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Priderite

Pictures (3 Images total)

Priderit
Views (File:
1477599995
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Priderit
Graulai, Hillesheim, Eifel. BB 0,9mm.
Copyright: Mabu; Contribution: Mabu
Collection: Mabu
Location: Deutschland/Rheinland-Pfalz/Vulkaneifel, Landkreis/Gerolstein, Verbandsgemeinde/Hillesheim/Steinbruch Stolz (Graulai; Graulay)
Mineral: Priderite
Image: 1477599995
License: Usage for Mineralienatlas project only
Priderit

Graulai, Hillesheim, Eifel. BB 0,9mm.
Collection: Mabu
Copyright: Mabu
Contribution: Mabu 2016-10-27
Locality: Steinbruch Stolz (Graulai; Graulay) / Hillesheim / Gerolstein, Verbandsgemeinde / Vulkaneifel, Landkreis / Rheinland-Pfalz / Deutschland
Priderit vom Mirador de la Centinela, Teneriffa
Views (File:
1544442915
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Priderit vom Mirador de la Centinela, Teneriffa
Schwarze Prismen mit gelbgrünem Klinozoisit. Bildbreite 1,2 mm
Copyright: Kurt Rüsenberg; Contribution: humboldt
Collection: humboldt
Location: Spanien/Kanarische Inseln/Teneriffa/San Miguel de Abona, Municipio/Mirador de la Centinela
Mineral: Clinozoisite, Priderite
Image: 1544442915
License: Usage for Mineralienatlas project only
Priderit vom Mirador de la Centinela, Teneriffa

Schwarze Prismen mit gelbgrünem Klinozoisit. Bildbreite 1,2 mm
Collection: humboldt
Copyright: Kurt Rüsenberg
Contribution: humboldt 2018-12-10
Locality: Mirador de la Centinela / San Miguel de Abona, Municipio / Teneriffa / Kanarische Inseln / Spanien
Priderit von Playa San Juan, Teneriffa
Views (File:
1613403787
): 468
Priderit von Playa San Juan, Teneriffa
Schwarze tetragonale Prismen mit farblosen Albittafeln in alteriertem Andesin, Bildbreite 2mm
Copyright: Kurt Rüsenberg; Contribution: humboldt
Collection: humboldt
Location: Spanien/Kanarische Inseln/Teneriffa/Guía de Isora, Municipio/Playa San Juan
Mineral: Albite, Andesine, Priderite
Rock: melilitic rock
Image: 1613403787
License: Usage for Mineralienatlas project only
Priderit von Playa San Juan, Teneriffa

Schwarze tetragonale Prismen mit farblosen Albittafeln in alteriertem Andesin, Bildbreite 2mm
Collection: humboldt
Copyright: Kurt Rüsenberg
Contribution: humboldt 2021-02-15
Locality: Playa San Juan / Guía de Isora, Municipio / Teneriffa / Kanarische Inseln / Spanien

Collectors Summary

Color rötlich, rötlich schwarz, schwarz
Streak color grau
Crystal System tetragonal, I4/m

Chemism

Chemical formula

K(Ti4+7Fe3+)O16

Chemical composition

Eisen, Titan, Kalium, Sauerstoff

Unit weight: 686.00409 u; Number of atoms in the formula: 25

Info

Empirical formula:

K(Ti7Fe)O16

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

37.32

16

64.00

15.9994300

255.9908800
Potassium

K

5.70

1

4.00

39.0983100

39.0983100
Titanium

Ti

48.84

7

28.00

47.8671000

335.0697000
Iron

Fe

8.14

1

4.00

55.8452000

55.8452000

Analysis wt%

TiO2 : 70.60, Fe2O3 : 12.40, Al2O3 : 2.30, BaO : 6.70, K2O : 5.60, Na2O : 0.60 (Ref: Mineralogical Magazine 51)

Strunz 9th edition incl. updates

4.DK.05b

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
K: Mit großen (± mittelgroßen) [Kationen]; Tunnelstrukturen
05b:Priderit-Gruppe

Lapis Classification

IV/D.08-030

IV: OXIDE
D: Oxide mit Verhältnis Metall : Sauerstoff = 1:2 (MO2 und verwandte Verbindungen)
8: Kryptomelan-Gruppe

Classification by Hölzel

4.CE.620

4: OXIDES
C: R2O3 Sesquioxides
E: Other complex Oxides, mostly hextrig
6: Freudenbergite-Group

Dana 8th edition

07.09.04.01

07: Multiple Oxides
09: Multiple Oxides

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Hollandite supergroup  ⇒ Priderite group

Optical Properties

Color

rötlich, rötlich schwarz, schwarz

Streak color

grau

Diaphaneity (Transparency)

opak

RI value α / ω / n

2.10>

RI value γ / ε

2.10>

2V angle

Uniaxial (+)

Crystallography

Crystal System

tetragonal

Class (H-M)

4/m

Space Group number

87

Space Group

I4/m

Cell parameters a (Å)

10.11

Cell parameters b (Å)

-

Cell parameters c (Å)

2.964

Cell parameters a/b or c/a

0.293

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

1

Volume (ų)

302.957

X-Ray Powder Diffraction

7.14(50),
5.05(50),
3.20(100),
2.475(50),
2.226(30),
1.891(50),
1.687(30),
1.588(40)
XRD chart Priderite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

3.86

3.76 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Australien/Western Australia/Derby-West Kimberley Shire/Kimberley/Fitzroy Basin/Walgidee Hills

Preface

Author (Name, Year)

Norrish, 1951

References

Mineralogical Magazine 29 (1951), 496

European Journal of Mineralogy Volume 25 Number 1 (2013), p. 85 - 90

IMA group assignments

Varieties

Ba-Priderite

Other languages

German

Priderit

Spanish

Priderita

English

Priderite

French

Priderite

Russian

Прайдерит

Japanese

ﾎﾟﾗｲﾃﾞﾗｲﾄ

CNMNC symbol

Symbol

Pdr

Rock part of

Locations with GPS information

IDs

GUSID (Global unique identifier short form) qtup9fqFmUGyHXb9_6nNzQ
GUID (Global unique identifier) F5A9DBAA-85FA-4199-B21D-76FDFFA9CDCD
Database ID 3128