Lisitsynite Mineral Data

General Lisitsynite Information

Chemical Formula:

KBSi2O6

Composition:

Molecular Weight = 202.08 gm

Potassium 19.35 % K 23.31 % K₂O

Silicon 27.80 % Si 59.47 % SiO₂

Boron 5.35 % B 17.23 % B₂O₃

Oxygen 47.51 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

KBSi₂O₆

Environment:

Central zone of an alkaline hyperagpaitic pegmatites. Similar to Li-A(BW) zeolite; structure.

IMA Status:

Approved IMA 2000 (Dana # Added)

Locality:

Khibiny-Lovozero complex, Kola Peninsula, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for Apollon E. Lisitsyn (1928-1999), Russian specialist in B deposits.

Synonym:

IMA2000-008

Lisitsynite Crystallography

Axial Ratios:

a:b:c =0.9547:1:0.4508

Cell Dimensions:

a = 9.963, b = 10.4348, c = 4.7044, Z = 4; V = 489.08 Den(Calc)= 2.74

Crystal System:

Orthorhombic - Disphenoidal H-M Symbol (2 2 2) Space Group: P 2₁2₁2₁

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.282(1)(121,130), 3.495(0.8)(021), 3.944(0.5)(111),2.293(0.4)(012,102), 2.704(0.4)(301,131), 3.149(0.4)(310),

Physical Properties of Lisitsynite

Cleavage:

{010} Good

Color:

Colorless.

Density:

2.74

Diaphaneity:

Transparent

Fracture:

Brittle - Subconchoidal - Brittle frature with subconchoidal fragments

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Granular - Generally occurs as anhedral to subhedral crystals in matrix.

Hardness:

5-6 - Between Apatite and Orthoclase

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Lisitsynite

Gladstone-Dale:

CI meas= 0.005 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2054,KPDmeas= 0.2054,KC= 0.2064
Ncalc = 1.57

Optical Data:

Biaxial (-), a=1.561, b=1.563, g=1.564, bire=0.0030, 2V(Calc)=70, 2V(Meas)=51. Dispersion strong, r > v.

Calculated Properties of Lisitsynite

Electron Density:

Bulk Density (Electron Density)=2.71 gm/cc
note: Specific Gravity of Lisitsynite =2.74 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Lisitsynite= 3.06 barns/electron
U=PE_Lisitsynite x r_electron= 8.30 barns/cc.

Radioactivity:

GRapi = 276.32 (Gamma Ray American Petroleum Institute Units)
Concentration of Lisitsynite per GRapi unit = 0.36 (%)

Estimated Radioactivity from Lisitsynite - barely detectable

Lisitsynite Classification

Dana Class:

76.04.01.01 (76)Tectosilicate Al-Si Framework

(76.04)with B-Si frameworks

(76.04.01)Dana Group

76.04.01.01 Lisitsynite! KBSi2O6 P 2₁2₁2₁ 2 2 2

Strunz Class:

09.FA.25 09 - SILICATES (Germanates)

09.F - Tektosilicates without Zeolitic H2O

09.FA -Tektosilicates without additional non-tetrahedral anions, (Al,B):Si = 1:1

09.FA.25 Lisitsynite! KBSi2O6 P 2₁2₁2₁ 2 2 2

Other Lisitsynite Information

References:

NAME( AmMin, Vol 87, p 181) PHYS. PROP.(AmMin, Vol 87, p 181) OPTIC PROP.(AmMin, Vol 87, p 181)

See Also:

Links to other databases for Lisitsynite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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

Lisitsynite

KBSi2O6
Dana No: 76.04.01.01 Strunz No: 09.FA.25
Locality:

Notes:

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