Loughlinite Mineral Data

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



[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store]
See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM]
Rare Minerals, Meteorites, Equipment and Analytical Services
Excalibur Mineral Company, World leaders in the supply of rare species
Serving the scientific and collector communities since 1974


General Loughlinite Information

Help on Chemical Formula: Chemical Formula: Na2Mg3Si6O16•8(H2O)
Help on Composition: Composition: Molecular Weight = 687.52 gm
   Sodium      6.69 %  Na    9.01 % Na2O
   Magnesium  10.61 %  Mg   17.59 % MgO
   Silicon    24.51 %  Si   52.44 % SiO2
   Hydrogen    2.35 %  H    20.96 % H2O
   Oxygen     55.85 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2Mg3Si6O16•8(H2O)
Help on Environment: Environment: In dolomitic oil-shale.
Help on IMA Status: IMA Status: Approved IMA 1960
Help on Locality: Locality: Green River, Sweetwater Coundy, Wyoming, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Gerald Francis Loughlin (1880-1946), chief geologist, U. S. Geological Survey.
Help on Name Pronunciation: Name Pronunciation: Loughlinite + Pronunciation Say LOUGHLINITE
 

Loughlinite Image

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

Loughlinite   Bradleyite

Comments: Silky fibrous veinlets of loughlinite with bradleyite.
Location: Green River area, Sweetwater County, Wyoming, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Loughlinite Crystallography
Help on Crystal System: Crystal System: OrthorhombicSpace Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 12.9(1), 4.34(0.18), 4.51(0.07),
 

Physical Properties of Loughlinite

Help on Color: Color: Pearl white.
Help on Density: Density: 2.165
Help on Habit: Habit: Massive - Fibrous - Distinctly fibrous fine-grained forms.
Help on Luster: Luster: Silky
Help on Streak: Streak: white
 

Optical Properties of Loughlinite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.013 (Superior) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.2356,KC= 0.2326
Ncalc = 1.5
Help on Optical Data: Optical Data: Biaxial (+), a=1.5, b=1.505, g=1.525, bire=0.0250, 2V(Calc)=54, 2V(Meas)=60.
 

Calculated Properties of Loughlinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.20 gm/cc
note: Specific Gravity of Loughlinite =2.17 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PELoughlinite = 1.33 barns/electron
U=PELoughlinite x rElectron Density= 2.94 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Loughlinite is Not Radioactive
 

Loughlinite Classification
Help on Dana Class: Dana Class: 74.03.01b.03 (74)Phyllosilicate Modulated Layers
  (74.03)with joined strips
  (74.03.01b)Palygorskite-sepiolite group (Sepiolite subgroup)
 
74.03.01b.01 Sepiolite Mg4Si6O15(OH)2•6(H2O) Pnan 2/m 2/m 2/m
 
74.03.01b.02 Falcondoite (Ni,Mg)4Si6O15(OH)2•6(H2O) Pncn 2/m 2/m 2/m
 
74.03.01b.03 Loughlinite Na2Mg3Si6O16•8(H2O) Unk Ortho
Help on Strunz Class: Strunz Class: 09.EE.25 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EE -Single tetrahedral nets of 6-membered rings
 
09.EE.25 Falcondoite (Ni,Mg)4Si6O15(OH)2•6(H2O) Pncn 2/m 2/m 2/m
 
09.EE.25 Loughlinite Na2Mg3Si6O16•8(H2O) Unk Ortho
 
09.EE.25 Kalifersite! (K,Na)5Fe7Si20O50(OH)6•12(H2O) P1 1
 
09.EE.25 Sepiolite Mg4Si6O15(OH)2•6(H2O) Pnan 2/m 2/m 2/m
 

Other Loughlinite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Loughlinite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

Search for Loughlinite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [bing] [GeoScienceWorld] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Loughlinite :

B & L Fine Minerals

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

John Betts Fine Minerals

Lapis Mineral Journal

Mineral News

UV Tools

Wrights Rock Shop

Translate Loughlinite Mineral Data :

Ask about Loughlinite 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 Loughlinite Specimen Label here :

Loughlinite

Na2Mg3Si6O16•8(H2O)
Dana No: 74.03.01b.03 Strunz No: 09.EE.25
Locality:

 

Notes: