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Artsmithite (Artsmithit)

Additional Functions

Collectors Summary

Color farblos, weiß
Streak color weiß
Cleavages no obvious
Fracture unregelmäßig
Crystal System monoklin, C2/c

Chemism

Chemical formula

Hg4Al[(OH)1-1.5|(PO4)1.7-2]

Chemical composition

Aluminium, Quecksilber, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 1031.90494258 u; Number of atoms in the formula: 17.1

Info

Empirical formula:

Hg4Al[(OH)1.3(PO4)1.9]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.13

1.3

7.60

1.0079470

1.3103311
Oxygen

O

13.80

8.9

52.05

15.9994300

142.3949270
Aluminium

Al

2.61

1

5.85

26.9815382

26.9815382
Phosphorus

P

5.70

1.9

11.11

30.9737612

58.8501463
Mercury

Hg

77.76

4

23.39

200.5920000

802.3680000

Strunz 9th edition incl. updates

8.BO.40

8: Phosphate, Arsenate, Vanadate
B: Phosphate, etc., mit weitere Anionen, ohne H2O
O: Mit ausschließlich [Kationen] (OH, etc.):RO4 ≥ 1:1
40:Kuznetsovit-Gruppe

Lapis Classification

VII/B.31-020

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

Classification by Hölzel

8.BI.280

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
I: Phosphates, very large: 1, Vmed: 2 or 3
2: Phosphates, very large: 1, Vmed: 3 Lacroixite-Brazilianite-Group

Dana 8th edition

41.05.20.01

41: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
05: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen where (A B)2 (XO4) Zq

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos, weiß

Streak color

weiß

RI value α / ω / n

1.80>

RI value β

1.80>

RI value γ / ε

1.80>

Ri mean

1.80>

2V angle

Biaxial

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell parameters a (Å)

17.022

Cell parameters b (Å)

9.074

Cell parameters c (Å)

7.015

Cell parameters a/b or c/a

1.876

Cell parameters c/b

0.773

Cell parameters α

90°

Cell parameters β

101.20

Cell parameters γ

90°

Z

4

Volumne (ų)

1062.885

X-Ray Powder Diffraction

8.33(100),
4.739(50),
4.166(40),
2.979(80),
2.952(50),
2.784(80),
2.660(70),
1.755(50)
XRD chart Artsmithite

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

Crystals 3D

Open larger view

Physical Properties

Density (g/cm³)

6.40 (berechnet)

6.448 ( ρ calc. Mineralienatlas )

Cleavages

no obvious

Fracture

unregelmäßig

Tenacity

flexibel

(Co-)Type locality

(Co-)Type locality

USA/Arkansas/Pike Co./Funderburk Prospect

Preface

Author (Name, Year)

Roberts & Cooper & Hawthorne & Gault & Grice & Nikischer, 2003

References

Canadian Mineralogist 41 (2003), 721

Other languages

German

Artsmithit

Spanish

Artsmithita

French

Artsmithite

English

Artsmithite

Russian

Артсмитит

Simplified Chinese

羟磷铝汞石

Traditional Chinese

羥磷鋁汞石

CNMNC (IMA)-Number

IMA 2002-039

CNMNC symbol

Symbol

Ash