Priderite Mineral Data (original) (raw)

General Priderite Information

Help on Chemical Formula: Chemical Formula:

(K,Ba)(Ti,Fe+++)8O16

Help on Composition: Composition:

Molecular Weight = 715.42 gm

Potassium 4.92 % K 5.92 % K2O

Barium 5.76 % Ba 6.43 % BaO

Sodium 0.32 % Na 0.43 % Na2O

Titanium 43.50 % Ti 72.57 % TiO2

Aluminum 1.13 % Al 2.14 % Al2O3

Iron 8.59 % Fe 12.28 % Fe2O3

Oxygen 35.78 % O

______ ______

100.00 % 99.78 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

K0.9Ba0.3Na0.1Ti6.5Fe3+1.1Al0.3O16

Help on Environment: Environment:

In some ultrapotassic lamproites, ultramafics and carbonatites.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1951

Help on Locality: Locality:

Wolgidee Hills and the Argyle diamond mine, Kimberley District, Western Australia. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Rex Tregilgas Prider (1910-), Professor of Geology, University of Western Australia.

Help on Name Pronunciation: Name Pronunciation:

Priderite + Pronunciation Say PRIDERITE

Help on Synonym: Synonym:

ICSD 50764

PDF 6-296

Priderite Image

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

Click Here for Larger Priderite Image Priderite Comments: Clusters of sub-mm black, opaque crystals of priderite. Location: Eveslogchorr Mt., Khibiny, Kola, Russia.Scale: 2.5 x 3.4 cm. © John Veevaert

Priderite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:0.29317

Help on Cell Dimensions: Cell Dimensions:

a = 10.11, c = 2.964, Z = 1; V = 302.96 Den(Calc)= 3.92

Help on Crystal System: Crystal System:

Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: I 4/m

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.2(1), 5.05(0.7), 7.14(0.7),

Click Here for Large Priderite Structure Window Crystal Structure:

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drag1 - LMB Manipulate Structure
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| | Post J E , Von Dreele R B , Buseck P R , Acta Crystallographica, Section B , 38 (1982) p.1056-1065, Symmetry and cation displacements in hollandites:, structure refinements of hollandite, cryptomelane and priderite, Locality: West Kimberley, Australia, Note: Anisotropic displacement factors from ICSD | | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Priderite

Help on Cleavage: Cleavage:

{001} Perfect, {hk0} Fair

Help on Color: Color:

Reddish, Reddish black, Black.

Help on Density: Density:

3.86

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Fracture: Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Help on Habit: Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Help on Habit: Habit:

Tabular - Form dimensions are thin in one direction.

Help on Hardness: Hardness:

7 - Quartz

Help on Luster: Luster:

Adamantine

Help on Magnetism: Magnetism:

Weakly paramagnetic

Help on Streak: Streak:

gray

Optical Properties of Priderite

Help on Dichroism (e): Dichroism (e):

black or deep reddish brown.

Help on Dichroism (w): Dichroism (w):

deep reddish brown.

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.183 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.196 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2806,KPDmeas= 0.285,KC= 0.349
Ncalc = 2.35 - 2.37

Help on Optical Data: Optical Data:

Uniaxial (-), w=2.1.

Calculated Properties of Priderite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=3.65 gm/cc
note: Specific Gravity of Priderite =3.86 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.06
Boson Index = 0.94

Help on Photoelectric: Photoelectric:

PEPriderite = 34.90 barns/electron
U=PEPriderite x relectron= 127.49 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 67.14 (Gamma Ray American Petroleum Institute Units)
Concentration of Priderite per GRapi unit = 1.49 (%)

Estimated Radioactivity from Priderite - barely detectable

Priderite Classification

Help on Dana Class: Dana Class:

07.09.04.01 (07)Multiple Oxides

(07.09)Dana Type

(07.09.04)Dana Group

07.09.04.01 Priderite (K,Ba)(Ti,Fe)8O16 I 4/m 4/m

07.09.04.02 Ankangite Ba(Ti,V,Cr)8O16 I 4/m 4/m

Help on Strunz Class: Strunz Class:

04.DK.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.D - Metal:Oxygen = 1:2 and similar

04.DK -With large (� medium-sized) cations; tunnel structures

04.DK.05 Akaganeite Fe(O,OH,Cl) I2/m 2/m

04.DK.05 Ankangite Ba(Ti,V,Cr)8O16 I 4/m 4/m

04.DK.05 Coronadite Pb(Mn,Mn)8O16 I2/m 2/m

04.DK.05 Hollandite Ba(Mn,Mn)8O16 I2/m 2/m

04.DK.05 Manjiroite (Na,K)(Mn,Mn)8O16•n(H2O) I 4/m 4/m

04.DK.05 Mannardite BaTi6V2O16•(H2O) I 41/a 4/m

04.DK.05 Redledgeite BaTi6Cr2O16•(H2O) I 41/a 4/m

04.DK.05 Priderite (K,Ba)(Ti,Fe)8O16 I 4/m 4/m

04.DK.05 Henrymeyerite! BaFeTi7O16 I 4/m 4/m

Other Priderite Information

Help on References: References:

NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)

Help on See Also: See Also:

Links to other databases for Priderite :
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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Print or Cut-and-Paste your Priderite Specimen Label here :

Priderite

(K,Ba)(Ti,Fe+++)8O16
Dana No: 07.09.04.01 Strunz No: 04.DK.05
Locality:

Notes: