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Norbergite

Pictures (11 Images total)

Zirkon (braun) mit Norbergit (gelb) auf Spinell (schwarz)
Views (Image: 1252349749): 2495
Zirkon (braun) mit Norbergit (gelb) auf Spinell (schwarz)

Bildbreite: 5 mm; Fundort: Limecrest Quarry, Sparta Township, Sussex Co., New Jersey, USA

Copyright: Joachim Esche
Contribution: slugslayer 2009-09-07
Locality: Limecrest Quarry (Limecrest-Southdown quarry) / Sparta Township / Sussex Co. / New Jersey / USA
Norbergit
Views (Image: 1182606359): 1589
Norbergit

Norbergit xx bis 4mm in Matrix; Fundort: Franklin, Sussex Co., New Jersey, USA;

Copyright: thannator
Contribution: thannator 2007-06-23
Locality: Franklin Mining District / Sussex Co. / New Jersey / USA
Norbergit
Views (Image: 1182607156): 1436
Norbergit

Gesamte Stufe, ca. 8cm breit; Fundort: Franklin, Sussex Co., New Jersey, USA;

Copyright: thannator
Contribution: thannator 2007-06-23
Locality: Franklin Mining District / Sussex Co. / New Jersey / USA
Norbergit
Views (Image: 1278148903): 1091
Norbergit

Bildbreite: 6 mm, Fundort: Steinbruch San Vito, San Vito, Ercolano, Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien, Italien

Copyright: Luigi Chiappino
Contribution: thdun5 2010-07-03
Locality: Steinbruch San Vito (Cava San Vito) / San Vito / Ercolano / Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Norbergit
Views (Image: 1299168573): 882
Norbergit

Größe: 1,45 mm; Fundort: Steinbruch San Vito, San Vito, Ercolano, Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien, Italien

Copyright: Enrico Bonacina
Contribution: Hg 2011-03-03
Locality: Steinbruch San Vito (Cava San Vito) / San Vito / Ercolano / Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Norbergit
Views (Image: 1401217517): 284
Norbergit (SNr: A003338)

Blockiger brauner Kristall, BB = 10 mm. Fundort: Franklin, Franklin Mining District, Sussex Co., New Jersey, USA.

Collection: Lithothek der Münchener Micromounter
Copyright: Manfred Früchtl
Contribution: Münchener Micromounter 2014-05-27
Locality: Franklin / Franklin Mining District / Sussex Co. / New Jersey / USA

Collectors Summary

Color weiß, gelb, braun, rot
Streak color weiß
Solubility +++ HF, konz. heiße H2SO4, + HCl, Ultraschallbad!
Crystal System orthorhombisch, Pnam

Chemism

Chem­ical formula

Mg3(SiO4)F2

Chem­ical com­po­si­tion

Magnesium, Silicium, Fluor, Sauerstoff

Unit weight: 202.9952365 u; Number of atoms in the formula: 10

Info

Empirical formula:

Mg3(SiO4)F2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

31.53

4

40.00

15.9994300

63.9977200

Fluorine

F

18.72

2

20.00

18.9984033

37.9968065

Magnesium

Mg

35.92

3

30.00

24.3050600

72.9151800

Silicon

Si

13.84

1

10.00

28.0855300

28.0855300

Anal­y­sis wt%

SiO2 : 29.74, MgO : 58.73, TiO2 : 0.42, F : 16.77, OH : 1.44, H2O : 0.76 (Ref: American Mineralogist 69)

Strunz 9th edi­tion incl. updates

9.AF.40

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
F: Insel(Neso)silikate mit zusätzlichem Anionen; Kationen in [4], [5] und/oder nur [6] Koordination
40:Norbergit-Gruppe

Lapis Clas­sifica­tion

VIII/B.04-010

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen
4: Kationen in tetraedrischer oder oktaedrischer Koordination [4/6]; Humit-Gruppe

Clas­sifica­tion by Hölzel

9.AI.200

9: SILICATES
A: Nesosilicates
I: Nesosilicates with OH
2: Norbergite-Group

Dana 8th edi­tion

52.03.02a.01

52: Nesosilicates Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O
03: Nesosilicates Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
02a: Humite group

IMA sta­tus

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

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Humite polysomatic series

Optical Properties

Color

weiß, gelb, braun, rot

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

max. Birefrin­gence

0.025

Birefringence chart\! Norbergite title=Birefringence chart Norbergite

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

1.559

RI value β

1.564

RI value γ / ε

1.584

Ri mean

1.569

2V angle

Biaxial (+) 50°~

Optical Data Luminescence

Lumi­nes­cence

Norbergit unter Normal- u. KW-UV-Licht
Norbergit unter Normal- u. KW-UV-Licht

fluoreszierend

Color LW-UV (365nm)

 

orangegelb

Color SW-UV (254nm)

 

gelb

SW-UV Intensity

mittel

Most Common Acti­vator

TiO6

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Image ⇒ Luminescence ⇒ excitation ⇒ UV shortwave ~254nm (1 Images total)

Norbergit unter Normal- u. KW-UV-Licht
Views (Image: 1404568391): 301
Norbergit unter Normal- u. KW-UV-Licht

Norbergit in Calcit, Fluoreszenz unter kurzwelligem UV-Licht, Limecrest Qarry, Sparta Township, Sussex Co., New Jersey, USA, 82 x 46 x 29 mm

Collection: Embarak
Copyright: Embarak
Contribution: Embarak 2014-07-05
Locality: Limecrest Quarry (Limecrest-Southdown quarry) / Sparta Township / Sussex Co. / New Jersey / USA

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pnam

Cell param­e­ters a (Å)

4.710

Cell param­e­ters b (Å)

10.272

Cell param­e­ters c (Å)

8.478

Cell param­e­ters a/b or c/a

0.459

Cell param­e­ters c/b

0.825

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

410.175

X-Ray Pow­der Diffrac­tion

4.371(30),
3.058(100),
2.639(70),
2.408(30),
2.337(30),
2.255(70),
2.230(80),
1.724(50)

XRD chart Norbergite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

VHN (Hard­ness Vick­ers)

850 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.1 - 3.2 / Durchschnittlich = 3.15

3.287 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ HF, konz. heiße H2SO4, + HCl, Ultraschallbad!

Preface

Author (Name, Year)

Geijer, 1926

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 587

IMA group assignments


 
 
Mg5(SiO4)2F2
monoklin
P21/a

 
 
Mg9(SiO4)4F2
monoklin
P21/a

 
 
Mg7(SiO4)3(F,OH)2
orthorhombisch
Pbnm

 
 
Mg5(SiO4)2(OH)2
monoklin
P21/c

 
 
Mg9(SiO4)4(OH)2
monoklin
P21/a

 
 
Mg3(SiO4)F2
orthorhombisch
Pnam

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Actuality: 24. Jun 2022 - 02:02:49

Other languages

German

Norbergit

Spanish

Norbergita

French

Norbergite

English

Norbergite

Russian

Норбергит

Simplified Chinese

块硅镁石

Alternative Name

German

Grothin

English

Grothine

CNMNC symbol

Symbol

Nrb

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Норбергит

Mineral Dealer

German pages

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

Locations with GPS information