Glauberite Mineral Data

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



[Newest Minerals] [Minerals for Sale] [Educational Articles] [About Us] [Image Gallery]
John Betts - Fine Minerals
Classic minerals, out-of-print books & magazines, plus informative articles for collectors


General Glauberite Information

Help on Chemical Formula: Chemical Formula: Na2Ca(SO4)2
Help on Composition: Composition: Molecular Weight = 278.18 gm
   Sodium   16.53 %  Na   22.28 % Na2O
   Calcium  14.41 %  Ca   20.16 % CaO
   Sulfur   23.05 %  S    57.56 % SO3
   Oxygen   46.01 %  O
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2Ca(SO4)2
Help on Environment: Environment: Dry salt-lake beds or marine evaporite deposits, generally in desert climates.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1808
Help on Locality: Locality: El Castellar mine, Villarrubia de Santiago, Castile-La Mancha, Spain Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Glauber's Salt, of alchemist origin which is named for Johann Rudolf Glauber (1604-1668), German alchemist.
Help on Name Pronunciation: Name Pronunciation: Glauberite + Pronunciation Say GLAUBERITE
Help on Synonym: Synonym: Glauber's Salt
  ICSD 26773
  PDF 19-1187
 

Glauberite Image

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

Glauberite

Comments: Translucent crystals of glauberite.
Location: Superior, Pinal County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
Click Here for Larger Glauberite Image in a New Browser Window Images:
Click Here for Larger Glauberite Image

Glauberite   Hydroglauberite

Comments: Putty-colored chalky hydroglauberite on glauberite crystals.
Location: Camp Verde, Yavapai County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Glauberite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.2194:1:1.0273
Help on Cell Dimensions: Cell Dimensions: a = 10.129, b = 8.306, c = 8.533, Z = 4; beta = 112.183° V = 664.76 Den(Calc)= 2.78
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.13(1), 2.66(0.8), 6.22(0.8),
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: ( 1 1 1) ( 1 1 0) ( 1 0 0) ( 0 0 1)

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


Araki T , Zoltai T , American Mineralogist , 52 (1967) p.1272-1277, Refinement of the crystal structure of a glauberite

 

Physical Properties of Glauberite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Colorless, Gray, Gray white, Yellow, Yellowish white.
Help on Density: Density: 2.7 - 2.85, Average = 2.77
Help on Diaphaneity: Diaphaneity: Transparent to translucent
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: 2.5-3 - Finger Nail-Calcite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Glauberite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.014 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.012 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1888,KPDmeas= 0.1891,KC= 0.1865
Ncalc = 1.5 - 1.53
Help on Optical Data: Optical Data: Biaxial (-), a=1.507-1.515, b=1.527-1.535, g=1.529-1.536, bire=0.0210-0.0220, 2V(Calc)=24-34, 2V(Meas)=0-7. Dispersion strong, r > v.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
 

Calculated Properties of Glauberite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.76 gm/cc
note: Specific Gravity of Glauberite =2.78 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0021443772
Boson Index = 0.9978556228
Help on Photoelectric: Photoelectric: PEGlauberite = 3.43 barns/electron
U=PEGlauberite x rElectron Density= 9.47 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Glauberite is Not Radioactive
 

Glauberite Classification
Help on Dana Class: Dana Class: 28.04.02.01 (28)Anhydrous Acid and Sulfates
  (28.04)with miscellaneous formulae
  (28.04.02)Dana Group
 
28.04.02.01 Glauberite Na2Ca(SO4)2 C 2/c 2/m
Help on Strunz Class: Strunz Class: 07.AD.25 07 - SULFATES (SELENATES, TELLURATES)
  07.A - Sulfates (selenates, etc.) without Additional Anions, without H2O
  07.AD -With only large cations
 
07.AD.25 Glauberite Na2Ca(SO4)2 C 2/c 2/m
 

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

Search for Glauberite using:

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

Visit our Advertisers for Glauberite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

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 Glauberite Mineral Data :

Ask about Glauberite 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 Glauberite Specimen Label here :

Glauberite

Na2Ca(SO4)2
Dana No: 28.04.02.01 Strunz No: 07.AD.25
Locality:

 

Notes: