Ferrazite Mineral Data

General Ferrazite Information

Chemical Formula:

(Pb,Ba)3(PO4)2•8(H2O) (?)

Composition:

Molecular Weight = 903.26 gm

Barium 11.40 % Ba 12.73 % BaO

Phosphorus 6.86 % P 15.71 % P₂O₅

Hydrogen 1.79 % H 15.96 % H₂O

Lead 51.61 % Pb 55.60 % PbO

Oxygen 28.34 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

3(Pb_0.75)3(Ba_0.25)(PO₄)₂•8(H₂O)

Environment:

Fava pebble concretions.

IMA Status:

Discredited IMA 1996

Locality:

Found in the Brazilian diamond deposits near Diamantina, Brazil Link to MinDat.org Location Data.

Name Origin:

Named in 1919 for Jorge Palmiro de Araujo Ferraz (1883-1926) of the Geological Survey of Brazil.

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Ferrazite Crystallography

Crystal System:

Triclinic

Optical Properties of Ferrazite

Optical Data:

Calculated Properties of Ferrazite

Fermion Index:

Fermion Index = 0.13
Boson Index = 0.87

Photoelectric:

PE_Ferrazite= 945.43 barns/electron
U=PE_Ferrazite x rElectron Density= . barns/cc.

Radioactivity:

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

Ferrazite Classification

Dana Class:

40.03.13.01 (40)Hydrated Phosphates, etc

(40.03)where (A++)3 (XO4)2 · x(H2O)

(40.03.13)Dana Group

40.03.13.01 Ferrazite? (Pb,Ba)3(PO4)2•8(H2O)(?) Tri

Strunz Class:

08.BL.10 08 - PHOSPHATES, ARSENATES, VANADATES

08.B - Phosphates, etc. with Additional Anions, without H2O

08.BL -With medium-sized and large cations, (OH, etc.):RO4 = 3:1

08.BL.10 Arsenogorceixite! BaAl3AsO3(OH)(AsO4,PO4)(OH,F)6 R 3m 3 2/m

08.BL.10 Arsenocrandallite (Ca,Sr)Al3[(As,P)O4]2(OH)5•(H2O) R 3m 3m

08.BL.10 Ferrazite? (Pb,Ba)3(PO4)2•8(H2O)(?) Tri

08.BL.10 Arsenowaylandite* BiAl3(AsO4)2(OH)6 R 3m 3 2/m

08.BL.10 Benauite! HSrFe3(PO4)2(OH)6 R 3m 3 2/m

08.BL.10 Arsenogoyazite (Sr,Ca,Ba)Al3(AsO4,PO4)2(OH,F)5•(H2O) R 3m 3 2/m

08.BL.10 Dussertite BaFe3(AsO4)2(OH)5 R 3m 3m

08.BL.10 Crandallite CaAl3(PO4)2(OH)5•(H2O) R 3m 3 2/m

08.BL.10 Goyazite SrAl3(PO4)2(OH)5•(H2O) R 3m 3 2/m

08.BL.10 Gorceixite BaAl3(PO4)(PO3OH)(OH)6 R 3m 3 2/m

08.BL.10 Kintoreite PbFe3(PO4)2(OH,H2O)6 R 3m 3 2/m

08.BL.10 Lusungite? (Sr,Pb)Fe3(PO4)2(OH)5•(H2O) R 3m 3m

08.BL.10 Philipsbornite PbAl3(AsO4)2(OH)5•(H2O) R 3m-,R 3m Trig

08.BL.10 Plumbogummite PbAl3(PO4)2(OH)5•(H2O) R 3m 3 2/m

08.BL.10 Segnitite PbFe3H(AsO4)2(OH)6 R 3m 3 2/m

08.BL.10 Springcreekite! BaV3(PO4)2(OH,H2O)6 R 3m 3 2/m

Other Ferrazite Information

References:

NAME( Dana8)

See Also:

Links to other databases for Ferrazite :
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 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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

Ferrazite

(Pb,Ba)3(PO4)2•8(H2O) (?)
Dana No: 40.03.13.01 Strunz No: 08.BL.10
Locality:

Notes: