Hungchaoite  Mineral Data

Hungchaoite Mineral Data

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


General Hungchaoite Information

Help on Chemical  Formula: Chemical Formula: MgB4O5(OH)4•7(H2O)
Help on Composition: Composition: Molecular Weight = 341.68 gm
   Magnesium   7.11 %  Mg   11.80 % MgO
   Boron      12.66 %  B    40.75 % B2O3
   Hydrogen    5.31 %  H    47.45 % H2O
   Oxygen     74.92 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: MgB4O5(OH)4•7(H2O)
Help on Environment: Environment: Lacustrine saline borate deposits
Help on IMA Status: IMA Status: Approved IMA 1964
Help on Locality: Locality: Unspecified locality in China [the Qinghai-Xizang Plateau, Tibet]. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Chang Hung-chao (1877-1951), Chinese geologist and mineralogist.
Help on Name Pronunciation: Name Pronunciation: Hungchaoite + Pronunciation Say HUNGCHAOITE
Help on Synonym: Synonym: ICSD 10423
  PDF 34-1288
 

Search for Hungchaoite Images

Click Here To Search Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

  

Hungchaoite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8277:1:0.741
Help on Cell Dimensions: Cell Dimensions: a = 8.811, b = 10.644, c = 7.888, Z = 2; alpha = 103.38°, beta = 108.58°, gamma = 97.15° V = 676.88 Den(Calc)= 1.68
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): 6.71(1), 3.356(0.92), 5.36(0.85),
Click Here for Large Hungchaoite 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


Wan C , Ghose S , American Mineralogist , 62 (1977) p.1135-1143, Hungchaoite, Mg(H2O)5B4O5(OH)4.2H2O: a hydrogen-bonded molecular complex

 

Physical Properties of Hungchaoite

Help on Cleavage: Cleavage: {111} Good, {111} Good
Help on Color: Color: Colorless, White.
Help on Density: Density: 1.706
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Streak: Streak: white
 

Optical Properties of Hungchaoite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.018 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.022 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2784,KPDmeas= 0.2775,KC= 0.2725
Ncalc = 1.46
Help on Optical Data: Optical Data: Biaxial (-), a=1.445, b=1.485, g=1.49, bire=0.0450, 2V(Calc)=38, 2V(Meas)=15.
 

Calculated Properties of Hungchaoite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.78 gm/cc
note: Specific Gravity of Hungchaoite =1.71 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEHungchaoite = 0.46 barns/electron
U=PEHungchaoite x rElectron Density= 0.82 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hungchaoite is Not Radioactive
 

Hungchaoite Classification

Help on  Dana Class: Dana Class: 26.04.03.01 (26)Hydrated Borates Containing Hydroxyl or Halogen
  (26.04)Dana Type
  (26.04.03)Dana Group
 
26.04.03.01 Hungchaoite MgB4O5(OH)4•7(H2O) P1 1
Help on  Strunz Class: Strunz Class: 06.DA.20 06 - BORATES
  06.D - Tetraborates
  06.DA -Neso-tetraborates
 
06.DA.20 Hungchaoite MgB4O5(OH)4•7(H2O) P1 1
 

Other Hungchaoite Information

Help on References: References: NAME( AntBidBlaNic5) 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 Hungchaoite :
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
15 - WWW-MINCRYST

Search for Hungchaoite using:

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

Visit our Advertisers for Hungchaoite :

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

Ask about Hungchaoite 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 Hungchaoite Specimen Label here :

Hungchaoite

MgB4O5(OH)4•7(H2O)
Dana No: 26.04.03.01 Strunz No: 06.DA.20
Locality:

 

Notes: