Rozenite Mineral Data

Rozenite Mineral Data +

General Rozenite Information

Chemical Formula:

Fe++SO4·4(H2O)

Composition:

Molecular Weight = 223.97 gm

Iron 24.93 % Fe 32.08 % FeO

Hydrogen 3.60 % H 32.17 % H₂O

Sulfur 14.32 % S 35.75 % SO₃

Oxygen 57.15 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Fe²⁺(SO₄)·4(H₂O)

IMA Status:

Approved IMA 1960

Locality:

Link to MinDat.org Location Data.

Synonym:

ICSD 23912

PDF 19-632

Rozenite Image

Images:

Rozenite Ferrinatrite Copiapite

Comments: White powdery rozenite coating with yellow ferrinatrite on purple copiapite.
Location: Le Cetine Mine, Siena, Tuscany, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Rozenite Crystallography

Axial Ratios:

a:b:c =0.4374:1:0.5842

Cell Dimensions:

a = 5.945, b = 13.59, c = 7.94, Z = 4; beta = 90.5° V = 641.47 Den(Calc)= 2.32

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/n

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 4.47(1), 5.46(0.9), 3.97(0.7),

Crystal Structure:

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drag2 - RMB Resize/Rotate
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I - Data Info
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Baur W H , Acta Crystallographica , 15 (1962) p.815-826, Zur kristallchemie der salzhydrate. Die kristallstrukturen von MgSO4*4H2O, (leonhardtit) und FeSO4*4H2O (rozenit), Locality: synthetic

Physical Properties of Rozenite

Color:

Colorless, Greenish, Greenish white, Yellowish white, White.

Density:

2.195

Diaphaniety:

Transparent to Translucent

Hardness:

2-3 - Gypsum-Calcite

Luster:

Earthy (Dull)

Streak:

white

Optical Properties of Rozenite

Gladstone-Dale:

CI meas= -0.047 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.009 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2308,KPDmeas= 0.244,KC= 0.233

Optical Data:

Biaxial (-), a=1.526-1.528, b=1.536-1.537, g=1.541-1.545, bire=0.0150-0.0170, 2V(Calc)=70-86, 2V(Meas)=90.

Calculated Properties of Rozenite

Electron Density:

r_electron=2.36 gm/cc
note: r_Rozenite=2.32 gm/cc.

Fermion Index

Fermion Index = 0.00663
Boson Index = 0.99337

Photoelectric:

PE_Rozenite= 8.09 barns/electron
U=PE_Rozenite x r_electron= 19.10 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Rozenite is Not Radioactive

Rozenite Classification

Dana Class:

29.6.6.1 (29)Hydrated Acid and Sulfates

(29.6)where A XO4 · x(H2O)

(29.6.6)Rozenite Group (Monoclinic)

29.6.6.1 Rozenite FeSO4·4(H2O) P 2₁/n 2/m

29.6.6.2 Starkeyite MgSO4·4(H2O) P 2₁/n 2/m

29.6.6.3 Ilesite (Mn,Zn,Fe)SO4·4(H2O) P 2₁/n 2/m

29.6.6.4 Aplowite (Co,Mn,Ni)SO4·4(H2O) P 2₁/m 2/m

29.6.6.5 Boyleite (Zn,Mg)SO4·4(H2O) P 2₁/n 2/m

29.6.6.6 IMA2002-034! CdSO4·4(H2O) P 2₁/n 2/m

Strunz Class:

VI/C.03-20 VI - Sulfates,Chromates,Molybdates and Tungstates

VI/C - Water-bearing sulfates without unfamiliar anions. cations of medium size

VI/C.03 - Rozenite series, Starkeyite - Boyleite

VI/C.03-10 Starkeyite MgSO4·4(H2O) P 2₁/n 2/m

VI/C.03-20 Rozenite FeSO4·4(H2O) P 2₁/n 2/m

VI/C.03-30 Ilesite (Mn,Zn,Fe)SO4·4(H2O) P 2₁/n 2/m

VI/C.03-40 Aplowite (Co,Mn,Ni)SO4·4(H2O) P 2₁/m 2/m

VI/C.03-50 Boyleite (Zn,Mg)SO4·4(H2O) P 2₁/n 2/m

Other Rozenite Information

References:

PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

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

Rozenite

Fe++SO4·4(H2O)
Dana No: 29.6.6.1 Strunz No: VI/C.03-20
Locality:

Notes: