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Nabalamprophyllite (Nabalamprophyllit)

Pictures (2 Images total)

Nabalamprophyllit in Pektolith
Views (File:
1244719438
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Nabalamprophyllit in Pektolith
Bildbreite: 8 mm; Fundort: Kovdor Phlogopitlagerstätte, Kovdor-Massiv, Kola, Murmansk, Russland
Copyright: Pavel M. Kartashov; Contribution: slugslayer
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Kovdor/Kovdor-Phlogopitlagerstätte (Kovdorslyuda)
Mineral: Nabalamprophyllite
Image: 1244719438
Rating: 5 (votes: 2)
License: Usage for Mineralienatlas project only
Nabalamprophyllit in Pektolith

Bildbreite: 8 mm; Fundort: Kovdor Phlogopitlagerstätte, Kovdor-Massiv, Kola, Murmansk, Russland
Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-06-11
Locality: Kovdor-Phlogopitlagerstätte (Kovdorslyuda) / Kovdor / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Nabalamprophyllit
Views (File:
1360592436
): 504
Nabalamprophyllit
Bildbreite: 2 mm, Fundort: Kovdor Phlogopitlagerstätte, Kovdor-Massiv, Kola, Murmansk, Russland
Copyright: Luigi Chiappino; Contribution: thdun5
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Kovdor/Kovdor-Phlogopitlagerstätte (Kovdorslyuda)
Mineral: Nabalamprophyllite
Image: 1360592436
Rating: 4 (votes: 1)
License: Usage for Mineralienatlas project only
Nabalamprophyllit

Bildbreite: 2 mm, Fundort: Kovdor Phlogopitlagerstätte, Kovdor-Massiv, Kola, Murmansk, Russland
Copyright: Luigi Chiappino
Contribution: thdun5 2013-02-11
Locality: Kovdor-Phlogopitlagerstätte (Kovdorslyuda) / Kovdor / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color weiß
Hardness (Mohs) 3
Cleavages vollkommen (010)
Fracture uneben
Crystal System monoklin, P2/m

Chemism

Chemical formula

Na3(Ba,Na)2Ti3[O|(OH,F)|Si2O7]2

Chemical composition

Barium, Natrium, Silicium, Titan, Fluor, Sauerstoff, Wasserstoff

Unit weight: 833.400312825 u; Number of atoms in the formula: 31.5

Info

Empirical formula:

Na3(Ba0.75Na0.25)2Ti3[O((OH)0.75F0.25)Si2O7]2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.18

1.5

4.76

1.0079470

1.5119205
Oxygen

O

33.60

17.5

55.56

15.9994300

279.9900250
Fluorine

F

1.14

0.5

1.59

18.9984033

9.4992016
Sodium

Na

9.65

3.5

11.11

22.9897702

80.4641957
Silicon

Si

13.48

4

12.70

28.0855300

112.3421200
Titanium

Ti

17.23

3

9.52

47.8671000

143.6013000
Barium

Ba

24.72

1.5

4.76

137.3277000

205.9915500

Analysis wt%

Ø SiO2 : 28.75, TiO2 : 27.80, Al2O3 : 0.44, Fe2O3 : 0.78, MnO : 1.10, SrO : 0.65, BaO : 24.12, Na2O : 11.14, K2O : 0.94, F : 1.18, H2O : 1.83 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 2004)

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

Lapis Classification

VIII/C.13-015

VIII: SILIKATE
C: Gruppensilikate
13: Gruppensilikate [Si2O7] 6-, mit tetraederfremden Anionen (O,OH,F); Lamprophyllit-Reihe

Classification by Hölzel

9.BH.335

9: SILICATES
B: Sorosilicates
H: Rosenbuschite-Lamprophyllite-Group

IMA status

anerkannt 2001

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Seidozerite supergroup  ⇒ Lamprophyllite group

Optical Properties

Color

weiß

Diaphaneity (Transparency)

durchscheinend

max. Birefringence

0.049
Birefringence chart\! Nabalamprophyllite title=Birefringence chart Nabalamprophyllite

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

1.750

RI value β

1.755

RI value γ / ε

1.799

Ri mean

1.768

2V angle

Biaxial (+) 40° /gemessen) 37,3 (berechnet)

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

10

Space Group

P2/m

Cell parameters a (Å)

19.741

Cell parameters b (Å)

7.105

Cell parameters c (Å)

5.408

Cell parameters a/b or c/a

2.778

Cell parameters c/b

0.761

Cell parameters α

90°

Cell parameters β

96.67

Cell parameters γ

90°

Z

2

Volumne (ų)

753.391

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

3

VHN (Hardness Vickers)

83 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.58 (berechnet)

3.674 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen (010)

Fracture

uneben

Tenacity

spröde

(Co-)Type locality

(Co-)Type locality

Russland/Ferner Osten, Föderationskreis/Sacha (Sakha, Jakutien, Якутия), Republik/Aldan/Inagli-Massiv/Inagli Chromdiopsid-Lagerstätte

Preface

Occurrences

ultrabasisches Gestein

Author (Name, Year)

Chukanov, Moiseev, Pekov, Lazebnik, Rastsvetaeva, Zayakina, Ferraris, Ivaldi (2004)

References

Chukanov, N.V., et al - Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva 133 (2004) (1), 59-72

Doklady Chemistry 368 (1999), 228

American Mineralogist 90 (2005), 1230

IMA group assignments

Other languages

Spanish

Nabalamprofilita

German

Nabalamprophyllit

French

Nabalamprophyllite

English

Nabalamprophyllite

Russian

Набалампрофиллит

Traditional Chinese

鈉鋇閃葉石

Simplified Chinese

钠钡闪叶石

CNMNC symbol

Symbol

Nlmp

Locations with GPS information