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Attakolite

Pictures (2 Images total)

Attakolith
Views (File:
1272381144
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Attakolith
Bildbreite: 3 mm, Fundort: Bergwerk Monte Tamara (Miniera di Monte Tamara), Nuxis, Carbonia-Iglesias, Sardinien (Sardegna), Italien
Copyright: Luigi Chiappino; Contribution: thdun5
Location: Italien/Sardinien (Sardegna), Region/Sud Sardegna, Provinz/Nuxis/Bergwerk Monte Tamara (Miniera di Monte Tamara)
Mineral: Attakolite
Image: 1272381144
Rating: 4 (votes: 1)
License: Usage for Mineralienatlas project only
Attakolith

Bildbreite: 3 mm, Fundort: Bergwerk Monte Tamara (Miniera di Monte Tamara), Nuxis, Carbonia-Iglesias, Sardinien (Sardegna), Italien
Copyright: Luigi Chiappino
Contribution: thdun5 2010-04-27
Locality: Bergwerk Monte Tamara (Miniera di Monte Tamara) / Nuxis / Sud Sardegna, Provinz / Sardinien (Sardegna), Region / Italien
Attakolith
Views (File:
1613666015
): 266
Attakolith
⚒ Västanå Iron, Näsum, Bromölla, Skåne, SE. BB: 3cm.
Copyright: Doc Diether; Contribution: Doc Diether
Collection: Doc Diether
Location: Schweden/Skåne, Provinz/Bromölla/Näsum/Västanå Iron Mine (Västanågruvan; Westanå Mine)
Mineral: Attakolite
Image: 1613666015
License: Usage for Mineralienatlas project only
Attakolith

⚒ Västanå Iron, Näsum, Bromölla, Skåne, SE. BB: 3cm.
Collection: Doc Diether
Copyright: Doc Diether
Contribution: Doc Diether 2021-02-18
Locality: Västanå Iron Mine (Västanågruvan; Westanå Mine) / Näsum / Bromölla / Skåne, Provinz / Schweden

Collectors Summary

Color weiß, rosa, blass rot
Solubility +++ Säuren
Crystal System monoklin, C2/m

Chemism

Chemical formula

CaMn2+Al4(HSiO4)(PO4)3(OH)4

Chemical composition

Aluminium, Calcium, Mangan, Silicium, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 648.9777513 u; Number of atoms in the formula: 35

Info

Empirical formula:

CaMnAl4(HSiO4)(PO4)3(OH)4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.78

5

14.29

1.0079470

5.0397350
Oxygen

O

49.31

20

57.14

15.9994300

319.9886000
Aluminium

Al

16.63

4

11.43

26.9815382

107.9261528
Silicon

Si

4.33

1

2.86

28.0855300

28.0855300
Phosphorus

P

14.32

3

8.57

30.9737612

92.9212836
Calcium

Ca

6.18

1

2.86

40.0784000

40.0784000
Manganese

Mn

8.47

1

2.86

54.9380499

54.9380499

Strunz 9th edition incl. updates

8.BH.60

8: Phosphate, Arsenate, Vanadate
B: Phosphate, etc., mit weitere Anionen, ohne H2O
H: Mit mittelgroßen und meist großen [Kationen] (OH, etc.):RO4 = 1:1
60:Attakolith-Gruppe

Lapis Classification

VII/B.28-030

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
B: Wasserfreie Phosphate, mit fremden Anionen F,Cl,O,OH
28: Mittelgroße und große Kationen: Mg-Cu-Zn und Ca-Na-K-Ba-Pb

Classification by Hölzel

8.BL.940

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
L: Phosphates, very large: 2, Vmed: 2
9: With other complex Anions: without O, Sulfate, and Tellurate

Dana 8th edition

43.04.13.01

43: Compound Phosphates, etc.
04: Compound Phosphates, etc. (Anhydrous Compound Anions With Hydroxyl or Halogen)

Optical Properties

Color

weiß, rosa, blass rot

Diaphaneity (Transparency)

durchscheinend

max. Birefringence

0.011
Birefringence chart\! Attakolite title=Birefringence chart Attakolite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.650

RI value β

1.654

RI value γ / ε

1.661

Ri mean

1.655

2V angle

Biaxial (+) 75°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

17.188

Cell parameters b (Å)

11.477

Cell parameters c (Å)

7.322

Cell parameters a/b or c/a

1.498

Cell parameters c/b

0.638

Cell parameters α

90°

Cell parameters β

113.83

Cell parameters γ

90°

Z

4

Volume (ų)

1321.25

X-Ray Powder Diffraction

6.57(20),
4.80(10),
4.33(30),
3.121(30),
3.077(100),
2.913(20),
2.871(20),
2.400(40)
XRD chart Attakolite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

3.09 - 3.23 / Durchschnittlich = 3.16

3.262 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Schweden/Skåne, Provinz/Bromölla/Näsum/Västanå Iron Mine (Västanågruvan; Westanå Mine)

Preface

Author (Name, Year)

Blomstrand, 1868

Other languages

Spanish

Attakolita

French

Attakolite

English

Attakolite

German

Attakolith

Russian

Аттаколит

Alternative Name

Spanish

Atacolita

German

Attacolit

Spanish

Attacolita

English

Attacolite

German

Attakolit

CNMNC symbol

Symbol

Ako

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Vl_P-iLyE0CWV5KOkRDU1w
GUID (Global unique identifier) FACF5F56-F222-4013-9657-928E9110D4D7
Database ID 238