![]() |
Polylithionite Mineral Data |
General Polylithionite Information |
|||
![]() |
KLi2AlSi4O10(F,OH)2 | ||
![]() |
Molecular Weight = 393.12 gm | ||
Potassium 9.95 % K 11.98 % K2O | |||
Sodium 1.75 % Na 2.36 % Na2O | |||
Lithium 3.00 % Li 6.46 % Li2O | |||
Aluminum 6.86 % Al 12.97 % Al2O3 | |||
Silicon 28.58 % Si 61.14 % SiO2 | |||
Hydrogen 0.26 % H 2.29 % H2O | |||
Oxygen 44.77 % O | |||
Fluorine 4.83 % F 4.83 % F | |||
- % F -2.03 % -O=F2 | |||
______ ______ | |||
100.00 % 100.00 % = TOTAL OXIDE | |||
![]() |
KLi1.7Na0.3AlSi4O10F(OH) | ||
![]() |
In syenite pegmatites in differentiated alkalic rocks. | ||
![]() |
Valid Species (Pre-IMA) 1884 | ||
![]() |
Ilimaussaq intrusion, southern Greenland. Link to MinDat.org Location Data. | ||
![]() |
From the Greek "ploy" for many or much, and in allusion to its high LITHIum content. | ||
![]() |
Polylithionite + Pronunciation ![]() |
||
![]() |
ICSD 34336 (with F) | ||
PDF 21952 | |||
Polylithionite Image | |||
![]() |
|
||
![]() |
|
||
Polylithionite Crystallography |
|||
![]() |
a:b:c =0.5782:1:1.1183 | ||
![]() |
a = 5.186, b = 8.968, c = 10.029, Z = 2; beta = 100.4° V = 458.77 Den(Calc)= 2.85 | ||
![]() |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m | ||
![]() |
By Intensity(I/Io): 3.07(1), 3.31(1), 3.59(1), | ||
Physical Properties of Polylithionite |
|||
![]() |
{001} Perfect | ||
![]() |
Bluish, Colorless, Violet, Greenish, Pearl white. | ||
![]() |
2.58 - 2.82, Average = 2.7 | ||
![]() |
Transparent | ||
![]() |
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. | ||
![]() |
Pseudo Hexagonal - Crystals show a hexagonal outline. | ||
![]() |
Scaly - Morphology like fish scales. | ||
![]() |
Tabular - Form dimensions are thin in one direction. | ||
![]() |
2-3 - Gypsum-Calcite | ||
![]() |
Fluorescent, Short UV=an yellow-lemon. | ||
![]() |
Pearly | ||
![]() |
white | ||
Optical Properties of Polylithionite |
|||
![]() |
CI meas= 0.044 (Good) - where the CI = (1-KPDmeas/KC) CI calc= 0.094 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1919,KPDmeas= 0.2025,KC= 0.2119 Ncalc = 1.55 - 1.6 |
||
![]() |
Biaxial (-), a=1.53, b=1.551-1.556, g=1.555-1.559, bire=0.0250-0.0290 | ||
![]() |
colorless. | ||
![]() |
colorless. | ||
Calculated Properties of Polylithionite |
|||
![]() |
Bulk Density (Electron Density)=2.67 gm/cc note: Specific Gravity of Polylithionite =2.70 gm/cc. |
||
![]() |
Fermion Index = 0.01 Boson Index = 0.99 |
||
![]() |
PEPolylithionite = 2.37 barns/electron U=PEPolylithionite x relectron= 6.33 barns/cc. |
||
![]() |
GRapi = 141.95 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Polylithionite |
||
Polylithionite Classification |
|||
![]() |
71.02.02b.08 (71)Phyllosilicate Sheets of Six-Membered Rings | ||
(71.02)with 2:1 Layers | |||
(71.02.02b)Mica Group (Biotite subgroup) | |||
![]() |
09.EC.20 09 - SILICATES (Germanates) | ||
09.E - Phyllosilicates | |||
09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets | |||
Other Polylithionite Information |
|||
![]() |
Links to other databases for Polylithionite : 1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 - Am. Min. Crystal Structure Database 4 - Amethyst Galleries' Mineral Gallery 5 - Athena 6 - EUROmin Project 7 - Ecole des Mines de Paris 8 - GeoScienceWorld 9 - Google Images 10 - Google Scholar 11 - Handbook of Mineralogy (MinSocAm) 12 - Handbook of Mineralogy (UofA) 13 - MinDAT 14 - Mineralienatlas (Deutsch) 15 - Online Mineral Museum 16 - QUT Mineral Atlas 17 - Ruff.Info Search for Polylithionite using: Visit our Advertisers for Polylithionite : Ask about Polylithionite here : Print or Cut-and-Paste your Polylithionite Specimen Label here :
|
||
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.