Retgersite Mineral Data (original) (raw)

General Retgersite Information

Help on Chemical Formula: Chemical Formula:

NiSO4•6(H2O)

Help on Composition: Composition:

Molecular Weight = 262.85 gm

Nickel 22.33 % Ni 28.42 % NiO

Hydrogen 4.60 % H 41.12 % H2O

Sulfur 12.20 % S 30.46 % SO3

Oxygen 60.87 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Ni(SO4)•6(H2O)

Help on Environment: Environment:

Oxidization zone of nickel-bearing hydrothermal mineral deposits, formed from H2O solution between 31.5 deg C and 53.5 deg C. Dimorphous with nickelhexahydrite.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1949

Help on Locality: Locality:

Cottonwood Canyon, Nevada. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Jan Willem Retgers (1856-1896), Dutch physical chemist and chemical crystallographer.

Help on Name Pronunciation: Name Pronunciation:

Retgersite + Pronunciation Say RETGERSITE

Help on Synonym: Synonym:

ICSD 62051

PDF 47-1811

Retgersite Image

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Retgersite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:2.69537

Help on Cell Dimensions: Cell Dimensions:

a = 6.782, c = 18.28, Z = 4; V = 840.80 Den(Calc)= 2.08

Help on Crystal System: Crystal System:

Tetragonal - TrapezohedralH-M Symbol (4 2 2) Space Group: P 41212,P 43212

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 4.25(1), 4.57(0.4), 2.964(0.2),

Help on Forms: Forms:

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

Click Here for Large Retgersite Structure Window Crystal Structure:

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| | Beevers C A , Lipson H , Zeitschrift fur Kristallographie , 83 (1932) p.123-135, The crystal structure of nickel sulphate hexahydrate NiSO4 * 6H2O, Locality: synthetic | | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Retgersite

Help on Cleavage: Cleavage:

{001} Perfect

Help on Color: Color:

Dark green.

Help on Density: Density:

2.07

Help on Fracture: Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Help on Hardness: Hardness:

2.5 - Finger Nail

Help on Luster: Luster:

Vitreous (Glassy)

Help on Streak: Streak:

greenish white

Optical Properties of Retgersite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.011 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.016 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.24,KPDmeas= 0.2411,KC= 0.2437
Ncalc = 1.5 - 1.51

Help on Optical Data: Optical Data:

Uniaxial (-), e=1.4873, w=1.5109, bire=0.0236.

Calculated Properties of Retgersite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.14 gm/cc
note: Specific Gravity of Retgersite =2.07 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0037371925
Boson Index = 0.9962628075

Help on Photoelectric: Photoelectric:

PERetgersite = 9.24 barns/electron
U=PERetgersite x rElectron Density= 19.80 barns/cc.

Help on Radioactivity: Radioactivity:

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

Retgersite Classification

Help on Dana Class: Dana Class:

29.06.09.01 (29)Hydrated Acid and Sulfates

(29.06)where A XO4 � x(H2O)

(29.06.09)Dana Group

29.06.09.01 Retgersite NiSO4•6(H2O) P 41212,P 43212 4 2 2

Help on Strunz Class: Strunz Class:

07.CB.30 07 - SULFATES (SELENATES, TELLURATES)

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

07.CB -With only medium-sized cations

07.CB.30 Retgersite NiSO4•6(H2O) P 41212,P 43212 4 2 2

Other Retgersite Information

Help on References: References:

NAME( AntBidBlaNic5) 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 Retgersite :
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

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

Retgersite

NiSO4•6(H2O)
Dana No: 29.06.09.01 Strunz No: 07.CB.30
Locality:

Notes: