Souzalite Mineral Data

Souzalite Mineral Data +

[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store]
See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM]
Rare Minerals, Meteorites, Equipment and Analytical Services
Excalibur Mineral Company, World leaders in the supply of rare species
Serving the scientific and collector communities since 1974

General Souzalite Information

Chemical Formula:

(Mg,Fe++)3(Al,Fe+++)4(PO4)4(OH)6·2(H2O)

Composition:

Molecular Weight = 729.00 gm

Magnesium 8.33 % Mg 13.82 % MgO

Aluminum 12.95 % Al 24.48 % Al₂O₃

Iron 7.66 % Fe 4.93 % FeO / 5.48 % Fe₂O₃

Phosphorus 17.00 % P 38.94 % P₂O₅

Hydrogen 1.38 % H 12.36 % H₂O

Oxygen 52.67 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Mg_2.5Fe²⁺_0.5Al_3.5Fe³⁺_0.5(PO₄)₄(OH)₆·2(H₂O)

Environment:

Forms a series with gormanite.

IMA Status:

Valid Species (Pre-IMA) 1949

Locality:

Linopolis district, N of Dimino das Laranjeiras, Minas Gerias, Brazil. Link to MinDat.org Location Data.

Name Origin:

Named for J. A. De Souza (1896-1961), director of Departamento Nacional de Producao Minera, Brazil.

Souzalite Image

Images:

Souzalite

Comments: Blue-gray radial sprays of souzalite in brown siderite.
Location: Rapid Creek, Yukon Territory, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Souzalite Crystallography

Axial Ratios:

a:b:c =2.2974:1:2.6575

Cell Dimensions:

a = 11.74, b = 5.11, c = 13.58, Z = 2; alpha = 90.92°, beta = 99.08°, gamma = 90.33° V = 804.36 Den(Calc)= 3.01

Crystal System:

TriclinicSpace Group: P1,P 1

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

By Intensity(I/I_o): 3.386(1), 2.553(0.9), 2.921(0.8),

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

Le Bail A , Stephens P W , Hubert F , European Journal of Mineralogy , 15 (2003) p.719-723, A crystal structure for the souzalite/gormanite series from synchrotron, powder diffraction data, Locality: Rapid Creek, Yukon, Canada

Physical Properties of Souzalite

Cleavage:

[001] Indistinct, [1] Fair

Color:

Blue green, Dark green.

Density:

3.087

Diaphaniety:

Translucent

Habit:

Crystalline - Coarse - Occurs as well-formed coarse sized crystals.

Habit:

Massive - Fibrous - Distinctly fibrous fine-grained forms.

Hardness:

5.5-6 - Knife Blade-Orthoclase

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Souzalite

Gladstone-Dale:

CI meas= 0.011 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.014 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2117,KPDmeas= 0.2065,KC= 0.2088

Optical Data:

Biaxial (-), a=1.618, b=1.642, g=1.652, bire=0.0340, 2V(Calc)=64, 2V(Meas)=68. Dispersion r > v.

Pleochroism (x):

colorless.

Pleochroism (y):

blue.

Pleochroism (z):

colorless.

Calculated Properties of Souzalite

Electron Density:

r_electron=3.08 gm/cc
note: r_Souzalite=3.09 gm/cc.

Fermion Index

Fermion Index = 0.01021
Boson Index = 0.98979

Photoelectric:

PE_Souzalite= 3.64 barns/electron
U=PE_Souzalite x r_electron= 11.21 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Souzalite is Not Radioactive

Souzalite Classification

Dana Class:

42.9.2.1 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.9)where (A)3 (XO4)2 Zq · x(H2O)

(42.9.2)Dana Group

42.9.2.1 Souzalite (Mg,Fe)3(Al,Fe)4(PO4)4(OH)6·2(H2O) P1,P 1 Tri

42.9.2.2 Gormanite Fe3Al4(PO4)4(OH)6·2(H2O) P1,P 1 Tri

42.9.2.3 Andyrobertsite! KCdCu5(AsO4)4[As(OH)2O2]·2(H2O) P 2₁/m 2/m

42.9.2.4 Calcio-andyrobertsite-1M! KCaCu5(AsO4)4[As(OH)2O2]·2(H2O) P 2₁/m 2/m

42.9.2.5 Calcio-andyrobertsite-2O! KCaCu5(AsO4)4[As(OH)2O2]·2(H2O) P nma 2/m 2/m 2/m

Strunz Class:

VII/D.11-90 VII - Phosphates, Arsenates and Vanadates

VII/D - Water-bearing phosphates with unfamiliar anions, cations of medium size: Cu, Zn, Mn, Al, Fe

VII/D.11 - Strunzite series

VII/D.11-10 Ferrostrunzite FeFe2(PO4)2(OH)2·6(H2O) P 1,P1 Tri

VII/D.11-20 Strunzite MnFe2(PO4)2(OH)2·6(H2O) P1 1

VII/D.11-30 Ferristrunzite FeFe2(PO4)2(OH)3·5(H2O) P1,P 1 Tri

VII/D.11-40 Bermanite MnMn2(PO4)2(OH)2·4(H2O) P 2₁ 2

VII/D.11-50 Cacoxenite (Fe,Al)25(PO4)17O6(OH)12·75(H2O) P 6/mmm 6/m 2/m 2/m

VII/D.11-60 Tinticite Fe5(PO4,VO4)4·7(H2O) P1 1

VII/D.11-70 Beraunite FeFe5(PO4)4(OH)5·4(H2O) C 2/c 2/m

VII/D.11-71 Oxiberaunite* (Fe,Mn)Fe5(PO4)4O(OH)4·6(H2O) Mono

VII/D.11-90 Souzalite (Mg,Fe)3(Al,Fe)4(PO4)4(OH)6·2(H2O) P1,P 1 Tri

VII/D.11-100 Gormanite Fe3Al4(PO4)4(OH)6·2(H2O) P1,P 1 Tri

VII/D.11-110 Dufrenite FeFe4(PO4)3(OH)5·2(H2O) C 2/c 2/m

VII/D.11-120 Burangaite (Na,Ca)2(Fe,Mg)2Al10(PO4)8(OH,O)12·4(H2O) C 2/c 2/m

VII/D.11-130 Natrodufrenite Na(Fe,Fe)(Fe,Al)5(PO4)4(OH)6·2(H2O) C 2/c 2/m

VII/D.11-135 Ercitite! Na(Mn,Fe)(PO4)(OH)·2(H2O) P 2₁/n 2/m

VII/D.11-140 Kidwellite Na(Fe,Cu)9x(PO4)6(OH)11·3(H2O) P 2/c 2/m

VII/D.11-150 Meurigite! KFe7(PO4)5(OH)7·8(H2O) C 2,Cm,C 2/m Mono

Other Souzalite Information

References:

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

See Also:

Links to other databases for Souzalite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

Search for Souzalite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Souzalite :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Souzalite Mineral Data :

Ask about Souzalite 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 Español

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

Souzalite

(Mg,Fe++)3(Al,Fe+++)4(PO4)4(OH)6·2(H2O)
Dana No: 42.9.2.1 Strunz No: VII/D.11-90
Locality:

Notes: