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Warwickite

Pictures (11 Images total)

Warwickit mit Pseudobrookit und Magnetit
Views (File:
1427380202
): 1605
Warwickit mit Pseudobrookit und Magnetit
Bildbreite: 1,8 mm; Fundort: Canteras de la Aljorra, La Aljorra, Campo de Cartagena, Murcia, Spanien
Copyright: Frédéric Hède (Gluon); Contribution: Hg
Location: Spanien/Región de Murcia/Murcia, Provinz/Campo de Cartagena, Comarca/Cartagena, Municipio/La Aljorra/La Aljorra Quarries
Mineral: Warwickite
Image: 1427380202
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Warwickit mit Pseudobrookit und Magnetit

Bildbreite: 1,8 mm; Fundort: Canteras de la Aljorra, La Aljorra, Campo de Cartagena, Murcia, Spanien
Copyright: Frédéric Hède (Gluon)
Contribution: Hg 2015-03-26
Locality: La Aljorra Quarries / La Aljorra / Cartagena, Municipio / Campo de Cartagena, Comarca / Murcia, Provinz / Región de Murcia / Spanien
Warwickit
Views (File:
1415524729
): 877
Warwickit
Nordhallen, Duved, Schweden. Bildbreite 1,4 mm.
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Schweden/Jämtland, Provinz/Duved, Ort/Nordhallen
Mineral: Warwickite
Image: 1415524729
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Warwickit

Nordhallen, Duved, Schweden. Bildbreite 1,4 mm.
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2014-11-09
Locality: Nordhallen / Duved, Ort / Jämtland, Provinz / Schweden
Warwickit
Views (File:
1467219296
): 433
Warwickit
Tafeliger schwarzer Kristall, Bb = 7,8 mm; Fundort: Amity, Town Of Warwick, Orange Co., New York, USA.
Copyright: Bebo; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A002590, Donator: Melanie Albert
Location: USA/New York/Orange Co./Warwick, Stadt/Amity
Mineral: Warwickite
Image: 1467219296
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Warwickit (SNr: A002590)

Tafeliger schwarzer Kristall, Bb = 7,8 mm; Fundort: Amity, Town Of Warwick, Orange Co., New York, USA.
Collection: Lithothek der Münchener Micromounter
Copyright: Bebo
Contribution: Münchener Micromounter 2016-06-29
Locality: Amity / Warwick, Stadt / Orange Co. / New York / USA
Warwickit
Views (File:
1415524785
): 215
Warwickit
Nordhallen, Duved, Schweden. Bildbreite 1 mm.
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Schweden/Jämtland, Provinz/Duved, Ort/Nordhallen
Mineral: Warwickite
Image: 1415524785
License: Usage for Mineralienatlas project only
Warwickit

Nordhallen, Duved, Schweden. Bildbreite 1 mm.
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2014-11-09
Locality: Nordhallen / Duved, Ort / Jämtland, Provinz / Schweden
Warwickit
Views (File:
1415524842
): 494
Warwickit
Nordhallen, Duved, Schweden. Bildbreite 1 mm.
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Schweden/Jämtland, Provinz/Duved, Ort/Nordhallen
Mineral: Warwickite
Image: 1415524842
License: Usage for Mineralienatlas project only
Warwickit

Nordhallen, Duved, Schweden. Bildbreite 1 mm.
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2014-11-09
Locality: Nordhallen / Duved, Ort / Jämtland, Provinz / Schweden

You find additional specimen at the Geolitho Museum

Collectors Summary

Color dunkelbraun, schwarz; in dünnen Schichten dunkelgelb, blassbraun, rötlichbraun
Streak color rötlichschwarz
Lustre Subglasglanz, Perlglanz, Halbmetallglanz auf Spaltflächen, häufig Matt wenn gealt
Hardness (Mohs) 3.50 - 4.00
Cleavages gut {100}
Fracture uneben
Solubility +++ H2SO4
Crystal System orthorhombisch, Pnam

Chemism

Chemical formula

(Mg,Ti,Fe,Cr,Al)2O(BO3)

Chemical composition

Aluminium, Chrom, Eisen, Magnesium, Titan, Bor, Sauerstoff

Unit weight: 144.54534582 u; Number of atoms in the formula: 7

Info

Empirical formula:

(Mg0.55Ti0.25Fe0.1Cr0.05Al0.05)2O(BO3)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Boron

B

7.48

1

14.29

10.8117000

10.8117000
Oxygen

O

44.28

4

57.14

15.9994300

63.9977200
Magnesium

Mg

18.50

1.1

15.71

24.3050600

26.7355660
Aluminium

Al

1.87

0.1

1.43

26.9815382

2.6981538
Titanium

Ti

16.56

0.5

7.14

47.8671000

23.9335500
Chromium

Cr

3.60

0.1

1.43

51.9961600

5.1996160
Iron

Fe

7.73

0.2

2.86

55.8452000

11.1690400

Analysis wt%

MgO : 36.80, FeO : 7.02, Al2O3 : 2.21, SiO2 : 1.00, TiO2 : 23.82, B2O3 : 27.80 (Ref: Dana, 7th ed. 2)

Strunz 9th edition incl. updates

6.AB.20

6: Borate
A: Monoborate
B: BO3 mit zusätzlichen Anionen; 1(Δ) + OH, etc.
20:Warwickit-Gruppe

Lapis Classification

V/G.03-010

V: NITRATE, CARBONATE UND BORATE
G: Inselborate
3: [BO3] 3--Inseln

Classification by Hölzel

6.AB.230

6: Borates
A: Monoborates
B: BO3, with additional anions - 1(P)+OH, etc.
2: With Me~[6] cations

Dana 8th edition

24.02.02.01

24: Borates - Anhydrous
02: Borates - Anhydrous where (A)2 BO2 [XO3]

IMA status

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

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Warwickite group

Optical Properties

Color

dunkelbraun, schwarz; in dünnen Schichten dunkelgelb, blassbraun, rötlichbraun

Streak color

rötlichschwarz

Diaphaneity (Transparency)

opak, transparent in dünnsten Schichten

Lustre

Subglasglanz, Perlglanz, Halbmetallglanz auf Spaltflächen, häufig Matt wenn gealt

max. Birefringence

0.020
Birefringence chart\! Warwickite title=Birefringence chart Warwickite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.772 - 1.808

RI value β

1.773 - 1.813

RI value γ / ε

1.792 - 1.830

Ri mean

1.798

2V angle

Biaxial (+) 25.8° (berechnet)

Orientation

X = c, Y = b, Z = a

Absorption

X > Y > Z

Pleochroism

Schattierungen von braun

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pnam

Cell parameters a (Å)

9.197

Cell parameters b (Å)

9.358

Cell parameters c (Å)

3.085

Cell parameters a/b or c/a

0.983

Cell parameters c/b

0.330

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

265.512

Crystal structure

in hoher Genauigkeit bestimmt, siehe Marian V. Lupulescu ; Alix M. Ehlers; John M. Hughes; David G. Bailey: Warwickite from St. Lawrence County, New York: Mineral association, chemical composition, cation ordering, and splitting of the warwickite M1 site. The Canadian Mineralogist Vol. 58, Nr. 2 (2020) S. 183-190.

X-Ray Powder Diffraction

6.55(40),
4.20(40),
2.97(30),
2.75(50),
2.57(100),
1.979(30),
1.721(30),
1.501(30)
XRD chart Warwickite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

3.50 - 4.00

VHN (Hardness Vickers)

160 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.40 (berechnet) 3.35 (gemessen)

3.616 ( ρ calc. Mineralienatlas )

Cleavages

gut {100}

Fracture

uneben

Tenacity

spröde

Instability

+++ H2SO4

(Co-)Type locality

(Co-)Type locality

USA/New York/Orange Co./Warwick, Stadt/Amity/Warwickit Typlokalität

Type material

Natural History Museum, Paris, Frankreich

National Museum of Natural History, Washington, D.C., USA

Collection number of type material

74217, 99697 (Frankreich); 128712 (USA)

Preface

Associations

Apatit, Pseudobrookit, Hämatit

Name from

seinem ersten Vorkommen in Warwick, New York, USA

Author (Name, Year)

Shepard, 1838

References

Shepard, C. U.: Notice of warwickite, a new mineral species. American Journal of Science, series 1: 8 (1838) S. 313-315. (Typ-Publ.)

American Mineralogist 59 (1974), 985.

Handbook of Mineralogy (Anthony et al.), 5 (2003), 474

Marian V. Lupulescu; Alix M. Ehlers; John M. Hughes; David G. Bailey: Warwickite from St. Lawrence County, New York: Mineral association, chemical composition, cation ordering, and splitting of the warwickite M1 site. The Canadian Mineralogist Vol. 58, Nr. 2 (2020) S. 183-190.

IMA group assignments

 
Warwickite group
 
 
 

 
 
Warwickite
(Mg,Ti,Fe,Cr,Al)2O(BO3)
orthorhombisch
Pnam

 
 
Yuanfuliite
Mg(Fe3+,Al)[O|BO3]
orthorhombisch
Pnma

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Actuality: 22. Jan 2025 - 09:47:13

Other languages

German

Warwickit

Spanish

Warwickita

French

Warwickite

English

Warwickite

Russian

Варвикит

Japanese

ﾜｰｳｨｯｸ石

Alternative Name

Enceladite

CNMNC symbol

Symbol

Wwk

Rock part of

 
Rocks

 
 
igneous rocks and sediments

 
 
 
crystalline igneous rocks

 
 
 
 
exotic crystalline rocks

 
 
 
 
 
lamproite

 
 
 
 
 
 
olivine-diopside-richterite-madupitic lamproite

 
 
 
 
 
 
 
jumillite  

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Hint

- Essential mineral - Important for the classification of the rock.
- Accessory or non-essential mineral - this minerals are common, sometimes major part of, but are not always present.

Actuality: 22. Jan 2025 - 09:47:13

Locations with GPS information

IDs

GUSID (Global unique identifier short form) WOmLNwv72keg-3iqARI6rw
GUID (Global unique identifier) 378BE958-FB0B-47DA-A0FB-78AA01123AAF
Database ID 4125