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Samarskite-(Y) (Samarskit-(Y))

Pictures (19 Images total)

Samarskit-(Y) mit Magnetit
Views (File:
1167410883
): 1966
Samarskit-(Y) mit Magnetit
Bildbreite: 3 mm; Fundort: Laacher See-Vulkangebiet, Eifel, Deutschland
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Deutschland/Rheinland-Pfalz/Ahrweiler, Landkreis/Brohltal, Verbandsgem./Laacher See
Mineral: Samarskite-(Y)
Image: 1167410883
Rating: 10 (votes: 1)
License: Usage for Mineralienatlas project only
Samarskit-(Y) mit Magnetit

Bildbreite: 3 mm; Fundort: Laacher See-Vulkangebiet, Eifel, Deutschland
Copyright: Stephan Wolfsried
Contribution: Hg 2006-12-29
Locality: Laacher See / Brohltal, Verbandsgem. / Ahrweiler, Landkreis / Rheinland-Pfalz / Deutschland
Samarskit-(Y)
Views (File:
1237371220
): 3604, Rating: 8.5
Samarskit-(Y)
Bildbreite: 2,5 mm; Fundort: Laacher See Vulkangebiet, Eifel, Rheinland-Pfalz, Deutschland
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Deutschland/Rheinland-Pfalz/Ahrweiler, Landkreis/Brohltal, Verbandsgem./Laacher See
Mineral: Samarskite-(Y)
Image: 1237371220
Rating: 8.5 (votes: 4)
License: Usage for Mineralienatlas project only
Samarskit-(Y)

Bildbreite: 2,5 mm; Fundort: Laacher See Vulkangebiet, Eifel, Rheinland-Pfalz, Deutschland
Copyright: Stephan Wolfsried
Contribution: Hg 2009-03-18
Locality: Laacher See / Brohltal, Verbandsgem. / Ahrweiler, Landkreis / Rheinland-Pfalz / Deutschland
Samarskit-(Y)
Views (File:
1167410796
): 2756
Samarskit-(Y)
Bildbreite: 1 mm; Fundort: Laacher See-Vulkangebiet, Eifel, Deutschland
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Deutschland/Rheinland-Pfalz/Ahrweiler, Landkreis/Brohltal, Verbandsgem./Laacher See
Mineral: Samarskite-(Y)
Image: 1167410796
Rating: 8.5 (votes: 2)
License: Usage for Mineralienatlas project only
Samarskit-(Y)

Bildbreite: 1 mm; Fundort: Laacher See-Vulkangebiet, Eifel, Deutschland
Copyright: Stephan Wolfsried
Contribution: Hg 2006-12-29
Locality: Laacher See / Brohltal, Verbandsgem. / Ahrweiler, Landkreis / Rheinland-Pfalz / Deutschland
Samarskit-(Y)
Views (File:
1237371115
): 2656
Samarskit-(Y)
Bildbreite: 2,5 mm; Fundort: Laacher See Vulkangebiet, Eifel, Rheinland-Pfalz, Deutschland
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Deutschland/Rheinland-Pfalz/Ahrweiler, Landkreis/Brohltal, Verbandsgem./Laacher See
Mineral: Samarskite-(Y)
Image: 1237371115
Rating: 8.5 (votes: 2)
License: Usage for Mineralienatlas project only
Samarskit-(Y)

Bildbreite: 2,5 mm; Fundort: Laacher See Vulkangebiet, Eifel, Rheinland-Pfalz, Deutschland
Copyright: Stephan Wolfsried
Contribution: Hg 2009-03-18
Locality: Laacher See / Brohltal, Verbandsgem. / Ahrweiler, Landkreis / Rheinland-Pfalz / Deutschland
Samarskit-Y
Views (File:
1514697575
): 837
Samarskit-Y
Größe: 45x29x28 mm; Fundort: Kerberbruch, Tittling, Stützersdorf, Bayern, Deutschland
Copyright: Walter Kellogg; Contribution: slugslayer
Location: Deutschland/Bayern/Niederbayern, Bezirk/Passau, Landkreis/Tittling/Stützersdorf/Kerberbruch
Mineral: Samarskite-(Y)
Image: 1514697575
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Samarskit-Y

Größe: 45x29x28 mm; Fundort: Kerberbruch, Tittling, Stützersdorf, Bayern, Deutschland
Copyright: Walter Kellogg
Contribution: slugslayer 2017-12-31
Locality: Kerberbruch / Stützersdorf / Tittling / Passau, Landkreis / Niederbayern, Bezirk / Bayern / Deutschland
Samarskit-(Y)
Views (File:
1245601022
): 1899
Samarskit-(Y)
Größe: 25x25x20 mm; Fundort: Liaodung-Halbinsel, Provinz Liaoning, China
Copyright: Pavel M. Kartashov; Contribution: slugslayer
Location: China/Liaoning, Provinz/Liaodung-Halbinsel
Mineral: Samarskite-(Y)
Image: 1245601022
Rating: 6.5 (votes: 2)
License: Usage for Mineralienatlas project only
Samarskit-(Y)

Größe: 25x25x20 mm; Fundort: Liaodung-Halbinsel, Provinz Liaoning, China
Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-06-21
Locality: Liaodung-Halbinsel / Liaoning, Provinz / China

You find additional Samarskit-(Y) specimen at the Geolitho Museum

Collectors Summary

Color samtschwarz
Streak color rötlichbraun
Hardness (Mohs) 5.00 - 6.00
Solubility +++ konz. Säuren
Crystal System orthorhombisch, Pbcn

Chemism

Chemical formula

YFe3+Nb2O8

Chemical composition

Eisen, Niob, Yttrium, Sauerstoff

Unit weight: 458.559256 u; Number of atoms in the formula: 12

Info

Empirical formula:

YFeNb2O8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

27.91

8

66.67

15.9994300

127.9954400
Iron

Fe

12.18

1

8.33

55.8452000

55.8452000
Yttrium

Y

19.39

1

8.33

88.9058520

88.9058520
Niobium

Nb

40.52

2

16.67

92.9063820

185.8127640

Analysis wt%

ThO2 : 1.30, ZrO2 : 0.60, MnO : 1.50, FeO : 10.00, Y2O3 : 3.90, U3O8 : 29.60, WO3 : 2.10, Nb2O5 : 38.30, Ta2O5 : 10.20, Ln2O3 : 3.90 (Ref: American Mineralogist 85)

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.19-060

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

Classification by Hölzel

4.DH.160

4: OXIDES
D: Dioxides
H: Wolframite-Group

Dana 8th edition

08.01.11.01

08: Multiple Oxides with Nb, Ta, and Ti
01: Multiple Oxides with Nb, Ta, and Ti where A BO4
11: Samarskite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Columbite supergroup  ⇒ Samarskite group

Optical Properties

Color

samtschwarz

Streak color

rötlichbraun

RI value α / ω / n

2.20

RI value β

metam.

Ri mean

2.20

2V angle

i metam.

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

60

Space Group

Pbcn

Cell parameters a (Å)

5.642

Cell parameters b (Å)

9.914

Cell parameters c (Å)

5.229

Cell parameters a/b or c/a

0.569

Cell parameters c/b

0.527

Cell parameters α

90°

Cell parameters β

93.83

Cell parameters γ

90°

Z

2

Volumne (ų)

292.483

Kristall structure

Lange Zeit umstritten, da nur metamikte xx bekannt. Siehe Gian Carlo Capitani, Enrico Mugnaioli, Alessandro Guastoni: What is the actual structure of samarskite-(Y)? A TEM investigation of metamict samarskite from the Garnet Codera dike pegmatite (Central Italian Alps). American Mineralogist, Vol. 101 (2016) S.1679-1690.

In 2019 geklärt, siehe Sergey N. Britvin, Igor V. Pekov, Maria G. Krzhizhanovskaya, Atali A. Agakhanov, Bernd Ternes, Willi Schüller, Nikita V. Chukanov: Redefinition and crystal chemistry of samarskite-(Y), YFe3+Nb2O8: cation-ordered niobate structurally related to layered double tungstates. Physics and Chemistry of Minerals Volume 46, Issue 7 (2019) S. 727–741.

X-Ray Powder Diffraction

3.728(10),
3.030(100),
2.843(10),
2.603(10),
2.495(10),
1.920(10),
1.863(10),
1.767(10)
XRD chart Samarskite-(Y)

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

5.00 - 6.00

VHN (Hardness Vickers)

530 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

5.207 ( ρ calc. Mineralienatlas )

Instability

+++ konz. Säuren

(Co-)Type locality

(Co-)Type locality

Russland/Ural, Föderationskreis/Tscheljabinsk, Oblast/Ilmen-Gebirge/Naturschutzgebiet Ilmen/Blyumovskaya

Preface

Author (Name, Year)

Rose, 1847

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

Handbook of Mineralogy (Anthony et al.), 3 (1997), 489

IMA group assignments

 
Columbite supergroup
 
 
 

 
 
Samarskite group
 
 
 

 
 
 
Calciosamarskite
(Ca,Fe,Y)(Nb,Ta,Ti)O4
monoklin
 

 
 
 
Ishikawaite
(U,Fe,Y)NbO4
monoklin
 

 
 
 
Samarskite-(Yb)
YbNbO4
monoklin
P2/c

 
 
 
Samarskite-(Y)
YFe3+Nb2O8
orthorhombisch
Pbcn

 
 
 
Shakhdaraite-(Y)
ScYNb2O8
monoklin
P2/c

 
 
 
Srilankite
TiO2
orthorhombisch
Pbcn

 
 
 
Yttrotantalite-(Y)
(Y,U,Fe2+)(Ta,Nb)(O,OH)4
orthorhombisch
 

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Actuality: 21. Mar 2023 - 23:38:46

Varieties

Uransamarskite

Uranhaltiger Samarskit-(Y)

Other languages

German

Samarskit-(Y)

Spanish

Samarskita-(Y)

English

Samarskite-(Y)

French

Samarskite-(Y)

Russian

Самарскит-(Y)

Japanese

ｻﾏﾙｽｷｰ石

Alternative Name

German

Adelfolit

Spanish

Adelfolita

Adelfolite

German

Adelpholit

Spanish

Adelpholita

Adelpholite

Ampangabite

German

Ampangabéit

Spanish

Ampangabéita

Italian

Ampangabéita

Eytlandite

Hydroeuxenite

Hydrosamarskite

German

Nuevit

Spanish

Nuevita

Nuevite

German

Samarskit

Spanish

Samarskita

Samarskite

Uranoniobit (of Rose)

Uranotantal

Yttroniobit

Japanese

サマルスキー石

CNMNC symbol

Symbol

Smk-Y

Locations with GPS information