Kurnakovite Mineral Data

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



[How the Club Works] [Memberships - Junior, Deluxe , and Platinum] [FAQ] [Past Minerals]
Join the Club - Junior, Deluxe and Platinum Memberships Available
High Quality Minerals Sent to Your Home or School Each Month
Mineral of the Month Club - An Inexpensive Way to Enjoy Minerals


General Kurnakovite Information

Help on Chemical Formula: Chemical Formula: MgB3O3(OH)5•5(H2O)
Help on Composition: Composition: Molecular Weight = 279.85 gm
   Magnesium   8.69 %  Mg   14.40 % MgO
   Boron      11.59 %  B    37.32 % B2O3
   Hydrogen    5.40 %  H    48.28 % H2O
   Oxygen     74.32 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: MgB3O3(OH)5•5(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1940
Help on Locality: Locality: Inder, Kazakhstan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Nikolai S. Kurnakov (1860-1941), Russian mineralogist.
Help on Name Pronunciation: Name Pronunciation: Kurnakovite + Pronunciation Say KURNAKOVITE
Help on Synonym: Synonym: ICSD 2153
  PDF 29-856
 

Kurnakovite Image

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

Kurnakovite

Comments: Very pale lilac-colored crystal of kurnakovite.
Location: Boron, Kramer District, Kern County, California, USA. Scale: 7.2x4x2.5 cm.
© Richard Dale / Dale Minerals
Click Here for Larger Kurnakovite Image in a New Browser Window Images:
Click Here for Larger Kurnakovite Image

Kurnakovite

Comments: Chalky white outer alteration, else gray, translucent, coarsely-crystalline kurnakovite.
Location: The Open Pit, Boron, Kern Co., California, USA. Scale: 5x4x3cm.
© Tom Loomis / Dakota Matrix

Kurnakovite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.7879:1:0.6071
Help on Cell Dimensions: Cell Dimensions: a = 8.344, b = 10.59, c = 6.43, Z = 2; alpha = 99°, beta = 108.9°, gamma = 105.5° V = 511.61 Den(Calc)= 1.82
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): 7.22(1), 4.9(0.85), 4.21(0.8),
Click Here for Large Kurnakovite 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


Corazza E , Acta Crystallographica, Section B , 30 (1974) p.2194-2199, The crystal structure of kurnakovite: a refinement, Locality: California, USA

 

Physical Properties of Kurnakovite

Help on Cleavage: Cleavage: {110} Good, {001} Indistinct
Help on Color: Color: Colorless, White.
Help on Density: Density: 1.83
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Crystalline - Coarse - Occurs as well-formed coarse sized crystals.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: white
 

Optical Properties of Kurnakovite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.007 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.009 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2708,KPDmeas= 0.2752,KC= 0.2732
Ncalc = 1.5 - 1.51
Help on Optical Data: Optical Data: Biaxial (-), a=1.488, b=1.508, g=1.515, bire=0.0270, 2V(Calc)=60, 2V(Meas)=63. Dispersion r > v.
Help on Pleochroism (x): Pleochroism (x): none.
Help on Pleochroism (y): Pleochroism (y): none.
Help on Pleochroism (z): Pleochroism (z): none.
 

Calculated Properties of Kurnakovite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.91 gm/cc
note: Specific Gravity of Kurnakovite =1.83 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEKurnakovite = 0.48 barns/electron
U=PEKurnakovite x rElectron Density= 0.92 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kurnakovite is Not Radioactive
 

Kurnakovite Classification
Help on Dana Class: Dana Class: 26.03.03.01 (26)Hydrated Borates Containing Hydroxyl or Halogen
  (26.03)Dana Type
  (26.03.03)Dana Group
 
26.03.03.01 Kurnakovite MgB3O3(OH)5•5(H2O) P1 1
Help on Strunz Class: Strunz Class: 06.CA.20 06 - BORATES
  06.C - Triborates
  06.CA -Neso-triborates
 
06.CA.20 Kurnakovite MgB3O3(OH)5•5(H2O) P1 1
 

Other Kurnakovite 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 Kurnakovite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - MinDAT
9 - MinMax(Deutsch)
10 - MinMax(English)
11 - Mineralienatlas (Deutsch)
12 - QUT Mineral Atlas
13 - Ruff.Info
14 - WWW-MINCRYST

Search for Kurnakovite using:

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

Visit our Advertisers for Kurnakovite :

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 Kurnakovite Mineral Data :

Ask about Kurnakovite 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 Kurnakovite Specimen Label here :

Kurnakovite

MgB3O3(OH)5•5(H2O)
Dana No: 26.03.03.01 Strunz No: 06.CA.20
Locality:

 

Notes: