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Fluorstrophite

Pictures (2 Images total)

Strontiumapatit
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Strontiumapatit

Fundort: Lovozero, See Segd, Kola, Russland; Größe: 10 x 7 x 8 mm; Funddatum 1991; XRD-analysiertes Stück

Copyright: Torben
Contribution: Torben 2006-05-20
Locality: Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Strontiumapatit: Fluorstrophit (Gelb-grün) und Magnesioarfvedsonit (schwarz)
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Strontiumapatit: Fluorstrophit (Gelb-grün) und Magnesioarfvedsonit (schwarz)

Lepkhe-Nel'm; Seidozero-See, Lovozero, Kola-Halbinse; Murmansk, Nordwestrussland, Russland.

Collection: Doc Diether
Copyright: Doc Diether
Contribution: Doc Diether 2018-02-21
Locality: Lepkhe-Nel'm / Seidozero-See / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color farblos, gelblichgrün
Streak color weiß
Hardness (Mohs) 5
Solubility +++ HNO3, HCl
Crystal System hexagonal, P63

Additional information / Summary

Apatit-(SrOH) ehemals Strontiumapatit

Chemism

Chem­ical formula

(Sr,Ca)5(PO4)3(OH,F)

Chem­ical com­po­si­tion

Calcium, Strontium, Fluor, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 681.0963271625 u; Number of atoms in the formula: 21.75

Info

Empirical formula:

(Sr0.75Ca0.25)5(PO4)3((OH)0.75F0.25)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.11

0.75

3.45

1.0079470

0.7559603

Oxygen

O

29.95

12.75

58.62

15.9994300

203.9927325

Fluorine

F

0.70

0.25

1.15

18.9984033

4.7496008

Phosphorus

P

13.64

3

13.79

30.9737612

92.9212836

Calcium

Ca

7.36

1.25

5.75

40.0784000

50.0980000

Strontium

Sr

48.24

3.75

17.24

87.6210000

328.5787500

Anal­y­sis wt%

P2O5 : 30.44, SiO2 : 0.90, Al2O3 : 0.40, CaO : 10.80, SrO : 46.06, BaO : 2.70, MgO : 1.64, ThO2 : 0.60, La2O3 : 0.97, Ce2O3 : 2.01, Na2O : 0.64, H2O : 0.61, F : 1.67, Ln2O3 : 3.73 (Ref: Doklady Akademiia Nauk, SSSR 62)

Strunz 9th edi­tion incl. updates

8.BN.05

8: Phosphate, Arsenate, Vanadate
B: Phosphate, etc., mit weitere Anionen, ohne H2O
N: Mit ausschließlich [Kationen] (OH, etc.):RO4 = 0.33:1
05:Apatit-Gruppe

Lapis Clas­sifica­tion

VII/B.39-090

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
B: Wasserfreie Phosphate, mit fremden Anionen F,Cl,O,OH
39: Mittelgroße und große Kationen: Mg-Cu-Zn und Ca-Na-K-Ba-Pb; Apatit-Gruppe

Clas­sifica­tion by Hölzel

8.BO.620

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
O: Apatite Supergroup
6: Belovites with Ca,Sr,Ba

Dana 8th edi­tion

41.08.01.07

41: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
08: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen where (A)5 (XO4)3 Zq
01: Apatite Group

IMA sta­tus

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

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Apatite Supergroup  ⇒ Belovite group

Optical Properties

Color

farblos, gelblichgrün

Streak color

weiß

max. Birefrin­gence

0.014

Birefringence chart\! Fluorstrophite title=Birefringence chart Fluorstrophite

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

1.651

RI value γ / ε

1.637

Ri mean

1.646

2V angle

Uniaxial (-)

Optical Data Luminescence

Color SW-UV (254nm)

 

orangerot

Most Common Acti­vator

Sm3+

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Crystallography

Crystal Sys­tem

hexagonal

Class (H-M)

6

Space Group number

173

Space Group

P63

Cell param­e­ters a (Å)

9.745

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

7.256

Cell param­e­ters a/b or c/a

0.745

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

120°

Z

2

Volumne (ų)

596.749

X-Ray Pow­der Diffrac­tion

3.18(70),
2.90(100),
2.79(70),
2.32(50),
2.151(50),
2.009(70),
1.913(70),
1.470(60)

XRD chart Fluorstrophite

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)

5

VHN (Hard­ness Vick­ers)

390 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.84 (gemessen)

3.79 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ HNO3, HCl

Preface

Author (Name, Year)

Efimov & Kravchenko & Vasil'eva, 1962

References

Handbook of Mineralogy (Anthony et al.), 4 (2000), 569.

Mineralogical Record, vol. 39, no. 2 (March–April 2008) - [umbenennung zu Apatit-(CaCl)].

Mills SJ, Hatert F, Nickel EH, Ferraris G (2009) The standardisation of mineral group hierarchies: application to recent nomenclature proposa ls. European Journal of Mineralogy 21: 1073-1080

Pasero M, Kampf AR, Ferraris C, Pekov IV, Rakovan J, White TJ (2010) Nomenclature of the apatite supergroup minerals. European Journal of Mineralogy 22: 163-179 [umbenennen zu Fluorstrophit]

http://elements.geoscienceworld.org/cgi/reprint/6/2/127.pdf

IMA group assignments

Other languages

German

Fluorstrophit

English

Fluorstrophite

Russian

Стронциоапатит

Russian

Фторстрофит

old name

German

Apatit-(SrOH)

Alternative Name

English

Apatite-(SrOH)

Spanish

Estrontioapatita

German

Strontiapatit

Spanish

Strontiapatita

Strontiapatite

French

Strontium-Apatite

Strontium-Apatite (of Efimov et al.)

English

Strontium-apatite

Strontiumapatit

Russian

Апатит-(SrOH)

Japanese

ストロンチウム燐灰石

CNMNC symbol

Symbol

Fstr

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Fluorstrophit
Google-Bilder-Suche - search for: Fluorstrophit
Mineralienatlas.de (Forum) - search for: Fluorstrophit

English pages

Mindat - search for: Fluorstrophite
Webmineral - search for:Fluorstrophite
Handbook-of-Mineralogy - search for: Fluorstrophite
RRUFF - Raman, XRD and other mineral data - search for: Fluorstrophite
RRUFF - References and PDF downloads - search for: Fluorstrophite
American-Mineralogist-Crystal-Structure-Database - search for: Fluorstrophite
Strahlen.org - search for: Fluorstrophite

Russian pages

Webmineral.ru - search for: Стронциоапатит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Fluorstrophit
Crystal-Treasure.com - search for: Fluorstrophit
Bosse - search for: Fluorstrophit
Edelsteine Neuburg - Gundolf Fischer - search for: Fluorstrophit

Locations with GPS information