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

Pictures (19 Images total)

Samarskit-(Y) mit Magnetit
Views (Image: 1167410883): 1766
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 (Image: 1237371220): 3548, Rating: 8.5
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 (Image: 1167410796): 2696
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 (Image: 1237371115): 2607
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 (Image: 1514697575): 788
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 (Image: 1245601022): 1821
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

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

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

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

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

German pages

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

English pages

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

Russian pages

 Webmineral.ru - search for: Самарскит-(Y)

Mineral Dealer

German pages

 hausen - Mineralgroßhandel - search for: Samarskit-(Y)
Crystal-Treasure.com - search for: Samarskit-(Y)
Bosse - search for: Samarskit-(Y)
Edelsteine Neuburg - Gundolf Fischer - search for: Samarskit-(Y)

Locations with GPS information