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Yttrocolumbite-(Y) (Yttrocolumbit-(Y))

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Yttrocolumbit-(Y)
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Yttrocolumbit-(Y)
Etwa großer 42 mm x 30 mm Yttrocolumbit-(Y)-Kristall von Evje in Norwegen.
Copyright: Klaus Schäfer; Contribution: Klaus Schäfer
Collection: Klaus Schäfer, Collection number: SyS-YttCY-3-1-1
Location: Norwegen/Agder, Provinz/Setesdal/Evje og Hornnes
Mineral: Yttrocolumbite-(Y)
Image: 1700501584
License: Usage for Mineralienatlas project only
Yttrocolumbit-(Y) (SNr: SyS-YttCY-3-1-1)

Etwa großer 42 mm x 30 mm Yttrocolumbit-(Y)-Kristall von Evje in Norwegen.

Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2023-11-20
Locality: Evje og Hornnes / Setesdal / Agder, Provinz / Norwegen

Collectors Summary

Color schwarz
Streak color braun
Lustre Glasglanz
Hardness (Mohs) 5 - 6
Crystal System orthorhombisch,

Additional information / Summary

Möglicherweise Samarskit

Chemism

Chemical formula

(Y,U,Fe2+)(Nb,Ta)O4

Chemical composition

Eisen, Niob, Tantal, Yttrium, Sauerstoff, Uran

Unit weight: 309.2511891 u; Number of atoms in the formula: 6

Info

Empirical formula:

(Y0.6U0.3Fe0.1)(Nb0.75Ta0.25)O4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

20.69

4

66.67

15.9994300

63.9977200

Iron

Fe

1.81

0.1

1.67

55.8452000

5.5845200

Yttrium

Y

17.25

0.6

10.00

88.9058520

53.3435112

Niobium

Nb

22.53

0.75

12.50

92.9063820

69.6797865

Tantalum

Ta

14.63

0.25

4.17

180.9479100

45.2369775

Uranium

U

23.09

0.3

5.00

238.0289130

71.4086739

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

Lapis Classification

IV/D.19-080

IV: OXIDE
D: Oxide mit Verhältnis Metall : Sauerstoff = 1:2 (MO2 und verwandte Verbindungen)

Dana 8th edition

08.01.03.02

08: Multiple Oxides with Nb, Ta, and Ti
01: Multiple Oxides with Nb, Ta, and Ti where A BO4
03: Yttroantalalite-Yttrocolumbite Series

IMA status

Originalbeschrieben als Yttrocolumbit, Levinson Typ- Anhängsel von der CNMMN (1987) zugeordnet. Möglicherweise aber Samarskit

Mineral status

Mineralstatus fragwürdig

Optical Properties

Color

schwarz

Streak color

braun

Diaphaneity (Transparency)

teilweise durchscheinend bis opak

Lustre

Glasglanz

Crystallography

Crystal System

orthorhombisch

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Physical Properties

Hardness (Mohs)

5 - 6

Density (g/cm³)

5.49 (gemessen)

(Co-)Type locality

(Co-)Type locality

Mosambik/Zambezia, Provinz/Alto Ligonha Pegmatite

Preface

Name from

Chemischen Zusammensetzung Yttrium und der Ähnlichkeit zu Columbit

Author (Name, Year)

Dana, 1837

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: Ionizing radiation: Radioaktiv

References

Hey's Mineral Index (A. M. Clark) 3rd ed (1993), 768

Other languages

Spanish

Itrocolumbita-(Y)

German

Yttrocolumbit-(Y)

English

Yttrocolumbite-(Y)

French

Yttrocolumbite-(Y)

Japanese

イットリウムイットロコルンブ石

CNMNC symbol

Symbol

Yclb-Y

Locations with GPS information

IDs

GUSID (Global unique identifier short form) USRfx-uQKUiL52LzK_J0xQ
GUID (Global unique identifier) C75F2451-90EB-4829-8BE7-62F32BF274C5
Database ID 4242