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Nenadkevichite (Nenadkevichit)

Pictures (16 Images total)

Nenadkevichit
Views (File:
1303423810
): 691
Nenadkevichit
Nenadkevichit auf Aegirin, Kristallgröße: 0,6 mm, Fundort: Poudrette Quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Jason B. Smith; Contribution: thdun5
Location: Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Nenadkevichite
Image: 1303423810
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Nenadkevichit

Nenadkevichit auf Aegirin, Kristallgröße: 0,6 mm, Fundort: Poudrette Quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Jason B. Smith
Contribution: thdun5 2011-04-22
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada
Nenadkevichit
Views (File:
1221491433
): 929
Nenadkevichit
Bildbreite: 1,5 mm; Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Nenadkevichite
Image: 1221491433
Rating: 8 (votes: 2)
License: Usage for Mineralienatlas project only
Nenadkevichit

Bildbreite: 1,5 mm; Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Stephan Wolfsried
Contribution: Hg 2008-09-15
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada
Nenadkevichit
Views (File:
1221555080
): 810
Nenadkevichit
Bildbreite: 4 mm; Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Nenadkevichite
Image: 1221555080
Rating: 8 (votes: 2)
License: Usage for Mineralienatlas project only
Nenadkevichit

Bildbreite: 4 mm; Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Stephan Wolfsried
Contribution: Hg 2008-09-16
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada
Nenadkevichit
Views (File:
1221555032
): 896
Nenadkevichit
Bildbreite: 3 mm; Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Nenadkevichite
Image: 1221555032
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Nenadkevichit

Bildbreite: 3 mm; Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Stephan Wolfsried
Contribution: Hg 2008-09-16
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada
Nenadkevichit-Tafel auf Aegirin-Nadeln
Views (File:
1165570720
): 425
Nenadkevichit-Tafel auf Aegirin-Nadeln
Fundort Mont Saint-Hilaire, Quebéc, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Nenadkevichite
Image: 1165570720
Rating: 6.5 (votes: 2)
License: Usage for Mineralienatlas project only
Nenadkevichit-Tafel auf Aegirin-Nadeln

Fundort Mont Saint-Hilaire, Quebéc, Kanada
Copyright: Stephan Wolfsried
Contribution: Hg 2006-12-08
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada
Nenadkevichit
Views (File:
1275739285
): 420
Nenadkevichit
Nenadkevichit auf Aegirin. Kristallgröße: 0,7 mm, Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Jason B. Smith; Contribution: thdun5
Location: Kanada/Québec/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Nenadkevichite
Image: 1275739285
Rating: 7 (votes: 2)
License: Usage for Mineralienatlas project only
Nenadkevichit

Nenadkevichit auf Aegirin. Kristallgröße: 0,7 mm, Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Jason B. Smith
Contribution: thdun5 2010-06-05
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada

You find additional Nenadkevichit specimen at the Geolitho Museum

Collectors Summary

Color rötlichbraun
Streak color blassrosa
Hardness (Mohs) 5
Solubility +++ Säuren
Crystal System orthorhombisch, Pbam

Chemism

Chemical formula

Na6-8(Nb,Ti)4[(OH,O)2|Si4O12]2·8H2O

Chemical composition

Natrium, Niob, Silicium, Titan, Sauerstoff, Wasserstoff

Unit weight: 1307.3293504 u; Number of atoms in the formula: 74

Info

Empirical formula:

Na7(Nb0.75Ti0.25)4[((OH)0.75O0.25)2Si4O12]2·8H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.46

19

25.68

1.0079470

19.1509930
Oxygen

O

44.06

36

48.65

15.9994300

575.9794800
Sodium

Na

12.31

7

9.46

22.9897702

160.9283914
Silicon

Si

17.19

8

10.81

28.0855300

224.6842400
Titanium

Ti

3.66

1

1.35

47.8671000

47.8671000
Niobium

Nb

21.32

3

4.05

92.9063820

278.7191460

Analysis wt%

Na2O : 6.03, K2O : 1.41, CaO : 5.43, TiO2 : 8.72, Nb2O5 : 29.89, SiO2 : 37.74, H2O : 11.26 (Ref: Neues Jahrbuch für Mineralogie, (Monatshefte) 86)

Strunz 9th edition incl. updates

9.CE.40

9: Silikate (Germanate)
C: Ringsilikate (Cyclosilikate)
E: [Si4O12]8- vierer-Einfachringe, ohne inselartige komplexe [Anionen]
40:Nenadkevichit-Gruppe

Lapis Classification

VIII/E.07-020

VIII: SILIKATE
E: Ringsilikate
7: Viererringe [Si4O12] 8-; Labuntsovit-Gruppe

Classification by Hölzel

9.CB.600

9: SILICATES
C: Cyclosilicates
B: ~[Si4O12]8-, ~[Si4O10]4--Rings
6: Labuntsovite-Subgroup - Orthorhombic

Dana 8th edition

60.01.03a.01

60: Cyclosilicates Cyclosilicate Four-Membered Rings
01: Cyclosilicates Cyclosilicate Four-Membered Rings as Titanosilicates
03a: Labuntsovite Group (Nenadkevichite subgroup Orthorhombic [Pbam])

IMA status

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

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Labuntsovite supergroup  ⇒ Nenadkevichite group

Optical Properties

Color

rötlichbraun

Streak color

blassrosa

max. Birefringence

0.126
Birefringence chart\! Nenadkevichite title=Birefringence chart Nenadkevichite

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

1.659

RI value β

1.686

RI value γ / ε

1.785

Ri mean

1.710

2V angle

Biaxial (+) 46°

Optical Data Luminescence

Color SW-UV (254nm)

  

grün

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

55

Space Group

Pbam

Cell parameters a (Å)

7.328

Cell parameters b (Å)

14.123

Cell parameters c (Å)

7.115

Cell parameters a/b or c/a

0.519

Cell parameters c/b

0.504

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

1

Volumne (ų)

736.355

X-Ray Powder Diffraction

7.11(100),
6.50(40),
5.01(40),
3.256(90),
3.178(50),
3.120(30),
2.554(40),
1.730(40)
XRD chart Nenadkevichite

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)

2.86 (gemessen)

2.948 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Lovozero/Karnasurt, Berg/Pegmatit Nr. 61

Preface

Author (Name, Year)

Kuz'menko & Kazakova, 1955

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 578

IMA group assignments

 
Labuntsovite supergroup
 
 
 

 
 
Nenadkevichite group
 
 
 

 
 
 
Korobitsynite
Na6-8(Ti,Nb)4[(OH,O)2|Si4O12]2·8H2O
orthorhombisch
Pbam

 
 
 
Nenadkevichite
Na6-8(Nb,Ti)4[(OH,O)2|Si4O12]2·8H2O
orthorhombisch
Pbam

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Actuality: 17. Mar 2023 - 01:37:16

Other languages

German

Nenadkevichit

Spanish

Nenadkevichita

French

Nenadkevichite

English

Nenadkevichite

Russian

Ненадкевичит

Traditional Chinese

矽鈦鈮鈉礦

Simplified Chinese

硅钛铌钠矿

Alternative Name

Traditional Chinese

矽鈦鈮鈉石

Simplified Chinese

硅钛铌钠石

CNMNC symbol

Symbol

Nkv

Locations with GPS information