Pachnolite Mineral Data (original) (raw)

General Pachnolite Information

Help on Chemical Formula: Chemical Formula:

NaCaAlF6•(H2O)

Help on Composition: Composition:

Molecular Weight = 222.06 gm

Sodium 10.35 % Na 13.96 % Na2O

Calcium 18.05 % Ca 25.25 % CaO

Aluminum 12.15 % Al 22.96 % Al2O3

Hydrogen 0.91 % H 8.11 % H2O

Oxygen 7.21 % O

Fluorine 51.33 % F 51.33 % F

- % F -21.62 % -O=F2

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

NaCaAlF6•(H2O)

Help on Environment: Environment:

Alteration product of cryolite.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1863

Help on Locality: Locality:

Greenland, Ural Mountains, Russia. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named from the Greek for frost and stone, in allusion to its appearance.

Help on Name Pronunciation: Name Pronunciation:

Pachnolite + Pronunciation Say PACHNOLITE

Help on Synonym: Synonym:

ICSD 40132

PDF 5-356

Pachnolite Image

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Pachnolite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =1.1638:1:1.5056

Help on Cell Dimensions: Cell Dimensions:

a = 12.12, b = 10.414, c = 15.68, Z = 16; beta = 90.36° V = 1,979.05 Den(Calc)= 2.98

Help on Crystal System: Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: F2/d

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.95(1), 1.971(0.9), 2.79(0.7),

Help on Forms: Forms:

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| | Forms:( 2 2 1) ( 1 1 1) ( 1 1 0) Warning: this large pop-up is very compute intensive and may not work well with some computers. | | --------------------------------------------------------------------------------------------------------------------------------------------------- |

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| | Hawthorne F C , Ferguson R B , The Canadian Mineralogist , 21 (1983) p.561-566, The crystal structure of pachnolite | | ---------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Pachnolite

Help on Cleavage: Cleavage:

{001} Poor

Help on Color: Color:

Colorless, White.

Help on Density: Density:

2.98

Help on Diaphaneity: Diaphaneity:

Transparent

Help on Fracture: Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Help on Habit: Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Help on Habit: Habit:

Pseudo Orthorhombic - Crystals show an orthorhombic shape.

Help on Habit: Habit:

Twinning Common - Crystals are usually twinned.

Help on Hardness: Hardness:

3 - Calcite

Help on Luminescence: Luminescence:

Non-fluorescent.

Help on Luster: Luster:

Vitreous - Greasy

Help on Magnetism: Magnetism:

Nonmagnetic

Help on Streak: Streak:

white

Optical Properties of Pachnolite

Help on Optical Data: Optical Data:

Biaxial (+), a=1.411, b=1.413, g=1.42, bire=0.0090

Calculated Properties of Pachnolite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.90 gm/cc
note: Specific Gravity of Pachnolite =2.98 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0002796037
Boson Index = 0.9997203963

Help on Photoelectric: Photoelectric:

PEPachnolite = 3.06 barns/electron
U=PEPachnolite x rElectron Density= 8.87 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Pachnolite is Not Radioactive

Pachnolite Classification

Help on Dana Class: Dana Class:

11.06.05.01 (11)Halide Complexes; Alumino-fluorides

(11.06)with miscellaneous formulae

(11.06.05)Dana Group

11.06.05.01 Pachnolite NaCaAlF6•(H2O) F2/d 2/m

Help on Strunz Class: Strunz Class:

03.CB.40 03 - HALIDES

03.C - Complex Halides

03.CB -Neso-aluminofluorides

03.CB.40 Pachnolite NaCaAlF6•(H2O) F2/d 2/m

03.CB.40 Thomsenolite NaCaAlF6•(H2O) P 21/c 2/m

Other Pachnolite Information

Help on References: References:

NAME( Ford32) 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 Pachnolite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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Ask about Pachnolite here :
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Print or Cut-and-Paste your Pachnolite Specimen Label here :

Pachnolite

NaCaAlF6•(H2O)
Dana No: 11.06.05.01 Strunz No: 03.CB.40
Locality:

Notes: