Ussingite Mineral Data (original) (raw)

General Ussingite Information

Help on Chemical Formula: Chemical Formula:

Na2AlSi3O8(OH)

Help on Composition: Composition:

Molecular Weight = 302.22 gm

Sodium 15.21 % Na 20.51 % Na2O

Aluminum 8.93 % Al 16.87 % Al2O3

Silicon 27.88 % Si 59.64 % SiO2

Hydrogen 0.33 % H 2.98 % H2O

Oxygen 47.65 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Na2AlSi3O8(OH)

Help on Environment: Environment:

Syenite pegmatites. Distinguished from sodalite by lack of fluorescence.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1915

Help on Locality: Locality:

Kangerdluarusuk, Ilimaussaq, Greenland. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Niels Viggo Ussing (1864-1911), Copenhagen, Denmark.

Help on Name Pronunciation: Name Pronunciation:

Ussingite + Pronunciation Say USSINGITE

Help on Synonym: Synonym:

ICSD 6265

PDF 28.1037

Ussingite Image

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

Click Here for Larger Ussingite Image Ussingite Cuprostibite Comments: Massive ussingite hosting grains of the very rare copper antimony-thallium bearing cuprostibite. Location: Ilimaussaq, Tasseq, Greenland.Scale: 4.8 x3.4 cm. © John Veevaert

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

Click Here for Larger Ussingite Image Ussingite Vuonnemite Comments: Massive, violet colored ussingite with a single bladed partial crystal of white vuonnemite 1.5 cm in length. Location: Mt. Karnasurf, Lovozero, Russia.Scale: 4.2 x 3 cm. © John Veevaert

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

Ussingite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =0.944:1:1.1297

Help on Cell Dimensions: Cell Dimensions:

a = 7.256, b = 7.686, c = 8.683, Z = 2; alpha = 90.75°, beta = 99.75°, gamma = 122.48° V = 402.57 Den(Calc)= 2.49

Help on Crystal System: Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 2.993(1), 6.502(0.69), 4.245(0.54),

Click Here for Large Ussingite 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

| | Rossi G , Tazzoli V , Ungaretti L , American Mineralogist , 59 (1974) p.335-340, The crystal structure of ussingite | | ---------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Ussingite

Help on Cleavage: Cleavage:

{001} Perfect, {110} Perfect

Help on Color: Color:

White, Light violet red, Dark violet red, Pink, Reddish violet.

Help on Density: Density:

2.46 - 2.5, Average = 2.48

Help on Diaphaneity: Diaphaneity:

Transparent

Help on Habit: Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Help on Hardness: Hardness:

6.5 - Pyrite

Help on Luminescence: Luminescence:

Non-fluorescent.

Help on Luster: Luster:

Vitreous (Glassy)

Help on Streak: Streak:

white

Optical Properties of Ussingite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= -0.005 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.007 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2067,KPDmeas= 0.2092,KC= 0.2081
Ncalc = 1.51 - 1.52

Help on Optical Data: Optical Data:

Biaxial (+), a=1.504, b=1.508-1.509, g=1.543-1.545, bire=0.0390-0.0410, 2V(Calc)=40-42, 2V(Meas)=32-39.

Help on Pleochroism (x): Pleochroism (x):

pleochroic.

Help on Pleochroism (y): Pleochroism (y):

pleochroic.

Help on Pleochroism (z): Pleochroism (z):

pleochroic.

Calculated Properties of Ussingite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.46 gm/cc
note: Specific Gravity of Ussingite =2.48 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Help on Photoelectric: Photoelectric:

PEUssingite = 1.58 barns/electron
U=PEUssingite x rElectron Density= 3.88 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ussingite is Not Radioactive

Ussingite Classification

Help on Dana Class: Dana Class:

76.03.03.01 (76)Tectosilicate Al-Si Framework

(76.03)with other Be/Al/Si frameworks

(76.03.03)Dana Group

76.03.03.01 Ussingite Na2AlSi3O8(OH) P1 1

Help on Strunz Class: Strunz Class:

09.EH.20 09 - SILICATES (Germanates)

09.E - Phyllosilicates

09.EH -Transitional structures between phyllosilicate and other silicate units

09.EH.20 Ussingite Na2AlSi3O8(OH) P1 1

Other Ussingite Information

Help on References: References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)

Help on See Also: See Also:

Links to other databases for Ussingite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
5 - EUROmin Project
6 - Ecole des Mines de Paris
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info
17 - WWW-MINCRYST

Search for Ussingite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Ussingite :

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

Ask about Ussingite 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 Espa�ol

Print or Cut-and-Paste your Ussingite Specimen Label here :

Ussingite

Na2AlSi3O8(OH)
Dana No: 76.03.03.01 Strunz No: 09.EH.20
Locality:

Notes: