral Atlas
18 - Ruff.Info
19 - WWW-MINCRYST
20 - YupRocks

Search for Thenardite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Thenardite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Thenardite Mineral Data :

Ask about Thenardite 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 Thenardite Specimen Label here :

Thenardite

Na2SO4
Dana No: 28.02.03.01 Strunz No: 07.AC.25
Locality:

 

Notes: