https://www.mineral-bosse.de
https://www.mineralbox.biz
https://www.mineraliengrosshandel.com
https://www.edelsteine-neuburg.de
'._('einklappen').'
 

Nioboheftetjernite

Additional Functions

Collectors Summary

Color schwarz
Streak color dunkelbraun, schwarz
Lustre Submetallglanz
Cleavages keine
Fracture uneben
Crystal System monoklin, P2/c
Morphology anedrische Körner und sehr grobe, längliche Kristalle mit einer Länge von bis zu 200 μm in einer Verwachsung

Chemism

Chem­ical formula

ScNbO4

Empir­ical formula (anal­y­sis)

(Sc0.40Fe3+0.37Ti0.15Mn2+0.08)Σ1.00 (Nb0.58Ta0.33W0.03Ti0.03Sn0.02)Σ0.99 O4

Chem­ical com­po­si­tion

Niob, Scandium, Sauerstoff

Unit weight: 237.141886172 u; Number of atoms in the formula: 5.99

Info

Empirical formula:

(Sc0.40Fe0.37Ti0.15Mn0.08)(Nb0.58Ta0.33W0.03Ti0.03Sn0.02)O4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

26.99

4

66.78

15.9994300

63.9977200

Scandium

Sc

7.58

0.4

6.68

44.9559108

17.9823643

Titanium

Ti

3.63

0.18

3.01

47.8671000

8.6160780

Manganese

Mn

1.85

0.08

1.34

54.9380499

4.3950440

Iron

Fe

8.71

0.37

6.18

55.8452000

20.6627240

Niobium

Nb

22.72

0.58

9.68

92.9063820

53.8857016

Tin

Sn

1.00

0.02

0.33

118.7107000

2.3742140

Tantalum

Ta

25.18

0.33

5.51

180.9479100

59.7128103

Tungsten

W

2.33

0.03

0.50

183.8410000

5.5152300

Anal­y­sis wt%

MgO 0.06,
MnO 2.49,
Fe2O3 12.14,
Sc2O3 11.34,
TiO2 5.94,
SnO2 1.45,
Nb2O5 32.23,
Ta2O5 29.93,
WO3 3.38,
Total 98.96

Strunz 9th edi­tion incl. updates

4.DB.25

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
B: Mit mittelgroßen [Kationen]: Ketten kantenverknüpfter Oktaeder
25:Samarskit-Gruppe

IMA sta­tus

anerkannt - CNMNC Newsletter 55 (2020)

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Wolframite group

Optical Properties

Color

schwarz

Streak color

dunkelbraun, schwarz

Lus­tre

Submetallglanz

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

13

Space Group

P2/c

Cell param­e­ters a (Å)

4.7092(3)

Cell param­e­ters b (Å)

5.6531(4)

Cell param­e­ters c (Å)

5.0530(4)

Cell param­e­ters a/b or c/a

0.833

Cell param­e­ters c/b

0.894

Cell param­e­ters α

90°

Cell param­e­ters β

90.453(3)°

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

134.515

Kristall struc­ture

Wolframite-Gruppe; Struktur ermittelt

X-Ray Pow­der Diffrac­tion

4.722(22), 3.776(22), 3.628(44), 2.961(100), 2.938(83), 2.534(18), 2.472(30), 1.445(21)

XRD chart Nioboheftetjernite

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

Morphol­ogy

anedrische Körner und sehr grobe, längliche Kristalle mit einer Länge von bis zu 200 μm in einer Verwachsung

Physical Properties

Density (g/cm³)

5.855 (berechnet)

5.855 ( ρ calc. Mineralienatlas )

Cleav­ages

keine

Frac­ture

uneben

(Co-)Type locality

(Co-)Type locality

Madagaskar/Analamanga, Region/Ankazobe, Distrikt/Ankazobe-Pegmatit/Anjozorobe/Beronono/Befanamo Pegmatit

Type mate­r­ial

Typisches Material ist in den mineralogischen Sammlungen des Canadian Museum of Nature, 240 McLeod Street, Ottawa, Ontario, Kanada, hinterlegt, Katalognummer CMNMC 51710

Par­a­ge­n­e­sis of type mate­r­ial

Rossovskyit, Ilmenit, Rutil, Thortveitit, Euxenit-(Y), Feldspat, Quarz

Preface

Name from

der Zusammensetzung, Nb-Analog von Heftetjernit

Author (Name, Year)

Inna Lykova, Ralph Rowe, Glenn Poirier, Andrew M. McDonald und Gerald Giester (2021)

References

Lykova, I., Rowe, R., Poirier, G., McDonald, A.M. and Giester, G. (2020) Nioboheftetjernite, IMA 2019-133. CNMNC Newsletter No. 55; Mineralogical Magazine, 84, https://doi.org/10.1180/mgm.2020.39

Inna Lykova; Ralph Rowe; Glenn Poirier ; Andrew M. McDonald; Gerald Giester: Nioboheftetjernite, ScNbO4, a new mineral from the Befanamo Pegmatite, Madagascar. The Canadian Mineralogist Vol. 59, Nr. 2 (2021) S. 445-452.

IMA group assignments

Other languages

German

Nioboheftetjernit

English

Nioboheftetjernite

CNMNC (IMA)-Number

IMA 2019-133

CNMNC symbol

Symbol

Nhef

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

German pages

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

English pages

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

Mineral Dealer

German pages

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