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Grattarolaite (Grattarolait)

Pictures (1 Images total)

Rodolicoit eng verwachsen mit Grattarolait
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Rodolicoit eng verwachsen mit Grattarolait
Castelnuovo Mine,Cavriglia,Arezzo/Toskana,Italien; Größe ca.4 x 3mm
Copyright: Haubi; Contribution: Haubi
Collection: Haubi
Location: Italien/Toskana (Toscana)/Arezzo, Provinz/Valdarno (Val d'Arno)/Cavriglia/Santa-Barbara-Lignit-Distrikt/Mina Castelnuovo
Mineral: Grattarolaite, Rodolicoite
Image: 1528645684
License: Usage for Mineralienatlas project only
Rodolicoit eng verwachsen mit Grattarolait

Castelnuovo Mine,Cavriglia,Arezzo/Toskana,Italien; Größe ca.4 x 3mm

Collection: Haubi
Copyright: Haubi
Contribution: Haubi 2018-06-10
Locality: Mina Castelnuovo / Santa-Barbara-Lignit-Distrikt / Cavriglia / Valdarno (Val d'Arno) / Arezzo, Provinz / Toskana (Toscana) / Italien

Collectors Summary

Color rötlichbraun
Streak color braun
Cleavages keine
Crystal System trigonal, R3m

Chemism

Chemical formula

Fe3+3[O3|PO4]

Chemical composition

Eisen, Phosphor, Sauerstoff

Unit weight: 310.5053712 u; Number of atoms in the formula: 11

Info

Empirical formula:

Fe3[O3PO4]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

36.07

7

63.64

15.9994300

111.9960100

Phosphorus

P

9.98

1

9.09

30.9737612

30.9737612

Iron

Fe

53.96

3

27.27

55.8452000

167.5356000

Analysis wt%

Fe2O3 : 77.14, P2O5 : 22.86 (Ref: berechnet)

Strunz 9th edition incl. updates

8.BE.10

8: Phosphate, Arsenate, Vanadate
B: Phosphate, etc., mit weitere Anionen, ohne H2O
E: Mit ausschließlich mittelgroßen [Kationen] (OH, etc.):RO4 > 2:1
10:Grattarolait-Gruppe

Lapis Classification

VII/B.09-015

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
B: Wasserfreie Phosphate, mit fremden Anionen F,Cl,O,OH
9: Mittelgroße Kationen: Mg-Mn-Fe-Cu-Zn

Classification by Hölzel

8.BG.150

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
G: Phosphates, C medium, without OH
1: Other Anion: O

Dana 8th edition

38.05.12.01

38: Anhydrous Phosphates, etc
05: Anhydrous Phosphates, etc with miscellaneous formulae

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

rötlichbraun

Streak color

braun

Crystallography

Crystal System

trigonal

Class (H-M)

3m

Space Group number

160

Space Group

R3m

Cell parameters a (Å)

7.994

Cell parameters b (Å)

-

Cell parameters c (Å)

6.855

Cell parameters a/b or c/a

0.858

Cell parameters c/b

-

Z

3

Volume (ų)

379.373

X-Ray Powder Diffraction

3.09(100),
2.446(20),
2.078(20),
1.997(10),
1.845(10),
1.623(20),
1.545(10),
1.440(20)

XRD chart Grattarolaite

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

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

4.08 (berechnet)

4.077 ( ρ calc. Mineralienatlas )

Cleavages

keine

Preface

Author (Name, Year)

Cipriani & Mellini & Pratesi & Viti, 1997

References

European Journal of Mineralogy 9 (1997), 1101

Other languages

German

Grattarolait

French

Grattarolaite

English

Grattarolaite

Spanish

Grattarolaíta

Russian

Граттаролаит

Russian

Граттаролит

CNMNC (IMA)-Number

IMA 1995-037

CNMNC symbol

Symbol

Gra

IDs

GUSID (Global unique identifier short form) tE9m2PaPvUGyl98SGDbY_g
GUID (Global unique identifier) D8664FB4-8FF6-41BD-B297-DF121836D8FE
Database ID 1444