Khademite Mineral Data (original) (raw)

General Khademite Information

Help on Chemical Formula: Chemical Formula:

Al(SO4)F•5(H2O)

Help on Composition: Composition:

Molecular Weight = 232.12 gm

Aluminum 11.62 % Al 21.96 % Al2O3

Hydrogen 4.34 % H 38.81 % H2O

Sulfur 13.81 % S 34.49 % SO3

Oxygen 62.03 % O

Fluorine 8.18 % F 8.18 % F

- % F -3.45 % -O=F2

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Al(SO4)F•5(H2O)

Help on Environment: Environment:

Post mine efflorescence.

Help on IMA Status: IMA Status:

Approved IMA 1973

Help on Locality: Locality:

Lone Pine mine, Catron County, New Mexico, USA. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for N. Khadem, (b1910), director, Geological Survey of Iran.

Help on Name Pronunciation: Name Pronunciation:

Khademite + Pronunciation Say KHADEMITE

Help on Synonym: Synonym:

ICSD 41562

PDF 26-1011

Khademite Image

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

Khademite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =0.8569:1:0.8342

Help on Cell Dimensions: Cell Dimensions:

a = 11.181, b = 13.048, c = 10.885, Z = 8; V = 1,588.01 Den(Calc)= 1.94

Help on Crystal System: Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pcab

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 4.247(1), 4.179(0.7), 2.73(0.6),

Click Here for Large Khademite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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I - Data Info
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Help on Above

| | Bachet B , Cesbron F , Chevalier R , Bulletin de Mineralogie , 104 (1981) p.19-22, Structure cristalline de la khademite Al(SO4)F*5H2O | | ------------------------------------------------------------------------------------------------------------------------------------------ |

Physical Properties of Khademite

Help on Cleavage: Cleavage:

None

Help on Color: Color:

Colorless, White.

Help on Density: Density:

1.942

Help on Diaphaneity: Diaphaneity:

Transparent

Help on Habit: Habit:

Efflorescences - Crystals covering matrix, generally produced from transpiro-evaporation.

Help on Habit: Habit:

Encrustations - Forms crust-like aggregates on matrix.

Help on Hardness: Hardness:

1-2 - Between Talc and Gypsum

Help on Streak: Streak:

white

Optical Properties of Khademite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.017 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.016 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2383,KPDmeas= 0.2381,KC= 0.2423
Ncalc = 1.47

Help on Optical Data: Optical Data:

Biaxial (-), a=1.44, b=1.46, g=1.487, bire=0.0470, 2V(Calc)=84, 2V(Meas)=68.

Calculated Properties of Khademite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.01 gm/cc
note: Specific Gravity of Khademite =1.94 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0013403601
Boson Index = 0.9986596399

Help on Photoelectric: Photoelectric:

PEKhademite = 1.32 barns/electron
U=PEKhademite x rElectron Density= 2.64 barns/cc.

Help on Radioactivity: Radioactivity:

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

Khademite Classification

Help on Dana Class: Dana Class:

31.09.11.01 (31)Hydrated Sulfates Containing Hydroxyl or Halogen

(31.09)where (A+ B++) (XO4) Zq�x(H2O)

(31.09.11)Dana Group

31.09.11.01 Khademite Al(SO4)F•5(H2O) Pcab 2/m 2/m 2/m

31.09.11.02 Rostite AlSO4(OH,F)•5(H2O) Pcba 2/m 2/m 2/m

Help on Strunz Class: Strunz Class:

07.DB.10 07 - SULFATES (SELENATES, TELLURATES)

07.D - Sulfates (selenates, etc.) with additional anions, with H2O

07.DB -With only medium-sized cations; insular octahedra and finite groups

07.DB.10 Khademite Al(SO4)F•5(H2O) Pcab 2/m 2/m 2/m

07.DB.10 Rostite AlSO4(OH,F)•5(H2O) Pcba 2/m 2/m 2/m

Other Khademite Information

Help on References: References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

Help on See Also: See Also:

Links to other databases for Khademite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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

Khademite

Al(SO4)F•5(H2O)
Dana No: 31.09.11.01 Strunz No: 07.DB.10
Locality:

Notes: