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Fluorbarytolamprophyllite

Pictures (2 Images total)

Fluorbarytolamprophyllite
Views (File:
1568312912
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Fluorbarytolamprophyllite
Carsten Slotta/mintreasure.com specimen, photo Joachim Esche; ID by Dr. M. Murashko modified Wild M420 photomacroscope with apozoom and Canon EOS 550D; Locality: Niva alkaline intrusion, Murmansk Oblast, Russia; Fov: 5.7 mm; 2017
Copyright: Joachim Esche; Contribution: Stefan
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Kandalakscha/Niva agpaitische Syenit Intrusion
Mineral: Fluorbarytolamprophyllite
Image: 1568312912
License: Usage for Mineralienatlas project only
Fluorbarytolamprophyllite

Carsten Slotta/mintreasure.com specimen, photo Joachim Esche; ID by Dr. M. Murashko modified Wild M420 photomacroscope with apozoom and Canon EOS 550D; Locality: Niva alkaline intrusion, Murmansk O...
Copyright: Joachim Esche
Contribution: Stefan 2019-09-12
Locality: Niva agpaitische Syenit Intrusion / Kandalakscha / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Fluorbarytolamprophyllite, Fluorlamprophyllite, Microcline, Aegirine, Sodalite
Views (File:
1568313025
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Fluorbarytolamprophyllite, Fluorlamprophyllite, Microcline, Aegirine, Sodalite
Zonal crystals of golden-brown Fluorbarytolamprophyllite owergrow cores of Fluorlamprophyllite within leucocratic Aegirine-Sodalite-Microcline syenite with disseminated impregnation of primary Villiaumite. Fluorine contents in these intergrowths vary from 4 to over 8 mas.%. Minor crystals of Loparite also presents in the rock. Collected by Mikhail Uchitel' in 2012 in dumps of adit #11 of the Kedyk area of the mine. Pavel M. Kartashov analythical data, collection and scan; Locality: Karnasurt mine, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia;
Copyright: Pavel M. Kartashov; Contribution: Stefan
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Kandalakscha/Niva agpaitische Syenit Intrusion
Mineral: Fluorbarytolamprophyllite
Image: 1568313025
License: Usage for Mineralienatlas project only
Fluorbarytolamprophyllite, Fluorlamprophyllite, Microcline, Aegirine, Sodalite

Zonal crystals of golden-brown Fluorbarytolamprophyllite owergrow cores of Fluorlamprophyllite within leucocratic Aegirine-Sodalite-Microcline syenite with disseminated impregnation of primary Vill...
Copyright: Pavel M. Kartashov
Contribution: Stefan 2019-09-12
Locality: Niva agpaitische Syenit Intrusion / Kandalakscha / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color braun
Lustre Glasglanz, Perlglanz
Hardness (Mohs) 2.5
Crystal System monoklin, C2/m

Additional information / Summary

Fluorbarytolamprophyllit ist das F-dominante Analogon von Barytolamprophyllit und das Ba-dominante Analogon von Fluorlamprophyllit.

Chemism

Chemical formula

(Ba,Sr)2[(Na,Fe2+)3(Ti,Mg)F2] [Ti2(Si2O7)2O2]

Empirical formula (analysis)

(Ba0.865Sr0.44K0.46Na0.26)Σ2.02 5(Na2.38Ca0.09Fe0.47Mn0.06)Σ3.00 (Ti2.79Mg0.09Fe0.035Nb0.06Zr0.015Ta0.01)Σ3.00 (Si3.99Al0.01)Σ4.00 O16[F1.04O0.72(OH)0.24]Σ2.00

Chemical composition

Barium, Eisen, Magnesium, Natrium, Silicium, Strontium, Titan, Fluor, Sauerstoff

Unit weight: 819.295630384 u; Number of atoms in the formula: 30.265

Info

Empirical formula:

(Ba0.865Sr0.44K0.46Na0.26)5(Na2.38Ca0.09Fe0.47Mn0.06)(Ti2.79Mg0.09Fe0.035Nb0.06Zr0.015Ta0.01)(Si3.99Al0.01)O16[F1.04O0.72(OH)0.24]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.03

0.24

0.79

1.0079470

0.2419073
Oxygen

O

33.12

16.96

56.04

15.9994300

271.3503328
Fluorine

F

2.41

1.04

3.44

18.9984033

19.7583394
Sodium

Na

7.41

2.64

8.72

22.9897702

60.6929933
Magnesium

Mg

0.27

0.09

0.30

24.3050600

2.1874554
Aluminium

Al

0.03

0.01

0.03

26.9815382

0.2698154
Silicon

Si

13.68

3.99

13.18

28.0855300

112.0612647
Potassium

K

2.20

0.46

1.52

39.0983100

17.9852226
Calcium

Ca

0.44

0.09

0.30

40.0784000

3.6070560
Titanium

Ti

16.30

2.79

9.22

47.8671000

133.5492090
Manganese

Mn

0.40

0.06

0.20

54.9380499

3.2962830
Iron

Fe

3.44

0.51

1.67

55.8452000

28.2018260
Strontium

Sr

4.71

0.44

1.45

87.6210000

38.5532400
Zirconium

Zr

0.17

0.02

0.05

91.2242000

1.3683630
Niobium

Nb

0.68

0.06

0.20

92.9063820

5.5743829
Barium

Ba

14.50

0.87

2.86

137.3277000

118.7884605
Tantalum

Ta

0.22

0.01

0.03

180.9479100

1.8094791

Analysis wt%

Na2O 10.01,
K2O 2.65,
MgO 0.43,
CaO 0.64,
SrO 5.59,
BaO 16.23,
MnO 0.50,
FeO 4.44,
Al2O3 0.08,
TiO2 27.31,
ZrO2 0.22,
Nb2O5 0.91,
Ta2O5 0.15,
SiO2 29.35,
F 2.41,
H2O 0.26,
Total 101.18 wt%

Strunz 9th edition incl. updates

9.BE.25

9: Silikate (Germanate)
B: Gruppensilikate (Sorosilikate)
E: Si2O7 Gruppen mit zusätzlichen Anionen; Kationen in oktahedraler [6] und größerer Koordination
25:Lamprophyllit-Gruppe

IMA status

Anerkannt von der CNMNC in Newsletter 35 im Jan. 2017

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Seidozerite supergroup  ⇒ Lamprophyllite group

Optical Properties

Color

braun

Lustre

Glasglanz, Perlglanz

max. Birefringence

0.039
Birefringence chart\! Fluorbarytolamprophyllite title=Birefringence chart Fluorbarytolamprophyllite

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

α = 1.738(3)

RI value β

β = 1.745(4)

RI value γ / ε

γ = 1.777(4)

2V angle

Biaxial +; 55(5)° (gemessen) 51° (berechnet)

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

19.520(5)

Cell parameters b (Å)

7.0995(17)

Cell parameters c (Å)

5.3896(20)

Cell parameters a/b or c/a

2.749

Cell parameters c/b

0.759

Cell parameters α

90°

Cell parameters β

96.657(23)°

Cell parameters γ

90°

Z

2

Volumne (ų)

741.867

Kristall structure

Struktur bestimmt

X-Ray Powder Diffraction

9.692(40), 3.726(59), 3.414(67), 3.230(96), 3.013(53), 2.780(100), 2.662(52), 2.135(44)
XRD chart Fluorbarytolamprophyllite

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

Physical Properties

Hardness (Mohs)

2.5

Density (g/cm³)

3.662 (berechnet)

3.667 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Kandalakscha/Niva agpaitische Syenit Intrusion

Type material

Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia

Collection number of type material

4916/1, 4916/2

Paragenesis of type material

Hauptbestandteile des Gesteins sind Kaliumfeldspat, Ti-reiches Aegirinaugit, Aenigmatit, alkalische Amphibole, Astrophyllit, Natrolith und Ferripyrophyllit.

Preface

Author (Name, Year)

Maria I. Filina, Sergey M. Aksenov, Nikita V. Chukanov, Natalia V. Sorokhtina, Natalia N. Kononkova, Dmitriy I. Belakovskiy, Sergey N. Britvin, Lia N. Kogarko, Ramiza K. Rastsvetaeva, Ivan G. Bystrov und Alexandr D. Chervonnyi

References

Filina, M.I., Aksenov, S.M., Chukanov, N.V., Sorokhtina, N.V., Kononkova, N.N., Belakovskiy, D.I., Britvin, S.N., Kogarko, L.N., Rastsvetaeva, R.K., Bystrov, I.G. and Chervonnyi, A.D. (2017) Fluorbarytolamprophyllite, IMA 2016-089. CNMNC Newsletter No. 35, February 2017, page 211; Mineralogical Magazine, 81, 209-213

Maria I. Filina, Sergey M. Aksenov, Natalia V. Sorokhtina, Nikita V. Chukanov, Natalia N. Kononkova, Dmitriy I. Belakovskiy, Sergey N. Britvin, Lia N. Kogarko, Alexandr D. Chervonnyi, Ramiza K. Rastsvetaeva - The new mineral fluorbarytolamprophyllite, (Ba,Sr,K)2[(Na,Fe2+)3TiF2][Ti2(Si2O7)2O2] and chemical evolution of lamprophyllite-group minerals in agpaitic syenites of the Kola Peninsula - Mineralogy and Petrology, August 2019, Volume 113, Issue 4, pp 533–553

IMA group assignments

Other languages

German

Fluorbarytolamprophyllit

English

Fluorbarytolamprophyllite

Russian

Фторбаритолампрофиллит

CNMNC (IMA)-Number

IMA 2016-089

CNMNC symbol

Symbol

Fblmp

Locations with GPS information