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Huizingite-(Al)

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Huizingit-(Al)
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Huizingit-(Al)

farblose Kristalle von Huizingit-(Al) neben unbestimmten gelbbraunen Aggregaten, Solfatara di Pozzuoli, Phlegräische Felder, Naples Provinz, Kampanien, Italien; BB < 1 mm

Copyright: Joy Desor
Contribution: openpit 2020-04-26
Locality: Solfatara di Pozzuoli / Pozzuoli / Phlegräische Felder (Campi Flegrei) / Neapel, Provinz / Kampanien (Campania), Region / Italien

Collectors Summary

Color grünlichgelb
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 2.5
Fracture unregelmäßig
Solubility leicht löslich in H2O
Crystal System triklin, P1
Morphology drusige Aggregate, abgeflacht bis tafelig, abgeflachte auf {100}, bis zu etwa 0,25 mm in der maximalen Dimension

Chemism

Chem­ical formula

[(NH4)9(SO4)2][(Al,Fe3+)3(OH)2(H2O)4(SO4)6]

Empir­ical formula (anal­y­sis)

[(NH4)8.76Na0.22K0.02]Σ9.00(Al1.65Fe3+1.34)Σ2.99(OH)1.98(H2O)4.02(SO4)8.00

Chem­ical com­po­si­tion

Aluminium, Eisen, Sauerstoff, Schwefel, Stickstoff, Wasserstoff

Unit weight: 1157.811120694 u; Number of atoms in the formula: 103.05

Info

Empirical formula:

[(NH4)8.76Na0.22K0.02](Al1.65Fe1.34)(OH)1.98(H2O)4.02(SO4)8.00

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

3.92

45.06

43.73

1.0079470

45.4180918

Nitrogen

N

10.60

8.76

8.50

14.0067200

122.6988672

Oxygen

O

52.51

38

36.88

15.9994300

607.9783400

Sodium

Na

0.44

0.22

0.21

22.9897702

5.0577494

Aluminium

Al

3.85

1.65

1.60

26.9815382

44.5195380

Sulfur

S

22.16

8

7.76

32.0655000

256.5240000

Potassium

K

0.07

0.02

0.02

39.0983100

0.7819662

Iron

Fe

6.46

1.34

1.30

55.8452000

74.8325680

IMA sta­tus

anerkannt - CNMNC Newsletter 25, Juni 2015

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

grünlichgelb

Streak color

weiß

Lus­tre

Glasglanz

max. Birefrin­gence

0.020

Birefringence chart\! Huizingite-(Al) title=Birefringence chart Huizingite-(Al)

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

α = 1.543(1)

RI value β

β = 1.545(1)

RI value γ / ε

γ = 1.563(1)

Ri mean

1.550

2V angle

Biaxial (+)

Crystallography

Crystal Sys­tem

triklin

Class (H-M)

1

Space Group number

2

Space Group

P1

Cell param­e­ters a (Å)

9.7093(3)

Cell param­e­ters b (Å)

10.4341(3)

Cell param­e­ters c (Å)

10.7027(8)

Cell param­e­ters a/b or c/a

0.931

Cell param­e­ters c/b

1.026

Cell param­e­ters α

77.231(5)°

Cell param­e­ters β

74.860(5)°

Cell param­e­ters γ

66.104(5)°

Z

1

Volumne (ų)

948.727

Kristall struc­ture

Neuer Strukturtyp

X-Ray Pow­der Diffrac­tion

8.82(60), 5.60(32), 5.037(69), 4.122(41), 3.534(38), 3.427(100), 3.204(68), 3.043(94)

XRD chart Huizingite-(Al)

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

Morphol­ogy

drusige Aggregate, abgeflacht bis tafelig, abgeflachte auf {100}, bis zu etwa 0,25 mm in der maximalen Dimension

Physical Properties

Hard­ness (Mohs)

2.5

Density (g/cm³)

2.026 (brechnet)

2.026 ( ρ calc. Mineralienatlas )

Frac­ture

unregelmäßig

Tenac­ity

spröde

Insta­bil­ity

leicht löslich in H2O

(Co-)Type locality

(Co-)Type locality

USA/Ohio/Erie Co./Milan Village/Huron River (Carlsonit Fundstelle)

Type mate­r­ial

Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA

Col­lec­tion number of type mate­r­ial

65576

Preface

Name from

Terry E. Huizing (geboren 1938), Kurator für Mineralogie für das Cincinnati Museum Center und Marie E. Huizing (geb. 1939), Herausgeber von Rocks & Minerals seit 1978

Author (Name, Year)

Anthony R. Kampf, R. Peter Richards, Barbara P. Nash, John Rakovan und James B. Murowchick (2015)

References

Kampf, A.R., Richards, R.P., Nash, B.P., Rakovan, J. and Murowchick, J.B. (2015) Huizingite-(Al), IMA 2015-014. CNMNC Newsletter No. 25, June 2015, page 534; Mineralogical Magazine, 79, 529-535

Kampf, A.R., Richards, R.P., Nash, B.P., Murowchick, J.B., Rakovan, J. - Carlsonite, (NH4)5Fe3+3O(SO4)6·7H2O and huizingite-(Al), (NH4)9Al3(SO4)8(OH)2·4H2O, two new minerals from a natural fire in an oil-bearing shale near Milan, Ohio. American Mineralogist, 101 (2016), (submitted).

Other languages

German

Huizingit-(Al)

English

Huizingite-(Al)

Russian

Хайзингит-(Al)

CNMNC (IMA)-Number

IMA 2015-014

CNMNC symbol

Symbol

Hui-Al

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

German pages

DeWikiPedia - search for: Huizingit-(Al)
Google-Bilder-Suche - search for: Huizingit-(Al)
Mineralogisch-Petrographisches-Institut Hamburg - search for: Huizingit-(Al)

English pages

Mindat - search for: Huizingite-(Al)
Webmineral - search for:Huizingite-(Al)
Handbook-of-Mineralogy - search for: Huizingite-(Al)
RRUFF - Raman, XRD and other mineral data - search for: Huizingite-(Al)
RRUFF - References and PDF downloads - search for: Huizingite-(Al)
American-Mineralogist-Crystal-Structure-Database - search for: Huizingite-(Al)
Athena - search for: Huizingite-(Al)
Strahlen.org - search for: Huizingite-(Al)
Mineralienatls.de (Forum) - search for: Huizingit-(Al)

Russian pages

Webmineral.ru - search for: Хайзингит-(Al)

Mineral Dealer

German pages

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

Locations with GPS information