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Studenitsite Mineral Data

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General Studenitsite Information

Help on Chemical  Formula: Chemical Formula: NaCa2[B9O14(OH)4]•2(H2O)
Help on Composition: Composition: Molecular Weight = 528.49 gm
   Sodium     4.35 %  Na    5.86 % Na2O
   Calcium   15.17 %  Ca   21.22 % CaO
   Boron     18.41 %  B    59.28 % B2O3
   Hydrogen   1.53 %  H    13.64 % H2O
   Oxygen    60.55 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaCa2B9O14(OH)4•2(H2O)
Help on Environment: Environment: In a borate deposit.
Help on IMA Status: IMA Status: Approved IMA 1995
Help on Locality: Locality: In the Pobrdzhsky Potok and Peskanya deposits, 280 km south of Belgrade, near the town of Balevats on the Jbar River, western Serbia, Yugoslavia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For the Serbian cloister Studenitsa near the occurrence.
Help on Name Pronunciation: Name Pronunciation: Studenitsite + Pronunciation Say STUDENITSITE
Help on Synonym: Synonym: ICSD 39758
  PDF 48-1897

Studenitsite Image

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Comments: Pale pink crystalline studenitsite micro fragment.
Location: Piskanja, Srbija, Yugoslavia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Studenitsite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9135:1:0.8365
Help on Cell Dimensions: Cell Dimensions: a = 11.4994, b = 12.5878, c = 10.5297, Z = 4; beta = 99.416° V = 1,503.66 Den(Calc)= 2.33
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.04(1), 3.35(0.89), 5.41(0.66),
Help on Forms: Forms:

Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: ( 0 1 1) ( 1 1 1) ( 0 1 2) ( 1 1 0) ( 1 0 0) ( 0 0 1)

Warning: this java applet does not work in some browsers because of security restrictions.


Physical Properties of Studenitsite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless, Light dirty yellow, Light gray.
Help on Density: Density: 2.29 - 2.33, Average = 2.31
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Fragile - Crystals with a delicate and easily injured structure.
Help on Habit: Habit: Striated - Parallel lines on crystal surface or cleavage face.
Help on Habit: Habit: Wedge shaped - Crystals shaped like a wedge.
Help on Hardness: Hardness: 5.5-6 - Knife Blade-Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Studenitsite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.027 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.018 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2338,KPDmeas= 0.2358,KC= 0.2295
Ncalc = 1.53
Help on Optical Data: Optical Data: Biaxial (+), a=1.532, b=1.538, g=1.564, bire=0.0320, 2V(Calc)=52, 2V(Meas)=54. Dispersion medium, r > v.

Calculated Properties of Studenitsite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.33 gm/cc
note: Specific Gravity of Studenitsite =2.33 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEStudenitsite = 2.17 barns/electron
U=PEStudenitsite x rElectron Density= 5.05 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Studenitsite is Not Radioactive

Studenitsite Classification

Help on  Dana Class: Dana Class: (26)Hydrated Borates Containing Hydroxyl or Halogen
  (26.07)Dana Type
  (26.07.08)Dana Group Studenitsite NaCa2[B9O14(OH)4]•2(H2O) P 21/c 2/m
Help on  Strunz Class: Strunz Class: 06.GB.05 06 - BORATES
  06.G - Heptaborates and other Megaborates
  06.GB -Phyllo-nonborates, etc.
06.GB.05 Studenitsite NaCa2[B9O14(OH)4]•2(H2O) P 21/c 2/m

Other Studenitsite Information

Help on References: References: NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.81,p1284,1996) OPTIC PROP.(MinRec)
Help on See Also: See Also: Links to other databases for Studenitsite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Dana No: Strunz No: 06.GB.05





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