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Strontiowhitlockite

Pictures (2 Images total)

Strontiowhitlockit
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Strontiowhitlockit
Bildbreite: 5 mm; Fundort: Zheleznyi Mine (Eisen Mine), Kovdor Massif, Halbinsel Kola, Murmansk, Russland
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Kovdor/Zheleznyi Mine (Iron Mine)
Mineral: Strontiowhitlockite
Image: 1269270314
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Strontiowhitlockit

Bildbreite: 5 mm; Fundort: Zheleznyi Mine (Eisen Mine), Kovdor Massif, Halbinsel Kola, Murmansk, Russland
Copyright: Stephan Wolfsried
Contribution: Hg 2010-03-22
Locality: Zheleznyi Mine (Iron Mine) / Kovdor / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Strontiowhitlockit
Views (File:
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Strontiowhitlockit
Feinnadelige cremefarbene Strontiowhitlockite. Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Kovdor/Zheleznyi Mine (Iron Mine), BB = 3 mm
Copyright: Klaus Schäfer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A041486, Donator: Hannes Rose
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Kovdor/Zheleznyi Mine (Iron Mine)
Mineral: Strontiowhitlockite
Image: 1686921945
License: Usage for Mineralienatlas project only
Strontiowhitlockit (SNr: A041486)

Feinnadelige cremefarbene Strontiowhitlockite. Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Kovdor/Zheleznyi Mine (Iron Mine), BB = 3 mm
Collection: Lithothek der Münchener Micromounter
Copyright: Klaus Schäfer
Contribution: Münchener Micromounter 2023-06-16
Locality: Zheleznyi Mine (Iron Mine) / Kovdor / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

You find additional specimen at the Geolitho Museum

Collectors Summary

Color weiß
Streak color weiß
Cleavages mäßig, aber this may be a teilbar {001}
Fracture uneben
Crystal System trigonal, R3c

Chemism

Chemical formula

Sr7(Mg,Ca)3(PO4)6[PO3(OH)]

Chemical composition

Calcium, Magnesium, Strontium, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 1363.9005004 u; Number of atoms in the formula: 46

Info

Empirical formula:

Sr7(Mg0.75Ca0.25)3(PO4)6[PO3(OH)]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.07

1

2.17

1.0079470

1.0079470
Oxygen

O

32.85

28

60.87

15.9994300

447.9840400
Magnesium

Mg

4.01

2.25

4.89

24.3050600

54.6863850
Phosphorus

P

15.90

7

15.22

30.9737612

216.8163284
Calcium

Ca

2.20

0.75

1.63

40.0784000

30.0588000
Strontium

Sr

44.97

7

15.22

87.6210000

613.3470000

Analysis wt%

CaO : 5.50, SrO : 51.40, BaO : 2.30, MgO : 4.60, P2O5 : 35.20, H2O : 0.50 (Ref: Canadian Mineralogist 91)

Strunz 9th edition incl. updates

8.AC.45

8: Phosphate, Arsenate, Vanadate
A: Phosphate, etc., ohne weitere Anionen, ohne H2O
C: Mit mittelgroßen und großen [Kationen]
45:Whitlockit-Gruppe

Lapis Classification

VII/A.05-060

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
A: Wasserfreie Phosphate [PO4] 3-, ohne fremde Anionen
5: Mittelgroße Kationen: Fe-Mn vorwiegend

Classification by Hölzel

8.AC.310

8: PHOSPHATES ARSENATES VANADATES
A: Phosphates (-anions -water)
C: Phosphates, C medium + large
3: Whitlockite-Group

Dana 8th edition

38.03.04.02

38: Anhydrous Phosphates, etc
03: Anhydrous Phosphates, etc (A+ B++)3 (XO4)2
04: Whitlockite group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

weiß

Streak color

weiß

max. Birefringence

0.003
Birefringence chart\! Strontiowhitlockite title=Birefringence chart Strontiowhitlockite

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

1.601

RI value γ / ε

1.598

Ri mean

1.600

2V angle

Uniaxial (-)

Crystallography

Crystal System

trigonal

Class (H-M)

3m

Space Group number

161

Space Group

R3c

Cell parameters a (Å)

10.644

Cell parameters b (Å)

-

Cell parameters c (Å)

39.54

Cell parameters a/b or c/a

3.715

Cell parameters c/b

-

Z

6

Volume (ų)

3879.511

X-Ray Powder Diffraction

5.33(20),
3.288(40),
3.071(30),
3.004(100),
2.661(80),
1.991(30),
1.940(30),
1.783(40)
XRD chart Strontiowhitlockite

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

Physical Properties

Density (g/cm³)

3.62 (gemessen)

3.503 ( ρ calc. Mineralienatlas )

Cleavages

mäßig, aber this may be a teilbar {001}

Fracture

uneben

(Co-)Type locality

(Co-)Type locality

Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Kovdor

Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Kovdor/Zheleznyi Mine (Iron Mine)

Preface

Author (Name, Year)

Britvin & Pakhomovskiy & Bogdanova & Skiba, 1991

References

Canadian Mineralogist 29 (1991), 87

Other languages

Spanish

Estronciowhitlockita

German

Strontiowhitlockit

English

Strontiowhitlockite

French

Strontiowhitlockite

Russian

Стронциовитлокит

Alternative Name

Spanish

Strontiowhitlockita

CNMNC (IMA)-Number

IMA 1989-040

CNMNC symbol

Symbol

Swht

Locations with GPS information

IDs

GUSID (Global unique identifier short form) UAh5gG8m_Ei3HSccoSw1PA
GUID (Global unique identifier) 80790850-266F-48FC-B71D-271CA12C353C
Database ID 3675