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Mattheddleite

Pictures (3 Images total)

Mattheddleit
Views (File:
1359576079
): 1110
Mattheddleit
Dünne langtafelige hellblaue Kristalle, BB = 1 mm, Fundort: Red Gill Mine, Roughton Gill, Caldbeck Fells, Cumberland, UK
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A003989, Donator: Klaus Fleck
Location: UK/England/Cumbria Co./Allerdale, District/Caldbeck, Parish/Caldbeck Fells/Roughton Gill/Red Gill Mine
Mineral: Mattheddleite
Image: 1359576079
Rating: 6 (votes: 2)
License: Usage for Mineralienatlas project only
Mattheddleit (SNr: A003989)

Dünne langtafelige hellblaue Kristalle, BB = 1 mm, Fundort: Red Gill Mine, Roughton Gill, Caldbeck Fells, Cumberland, UK
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2013-01-30
Locality: Red Gill Mine / Roughton Gill / Caldbeck Fells / Caldbeck, Parish / Allerdale, District / Cumbria Co. / England / UK
Mattheddleit
Views (File:
1408486661
): 577
Mattheddleit
Bildbreite: 2 mm, Fundort: Meadowfoot Smelter, Wanlockhead, Leadhills-Wanlockhead District, Schottland, UK
Copyright: Luigi Chiappino; Contribution: thdun5
Location: UK/Schottland/South Lanarkshire/Wanlockhead/Meadowfoot Smelter
Mineral: Mattheddleite
Image: 1408486661
License: Usage for Mineralienatlas project only
Mattheddleit

Bildbreite: 2 mm, Fundort: Meadowfoot Smelter, Wanlockhead, Leadhills-Wanlockhead District, Schottland, UK
Copyright: Luigi Chiappino
Contribution: thdun5 2014-08-19
Locality: Meadowfoot Smelter / Wanlockhead / South Lanarkshire / Schottland / UK
Mattheddleit
Views (File:
1704055556
): 39
Mattheddleit
Farblos-weißliche nadelige Mattheddleit-xx (ohne Maßstab), FO: Caldbeck Fells, Cumbria, United Kingdom. Ex Renato Pagano collection.
Copyright: Wikipedia-user: David Hospital; Contribution: oliverOliver
Location: UK/England/Cumbria Co./Allerdale, District/Caldbeck, Parish/Caldbeck Fells
Mineral: Mattheddleite
Image: 1704055556
License: Creative Commons - Attribution-ShareAlike 4.0 International  (CC BY-SA) V.4.0
Mattheddleit

Farblos-weißliche nadelige Mattheddleit-xx (ohne Maßstab), FO: Caldbeck Fells, Cumbria, United Kingdom. Ex Renato Pagano collection.
Copyright: Wikipedia-user: David Hospital
Contribution: oliverOliver 2023-12-31
Locality: Caldbeck Fells / Caldbeck, Parish / Allerdale, District / Cumbria Co. / England / UK

You find additional specimen at the Geolitho Museum

Collectors Summary

Color farblos, weiß
Streak color weiß
Crystal System hexagonal, P63/m

Chemism

Chemical formula

Pb5[(Cl,OH)|(PO4)1.5|(SiO4)1.5]

Chemical composition

Blei, Chlor, Silicium, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 1347.47384105 u; Number of atoms in the formula: 21.25

Info

Empirical formula:

Pb5[(Cl0.75(OH)0.25)(PO4)1.5(SiO4)1.5]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.02

0.25

1.18

1.0079470

0.2519868
Oxygen

O

14.55

12.25

57.65

15.9994300

195.9930175
Silicon

Si

3.13

1.5

7.06

28.0855300

42.1282950
Phosphorus

P

3.45

1.5

7.06

30.9737612

46.4606418
Chlorine

Cl

1.97

0.75

3.53

35.4532000

26.5899000
Lead

Pb

76.89

5

23.53

207.2100000

1,036.0500000

Analysis wt%

Ø PbO : 83.60, SiO2 : 7.70, SO3 : 6.00, Cl : 2.40 (Ref: Scott.J.Geol.87)

Strunz 9th edition incl. updates

9.AH.30

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
H: Insel(Neso)silikate mit CO3, SO4, PO4, etc.
30:

Lapis Classification

VIII/B.27-040

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen
27: Kationen mit Koordinationszahlen zwischen [8] und [12]; Inselsilikate mit [SO4] 2--, [CrO4] 2- und [PO4] 3--Gruppen

Classification by Hölzel

8.BO.960

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
O: Apatite Supergroup
9: Sulfate Silico Apatites Ellestadite-Group

Dana 8th edition

52.04.09.06

52: Nesosilicates Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O
04: Nesosilicates Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or > [6] coordination
09: Silicate apatites

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Apatite Supergroup  ⇒ Ellestadite group

Optical Properties

Color

farblos, weiß

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.018
Birefringence chart\! Mattheddleite title=Birefringence chart Mattheddleite

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

2.017

RI value γ / ε

1.999

Ri mean

2.011

2V angle

Uniaxial (-)

Optical Data Luminescence

Luminescence

fluoreszierend, Kurzwelliges UV=matt gelb

Color SW-UV (254nm)

  

gelb

SW-UV Intensity

schwach

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

hexagonal

Class (H-M)

6/m

Space Group number

176

Space Group

P63/m

Cell parameters a (Å)

9.948

Cell parameters b (Å)

-

Cell parameters c (Å)

7.504

Cell parameters a/b or c/a

0.754

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

2

Volume (ų)

643.124

X-Ray Powder Diffraction

4.31(40),
4.15(40),
3.44(20),
3.26(30),
3.004(100),
2.880(40),
2.076(20),
1.876(20)
XRD chart Mattheddleite

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)

6.86 (berechnet)

6.958 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

UK/Schottland/South Lanarkshire/Leadhills

Preface

Author (Name, Year)

Livingstone & Ryback & Fejer & Stanley, 1987

References

Mineralogical Magazine 70 (2006), 265

IMA group assignments

Other languages

German

Mattheddleit

English

Mattheddleite

French

Mattheddleite

Spanish

Mattheddleíta

CNMNC (IMA)-Number

IMA 1985-019

CNMNC symbol

Symbol

Mhd

Locations with GPS information

IDs

GUSID (Global unique identifier short form) wo8K7-9NvU6vpnJRmAqlGw
GUID (Global unique identifier) EF0A8FC2-4DEF-4EBD-AFA6-7251980AA51B
Database ID 2416