Pertlikite Mineral Data (original) (raw)

General Pertlikite Information

Help on Chemical Formula: Chemical Formula:

K2(Fe++,Mg)2(Mg,Fe+++)4Fe+++2Al(SO4)12•18H2O

Help on Composition: Composition:

Molecular Weight = 1,933.91 gm

Potassium 4.00 % K 4.82 % K2O

Sodium 0.01 % Na 0.02 % Na2O

Magnesium 3.78 % Mg 6.27 % MgO

Manganese 0.77 % Mn 0.99 % MnO

Aluminum 1.40 % Al 2.64 % Al2O3

Zinc 0.03 % Zn 0.04 % ZnO

Iron 13.63 % Fe 4.20 % FeO / 14.82 % Fe2O3

Hydrogen 1.88 % H 16.77 % H2O

Sulfur 19.90 % S 49.68 % SO3

Oxygen 54.60 % O

______ ______

100.00 % 100.25 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

K1.98Na0.01Fe2+1.13Mg0.49Mn2+0.27Fe3+0.1Zn0.01Mg2.52Fe3+1.49Fe3+2Al(SO4)12�18(H2O)

Help on Environment: Environment:

Occurs in a pyrite-bearing trachytic eruptive rock, and probably formed after the decomposition of pyrite. Voltaite group.

Help on IMA Status: IMA Status:

Approved IMA 2005 (Dana # Added)

Help on Locality: Locality:

Madeni Zakh, Iran. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Franz Pertlik, Professor of Mineralogy and Crystallography, University of Vienna, Austria.

Help on Synonym: Synonym:

IMA2005-055

Pertlikite Image

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

Click Here for Larger Pertlikite Image Pertlikite Comments: B&W image of dark olive green to black crystal of pertlikite from the type material. (AmMin, v46:661). Location: Madeni Zakh, Iran.Scale: Crystal size 1 mm. © Canadian Mineralogist

Pertlikite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:1.41689

Help on Cell Dimensions: Cell Dimensions:

a = 19.208, c = 27.2158, Z = 8; V = 10,041.19 Den(Calc)= 2.56

Help on Crystal System: Crystal System:

Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 41/acd

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.396(1), 2.848(0.31), 2.078(0.29),5.543(0.28), 1.601(0.21), 2.534(0.21), 3.136(0.21),

Click Here for Large Pertlikite 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

| | Ertl A , Dyar M D , Hughes J M , Brandstatter F , Gunter M E , Prem M , Peterson R C , The Canadian Mineralogist , 46 (2008) p.661-669, Pertlikite, a new tetragonal Mg-rich member of the voltaite group from Madeni Zakh, Iran, Locality: Madeni Zakh, Iran | | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Pertlikite

Help on Cleavage: Cleavage:

None

Help on Color: Color:

Dark olive green, Black.

Help on Density: Density:

2.59

Help on Diaphaneity: Diaphaneity:

Translucent

Help on Fracture: Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Help on Habit: Habit:

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

Help on Luster: Luster:

Vitreous (Glassy)

Optical Properties of Pertlikite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.009 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.003 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2297,KPDmeas= 0.227,KC= 0.229
Ncalc = 1.59

Help on Optical Data: Optical Data:

Uniaxial (-), e=1.586, w=1.59, bire=0.0040.

Calculated Properties of Pertlikite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.58 gm/cc
note: Specific Gravity of Pertlikite =2.56 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0084483998
Boson Index = 0.9915516002

Help on Photoelectric: Photoelectric:

PEPertlikite = 5.92 barns/electron
U=PEPertlikite x relectron= 15.25 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 58.10 (Gamma Ray American Petroleum Institute Units)
Concentration of Pertlikite per GRapi unit = 1.72 (%)

Estimated Radioactivity from Pertlikite - barely detectable

Pertlikite Classification

Help on Dana Class: Dana Class:

29.09.01.03 (29)Hydrated Acid and Sulfates

(29.09)with miscellaneous formulae

(29.09.01)Voltaite Group

29.09.01.01 Voltaite K2Fe5Fe3Al(SO4)12•18(H2O) F d3c 4/m 3 2/m

29.09.01.02 Zincovoltaite K2Zn5Fe3Al(SO4)12•18(H2O) F d3c 4/m 3 2/m

29.09.01.03 Pertlikite! K2(Fe,Mg)2(Mg,Fe)4Fe2Al(SO4)12•18H2O I 41/acd 4/m 2/m 2/m

Help on Strunz Class: Strunz Class:

07.CC.25 07 - SULFATES (SELENATES, TELLURATES)

07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O

07.CC -With medium-sized and large cations

07.CC.25 Monsmedite? H8K2Tl2(SO4)8•11(H2O) F d3c 4/m 3 2/m

07.CC.25 Voltaite K2Fe5Fe3Al(SO4)12•18(H2O) F d3c 4/m 3 2/m

07.CC.25 Zincovoltaite K2Zn5Fe3Al(SO4)12•18(H2O) F d3c 4/m 3 2/m

07.CC.25 Pertlikite! K2(Fe,Mg)2(Mg,Fe)4Fe2Al(SO4)12•18H2O I 41/acd 4/m 2/m 2/m

Other Pertlikite Information

Help on References: References:

NAME( AmMin, v46:661) PHYS. PROP.(AmMin, v46:661) OPTIC PROP.(AmMin, v46:661)

Help on See Also: See Also:

Links to other databases for Pertlikite :
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

Search for Pertlikite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Pertlikite :

A Bijoux Google Search for Pertlikite
Adam's Minerals Google Search for Pertlikite
Cape Minerals Google Search for Pertlikite
Dakota Matrix Minerals Google Search for Pertlikite
Excalibur Mineral Corp. Google Search for Pertlikite
Exceptional Minerals Google Search for Pertlikite
John Betts Fine Minerals Search for Pertlikite
McDougall Minerals Google Search for Pertlikite
Mineral News Website Link
Rock and Mineral Shows Google Search for Pertlikite
Weinrich Minerals, Inc. Google Search for Pertlikite

Ask about Pertlikite 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 Espa�ol

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

Pertlikite

K2(Fe++,Mg)2(Mg,Fe+++)4Fe+++2Al(SO4)12•18H2O
Dana No: 29.09.01.03 Strunz No: 07.CC.25
Locality:

Notes: