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Gramaccioliite-(Y)

Pictures (6 Images total)

Gramaccioliit-(Y)
Views (File:
1579535664
): 434
Gramaccioliit-(Y)
Ritterpass Binntal; Bildbreite 2,3 mm
Copyright: Ulrich Hansper; Contribution: Ulrich Hansper
Collection: Ulrich Hansper
Location: Schweiz/Wallis, Kanton/Goms, Bezirk/Binntal/Grengiols/Chummibort-Gebiet/Ritter Pass (Ritterchumme)
Mineral: Gramaccioliite-(Y)
Image: 1579535664
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Gramaccioliit-(Y)

Ritterpass Binntal; Bildbreite 2,3 mm

Collection: Ulrich Hansper
Copyright: Ulrich Hansper
Contribution: Ulrich Hansper 2020-01-20
Locality: Ritter Pass (Ritterchumme) / Chummibort-Gebiet / Grengiols / Binntal / Goms, Bezirk / Wallis, Kanton / Schweiz
Gramaccioliite-(Y)
Views (File:
1401615338
): 1039
Gramaccioliite-(Y)
Black crystal; FOV 2 x 1.5 mm; Sambuco gramaccioliite site (Sambuco “historical” site), Cuneo Province, Piedmont, Italy
Copyright: Roberto Bosi; Contribution: Roberto Bosi
Collection: Roberto Bosi
Location: Italien/Piemont (Piemonte), Region/Cuneo, Provinz/Valle Stura/Sambuco/Pianche di Vinadio
Mineral: Gramaccioliite-(Y)
Image: 1401615338
License: Usage for Mineralienatlas project only
Gramaccioliite-(Y)

Black crystal; FOV 2 x 1.5 mm; Sambuco gramaccioliite site (Sambuco “historical” site), Cuneo Province, Piedmont, Italy

Collection: Roberto Bosi
Copyright: Roberto Bosi
Contribution: Roberto Bosi 2014-06-01
Locality: Pianche di Vinadio / Sambuco / Valle Stura / Cuneo, Provinz / Piemont (Piemonte), Region / Italien
Gramaccioliit-(Y)
Views (File:
1579459785
): 335
Gramaccioliit-(Y)
Ritterpass Binntal; Bildbreite 1,2 mm
Copyright: Ulrich Hansper; Contribution: Ulrich Hansper
Collection: Ulrich Hansper
Location: Schweiz/Wallis, Kanton/Goms, Bezirk/Binntal/Grengiols/Chummibort-Gebiet/Ritter Pass (Ritterchumme)
Mineral: Gramaccioliite-(Y)
Image: 1579459785
License: Usage for Mineralienatlas project only
Gramaccioliit-(Y)

Ritterpass Binntal; Bildbreite 1,2 mm

Collection: Ulrich Hansper
Copyright: Ulrich Hansper
Contribution: Ulrich Hansper 2020-01-19
Locality: Ritter Pass (Ritterchumme) / Chummibort-Gebiet / Grengiols / Binntal / Goms, Bezirk / Wallis, Kanton / Schweiz
Gramaccioliit-(Y)
Views (File:
1579459893
): 290
Gramaccioliit-(Y)
Ritterpass Binntal; Bildbreite 1,2 mm
Copyright: Ulrich Hansper; Contribution: Ulrich Hansper
Collection: Ulrich Hansper
Location: Schweiz/Wallis, Kanton/Goms, Bezirk/Binntal/Grengiols/Chummibort-Gebiet/Ritter Pass (Ritterchumme)
Mineral: Gramaccioliite-(Y)
Image: 1579459893
License: Usage for Mineralienatlas project only
Gramaccioliit-(Y)

Ritterpass Binntal; Bildbreite 1,2 mm

Collection: Ulrich Hansper
Copyright: Ulrich Hansper
Contribution: Ulrich Hansper 2020-01-19
Locality: Ritter Pass (Ritterchumme) / Chummibort-Gebiet / Grengiols / Binntal / Goms, Bezirk / Wallis, Kanton / Schweiz
Gramaccioliit-(Y)
Views (File:
1579535778
): 297
Gramaccioliit-(Y)
Ritterpass Binntal; Bildbreite 2,3 mm
Copyright: Ulrich Hansper; Contribution: Ulrich Hansper
Collection: Ulrich Hansper
Location: Schweiz/Wallis, Kanton/Goms, Bezirk/Binntal/Grengiols/Chummibort-Gebiet/Ritter Pass (Ritterchumme)
Mineral: Gramaccioliite-(Y)
Image: 1579535778
License: Usage for Mineralienatlas project only
Gramaccioliit-(Y)

Ritterpass Binntal; Bildbreite 2,3 mm

Collection: Ulrich Hansper
Copyright: Ulrich Hansper
Contribution: Ulrich Hansper 2020-01-20
Locality: Ritter Pass (Ritterchumme) / Chummibort-Gebiet / Grengiols / Binntal / Goms, Bezirk / Wallis, Kanton / Schweiz
Gramaccioliit-(Y)
Views (File:
1579535891
): 208
Gramaccioliit-(Y)
Ritterpass Binntal; Bildbreite 2,3 mm
Copyright: Ulrich Hansper; Contribution: Ulrich Hansper
Collection: Ulrich Hansper
Location: Schweiz/Wallis, Kanton/Goms, Bezirk/Binntal/Grengiols/Chummibort-Gebiet/Ritter Pass (Ritterchumme)
Mineral: Gramaccioliite-(Y)
Image: 1579535891
License: Usage for Mineralienatlas project only
Gramaccioliit-(Y)

Ritterpass Binntal; Bildbreite 2,3 mm

Collection: Ulrich Hansper
Copyright: Ulrich Hansper
Contribution: Ulrich Hansper 2020-01-20
Locality: Ritter Pass (Ritterchumme) / Chummibort-Gebiet / Grengiols / Binntal / Goms, Bezirk / Wallis, Kanton / Schweiz

Collectors Summary

Color schwarz
Lustre Metallglanz
Hardness (Mohs) 6
Cleavages nicht beobachtet
Fracture muschelig
Crystal System trigonal, R3

Chemism

Chemical formula

(Pb,Sr)(Y,Mn)(Fe3+)2(Ti,Fe3+)18O38

Additional chem. information

Y-Analog von Senait und Pb-Analog von Dessauit-(Y)

Chemical composition

Blei, Eisen, Mangan, Strontium, Titan, Yttrium, Sauerstoff

Unit weight: 1874.904641475 u; Number of atoms in the formula: 60

Info

Empirical formula:

(Pb0.75Sr0.25)(Y0.75Mn0.25)(Fe)2(Ti0.75Fe0.25)18O38

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

32.43

38

63.33

15.9994300

607.9783400

Titanium

Ti

34.47

13.5

22.50

47.8671000

646.2058500

Manganese

Mn

0.73

0.25

0.42

54.9380499

13.7345125

Iron

Fe

19.36

6.5

10.83

55.8452000

362.9938000

Strontium

Sr

1.17

0.25

0.42

87.6210000

21.9052500

Yttrium

Y

3.56

0.75

1.25

88.9058520

66.6793890

Lead

Pb

8.29

0.75

1.25

207.2100000

155.4075000

Analysis wt%

TiO2 : 59.47, Fe2O3 : 24.14, ZnO : 0.99, MnO : 1.45, Ce2O3 : 0.70, Y2O3 : 3.03, PbO : 7.53, SrO : 1.56, Ln2O3 : 4.07 (Ref: European Journal of Mineralogy 2004)

Strunz 9th edition incl. updates

4.CC.40

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
C: Metall: Sauerstoff = 2: 3,3: 5, und vergleichbare
C: Mit großen und mittelgroßen Kationen
40:Crichtonit-Gruppe

Lapis Classification

IV/C.09-062

IV: OXIDE
C: Oxide mit Verhältnis Metall : Sauerstoff = 2:3 (M2O3 und verwandte Verbindungen)
9: Crichtonit-Gruppe

Classification by Hölzel

4.CE.420

4: OXIDES
C: R2O3 Sesquioxides
E: Other complex Oxides, mostly hextrig
4: Senaite-Group

Dana 8th edition

08.05.01.11

08: Multiple Oxides with Nb, Ta, and Ti
05: Multiple Oxides with Nb, Ta, and Ti
01: Crichtonite group (ABC18 T2 O38)

IMA status

anerkannt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Crichtonite Group

Optical Properties

Color

schwarz

Diaphaneity (Transparency)

opak

Lustre

Metallglanz

Crystallography

Crystal System

trigonal

Class (H-M)

3

Space Group number

148

Space Group

R3

Cell parameters a (Å)

10.411

Cell parameters b (Å)

-

Cell parameters c (Å)

20.97

Cell parameters a/b or c/a

2.014

Cell parameters c/b

-

Z

3

Volume (ų)

1968.403

Crystal structure

aufgeklärt, siehe Thomas Theye, Frédéric Hatert, Ewald Ockenga, Christian Bertoldi, and Christian Lathe: Gramaccioliite-(Y): paragenesis chemistry, and structure in a new occurrence, Samos Island, Greece. Eur J Mineral 22 (2010) S.443-452.

X-Ray Powder Diffraction

3.002(100),
2.892(70),
2.852(50),
2.434(50),
2.258(70),
2.147(50),
1.809(60),
1.606(90)

XRD chart Gramaccioliite-(Y)

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

6

Density (g/cm³)

4.66 (berechnet)

4.745 ( ρ calc. Mineralienatlas )

Cleavages

nicht beobachtet

Fracture

muschelig

Tenacity

spröde

Preface

Author (Name, Year)

Pasero & Olmi & Orlandi, 2002

References

International Mineralogical Association, General Meeting Program Abstracts 18 (2002), 138.

European Journal of Mineralogy 16 (2004), 171.

Minerals and Museums 5 (2004).

American Mineralogist 89 (2004), 1827.

IMA group assignments

Other languages

Spanish

Davidita-(Y)

French

Davidite-(Y)

German

Gramaccioliit-(Y)

Spanish

Gramaccioliita-(Y)

English

Gramaccioliite-(Y)

Russian

Грамаччиолиит-(Y)

Traditional Chinese

鉛釔鐵鈦礦

Simplified Chinese

铅钇铁钛矿

Japanese

イットロダビッド石

Alternative Name

German

Davidit-(Y)

English

Davidite-(Y)

Davidite-(Y)

CNMNC (IMA)-Number

IMA 2001-034

CNMNC symbol

Symbol

Gmc-Y

Locations with GPS information

IDs

GUSID (Global unique identifier short form) -se_KiiyIUih5KfqZV7RwQ
GUID (Global unique identifier) 2ABFC7FA-B228-4821-A1E4-A7EA655ED1C1
Database ID 1438