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Fluorcalciobritholite (Фторкальциобритолит)

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Fluorcalciobritholith
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Fluorcalciobritholith

Kristallgröße: 0,8 mm, Fundort: Tuliok-Fluss-Oberlauf, östlicher Hang, Kukisvumchorr, Khibiny, Kola-Halbinsel, Murmansk, Russland

Copyright: Pavel M. Kartashov
Contribution: thdun5 2013-02-12
Locality: Tuliok-Fluss-Oberlauf / östlicher Hang / Kukisvumchorr / Chibiny (Khibiny) / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color braun mit pinkem Farbton
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 5.5
Cleavages keine
Fracture muschelig
Crystal System hexagonal, P63/m

Chemism

Chem­ical formula

(Ca,REE)5[(Si,P)O4]3F

Chem­ical com­po­si­tion

Calcium, Silicium, Fluor, Phosphor, Sauerstoff, REE

Unit weight: 627.70832665 u; Number of atoms in the formula: 21

Info

Empirical formula:

(Ca0.75REE0.25)5[(Si0.75P0.25)O4]3F

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

30.59

12

57.14

15.9994300

191.9931600

Fluorine

F

3.03

1

4.76

18.9984033

18.9984033

Silicon

Si

10.07

2.25

10.71

28.0855300

63.1924425

Phosphorus

P

3.70

0.75

3.57

30.9737612

23.2303209

Calcium

Ca

23.94

3.75

17.86

40.0784000

150.2940000

Rare Earth

REE

28.68

1.25

5.95

144.0000000

180.0000000

Anal­y­sis wt%

Ø P2O5 : 10.44, SiO2 : 16.24, ThO2 : 1.44, Y2O3 : 2.88, La2O3 : 12.36, Ce2O3 : 21.22, Pr2O3 : 1.86, Nd2O3 : 6.21, Sm2O3 : 0.82, Gd2O3 : 0.74, Dy2O3 : 0.61, Yb2O3 : 0.44, CaO : 21.89, F : 2.02, Ln2O3 : 47.44 (Ref: European Journal of Mineralogy 2007)

Strunz 9th edi­tion incl. updates

9.AH.25

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

Lapis Clas­sifica­tion

VIII/B.27-070

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.820

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
O: Apatite Supergroup
8: Phosphate or Boro Silico Apatites - Britholites

IMA sta­tus

anerkannt 05/2006

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Apatite Supergroup  ⇒ Britholite group

Optical Properties

Color

braun mit pinkem Farbton

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

Lus­tre

Glasglanz

max. Birefrin­gence

0.005

Birefringence chart\! Fluorcalciobritholite title=Birefringence chart Fluorcalciobritholite

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

1.735

RI value γ / ε

1.730

Ri mean

1.733

2V angle

Uniaxial (-)

Pleochro­ism

kein

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

hexagonal

Class (H-M)

6/m

Space Group number

176

Space Group

P63/m

Cell param­e­ters a (Å)

9.580

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

6.085

Cell param­e­ters a/b or c/a

0.635

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

120°

Z

2

Volumne (ų)

483.64

X-Ray Pow­der Diffrac­tion

3.51(45), 3.15(70), 2.85(100), 2.78(60), 1.965(25), 1.931(20), 1.236(25), 1.122(30)

XRD chart Fluorcalciobritholite

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)

5.5

VHN (Hard­ness Vick­ers)

530 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.2 gemessen

4.31 ( ρ calc. Mineralienatlas )

Cleav­ages

keine

Frac­ture

muschelig

Tenac­ity

spröde

Radioac­tiv­ity

Fluorcalciobritholith von sibirischen Lokalitäten ist metamikt, stark radioaktiv.

Preface

Name from

chemischer Zusammensetzung mit Fluor und Calcium und der kristallchemischen Zugehörigkeit zur Britholith-Gruppe

References

Neue Mineralien IMA-WEB-Seite 05/2006; "Mineralien Welt", Heft 04/08. [Radioaktivität]

IMA group assignments

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Britholite-(Ce)

Ca2(Ce,Ca)3(SiO4,PO4)3 (OH,F)

hexagonal : 6/m : P63/m

9.AH.25

Britholite-(Y)

(Y,Ca)5(SiO4,PO4)3(OH,F)

monoklin : 2 : P21

9.AH.25

Chlorellestadite

Ca5(SiO4)1.5(SO4)1.5Cl

hexagonal : 6/m : P63/m

9.AH.25

'Ellestadite group'

Ca5(SiO4,PO4,SO4)3(F,OH,Cl)

9.AH.25

Fluorbritholite-(Ce)

(Ce,Ca)5(SiO4)3F

hexagonal : 6/m : P63/m

9.AH.25

Fluorbritholite-(Y)

(Y,Ca,Ln)5[(Si,P)O4]3F

hexagonal : 6/m : P63/m

9.AH.25

Fluorcalciobritholite

(Ca,REE)5[(Si,P)O4]3F

hexagonal : 6/m : P63/m

9.AH.25

Fluorellestadite

Ca5(SiO4,PO4,SO4)3(F,OH,Cl)

hexagonal : 6/m : P63/m

9.AH.25

Hydroxylellestadite

Ca10(SiO4)3(SO4)3(OH,Cl,F)2

monoklin : 2, 2/m : P21, P21/m

9.AH.25

Tritomite-(Ce)

Ce5(SiO4,BO4)3(OH,O)

hexagonal : 6/m : P63/m

9.AH.25

'Tritomite-(Y)'

(Y,Ca,La,Fe2+)5(Si,B,Al)3(O,OH,F)13

hexagonal : 6/m : P63/m

9.AH.25

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Fluorellestadite

Ca5(SiO4,PO4,SO4)3(F,OH,Cl)

hexagonal : 6/m : P63/m

VIII/B.27-010

Chlorellestadite

Ca5(SiO4)1.5(SO4)1.5Cl

hexagonal : 6/m : P63/m

VIII/B.27-020

Hydroxylellestadite

Ca10(SiO4)3(SO4)3(OH,Cl,F)2

monoklin : 2, 2/m : P21, P21/m

VIII/B.27-030

Mattheddleite

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

hexagonal : 6/m : P63/m

VIII/B.27-040

Britholite-(Y)

(Y,Ca)5(SiO4,PO4)3(OH,F)

monoklin : 2 : P21

VIII/B.27-050

Britholite-(Ce)

Ca2(Ce,Ca)3(SiO4,PO4)3 (OH,F)

hexagonal : 6/m : P63/m

VIII/B.27-060

Fluorbritholite-(Y)

(Y,Ca,Ln)5[(Si,P)O4]3F

hexagonal : 6/m : P63/m

VIII/B.27-061

Fluorbritholite-(Ce)

(Ce,Ca)5(SiO4)3F

hexagonal : 6/m : P63/m

VIII/B.27-062

Fluobritholite-(Ce)

(Ce,Ca)5(SiO4)3F

hexagonal : 6/m : P63/m

VIII/B.27-062

Fluorcalciobritholite

(Ca,REE)5[(Si,P)O4]3F

hexagonal : 6/m : P63/m

VIII/B.27-070

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Britholite-(Y)

(Y,Ca)5(SiO4,PO4)3(OH,F)

monoklin : 2 : P21

8.BO.800

Britholite-(Ce)

Ca2(Ce,Ca)3(SiO4,PO4)3 (OH,F)

hexagonal : 6/m : P63/m

8.BO.803

Fluorbritholite-(Y)

(Y,Ca,Ln)5[(Si,P)O4]3F

hexagonal : 6/m : P63/m

8.BO.810

Fluorbritholite-(Ce)

(Ce,Ca)5(SiO4)3F

hexagonal : 6/m : P63/m

8.BO.813

Fluorcalciobritholite

(Ca,REE)5[(Si,P)O4]3F

hexagonal : 6/m : P63/m

8.BO.820

'Tritomite-(Y)'

(Y,Ca,La,Fe2+)5(Si,B,Al)3(O,OH,F)13

hexagonal : 6/m : P63/m

8.BO.860

Tritomite-(Ce)

Ce5(SiO4,BO4)3(OH,O)

hexagonal : 6/m : P63/m

8.BO.863

Melanocerite-(Ce)

(Ce,Ca)5(SiO4,BO4)3(OH,O)

amorph

8.BO.864

Other languages

Spanish

Fluorcalciobritholita

English

Fluorcalciobritholite

German

Fluorcalciobritholith

Russian

Фторкальциобритолит

Simplified Chinese

氟硅磷灰石

IMA Number

IMA 2006-010

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

German pages

DeWikiPedia - search for: Fluorcalciobritholith
Google-Bilder-Suche - search for: Fluorcalciobritholith
Mineralogisch-Petrographisches-Institut Hamburg - search for: Fluorcalciobritholith

English pages

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Webmineral - search for:Fluorcalciobritholite
Handbook-of-Mineralogy - search for: Fluorcalciobritholite
RRUFF - Raman, XRD and other mineral data - search for: Fluorcalciobritholite
RRUFF - References and PDF downloads - search for: Fluorcalciobritholite
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Russian pages

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Locations with GPS information




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