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Natroalunite-1c

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Natroalunit

Größe: 45x35 mm, Fundort: Planet Mine, Buckskin Mts, Santa Maria District, La Paz Co., Arizona, USA

John Sobolewski

Contribution: slugslayer 2010-05-16

Locality: Planet Mine / Planet Mine Group / Planet / Santa Maria District / Buckskin Mts / La Paz Co. / Arizona / USA

Collectors Summary

Color

weiß, graulich, gelblich, rötlich, bräunlich

Streak color

weiß

Hardness (Mohs)

3.75

Solubility

+++ Säuren

Crystal System

trigonal, R3m

Chemism

Chemical formula

Na₂Al₃(SO₄)₂(OH)₆

Chemical composition

Aluminium, Natrium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 421.094857 u; Number of atoms in the formula: 27

Info

Empirical formula:

Na₂Al₃(SO₄)₂(OH)₆

Element	Symbol	Weight%	Atoms	Atoms%	Atom weight (u)	Sum weight (u)
Hydrogen	H	1.44	6	22.22	1.0079470	6.0476820
Oxygen	O	53.19	14	51.85	15.9994300	223.9920200
Sodium	Na	10.92	2	7.41	22.9897702	45.9795404
Aluminium	Al	19.22	3	11.11	26.9815382	80.9446146
Sulfur	S	15.23	2	7.41	32.0655000	64.1310000

Search for minerals with similar chemistry

Strunz 9th edition incl. updates

7.BC.10

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
B: Sulfate (Selenate, etc.) mit weitere Anionen, ohne H₂O
C: Mit mittelgroßen und großen [Kationen]
10:Alunit-Gruppe

Lapis Classification

VI/B.11-010

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
B: Wasserfreie Sulfate, mit fremden Anionen
11: Große Kationen vor-wiegend; Alunit-Gruppe

Classification by Hölzel

7.BB.100

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
B: Sulfates (+Anions -Water)
B: Alunite-Group (sulfatian)
1: Alunites with alkalies, Ag, Tl

Dana 8th edition

30.02.04.02

30: Anhydrous Sulfates Containing Hydroxyl or Halogen
02: Anhydrous Sulfates Containing Hydroxyl or Halogen where (A B)2 XO4 Zq
04: Alunite Group (Alunite Subgroup)

IMA status

Neudefinition von der CNMNC anerkannt

Mineral status

anerkanntes Mineral

IMA Classification

Alunite supergroup ⇒ Alunite group with -1c

Optical Properties

Color	weiß, graulich, gelblich, rötlich, bräunlich
Streak color	weiß
Diaphaneity (Transparency)	transparent bis teilweise opak
max. Birefringence	0.022
	$Birefringence chart\! Natroalunite-1c title=Birefringence chart Natroalunite-1c$ 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	1.568
RI value γ / ε	1.590
Ri mean	1.575
2V angle	Uniaxial (+)

Optical Data Luminescence

Color LW-UV (365nm)	gelb
LW-UV Intensity	schwach
Color SW-UV (254nm)	weiß
SW-UV Intensity	schwach
LW-UV Other Colors	blau
SW-UV Other Colors	bläulich weiß, blau

Crystallography

Crystal System	trigonal
Class (H-M)	3m
Space Group number	166
Space Group	R3m
Cell parameters a (Å)	6.977
Cell parameters b (Å)	-
Cell parameters c (Å)	16.74
Cell parameters a/b or c/a	2.399
Cell parameters c/b	-
Z	3
Volumne (Å³)	705.706
X-Ray Powder Diffraction	4.93(100), 3.52(10), 2.992(20), 2.970(40), 2.935(10), 2.228(20), 1.903(20), 1.754(10)
	Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

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Crystal Structure 3D

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Physical Properties

Hardness (Mohs)	3.75
VHN (Hardness Vickers)	160 (ungefähre Angabe abgeleitet aus der Mohshärte)
Density (g/cm³)	2.6 - 2.9 / Durchschnittlich = 2.75
	2.972 ( ρ calc. Mineralienatlas )
Instability	+++ Säuren

(Co-)Type locality

USA /Colorado /Ouray Co./Red Mountain District /Red Mountain /National Belle Mine

Preface

Author (Name, Year)

Hillebrand & Penfield, 1902

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 484

P. Bayliss, U. Kolitsch, E.H. Nickel, A. Pring: Alunite supergroup: recommended nomenclature. Mineral. Mag. 74 (2010) S.919-927.

IMA group assignments

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Alunite	KAl₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BC.10
Huangite	Ca_0.5Al₃[(OH)₆\|(SO₄)₂] trigonal : 3m : R3m	7.BC.10
Jarosite	KFe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BC.10
Walthierite	Ba_0.5Al₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BC.10
Natroalunite-1c	Na₂Al₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BC.10
Osarizawaite	Pb(Al₂Cu²⁺)(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BC.10
Dorallcharite	(Tl,K)Fe³⁺₃[(OH)₆\|(SO₄)₂] trigonal : 3m : R3m	7.BC.10
Natrojarosite	NaFe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BC.10
Ammonioalunite	NH₄Al₃(SO₄)₂(OH)₆ trigonal : 3m, 3m : R3m, R3m	7.BC.10
Beaverite-(Cu)	Pb(Fe³⁺₂Cu)(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BC.10
Plumbojarosite	PbFe₆³⁺(SO₄)₄(OH)₁₂ trigonal : 3m : R3m	7.BC.10
Ammoniojarosite	NH₄Fe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BC.10
Argentojarosite	AgFe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BC.10
Beaverite-(Zn)	Pb(Fe³⁺₂Zn)(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BC.10
Natroalunite-2c	NaAl₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BC.10
Schlossmacherite	(H₃O,Ca)Al₃(AsO₄,SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BC.10
Hydronium jarosite	(H₃O)Fe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BC.10

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Natroalunite-1c	Na₂Al₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	VI/B.11-010
Alunite	KAl₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	VI/B.11-020
Ammonioalunite	NH₄Al₃(SO₄)₂(OH)₆ trigonal : 3m, 3m : R3m, R3m	VI/B.11-030
Huangite	Ca_0.5Al₃[(OH)₆\|(SO₄)₂] trigonal : 3m : R3m	VI/B.11-043
Walthierite	Ba_0.5Al₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	VI/B.11-045
Natrojarosite	NaFe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	VI/B.11-050
Jarosite	KFe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	VI/B.11-060
Dorallcharite	(Tl,K)Fe³⁺₃[(OH)₆\|(SO₄)₂] trigonal : 3m : R3m	VI/B.11-065
Ammoniojarosite	NH₄Fe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	VI/B.11-070
Hydronium jarosite	(H₃O)Fe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	VI/B.11-080
Argentojarosite	AgFe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	VI/B.11-090
Plumbojarosite	PbFe₆³⁺(SO₄)₄(OH)₁₂ trigonal : 3m : R3m	VI/B.11-100
Osarizawaite	Pb(Al₂Cu²⁺)(SO₄)₂(OH)₆ trigonal : 3m : R3m	VI/B.11-110
Beaverite-(Zn)	Pb(Fe³⁺₂Zn)(SO₄)₂(OH)₆ trigonal : 3m : R3m	VI/B.11-115
Beaverite-(Cu)	Pb(Fe³⁺₂Cu)(SO₄)₂(OH)₆ trigonal : 3m : R3m	VI/B.11-120
Krivovichevite	Pb₃[Al(OH)₆](SO₄)(OH) trigonal : 3m : R3c	VI/B.11-130

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Natroalunite-1c	Na₂Al₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BB.100
Alunite	KAl₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BB.110
Natrojarosite	NaFe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BB.140
Jarosite	KFe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BB.145
Argentojarosite	AgFe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	7.BB.160
Dorallcharite	(Tl,K)Fe³⁺₃[(OH)₆\|(SO₄)₂] trigonal : 3m : R3m	7.BB.170

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Lanarkite	Pb₂(SO₄)O monoklin : 2/m : C2/m	30.02.01.01
Dolerophanite	Cu₂(SO₄)O monoklin : 2/m : C2/m	30.02.02.01
Linarite	PbCu(SO₄)(OH)₂ monoklin : 2/m : P2₁/m	30.02.03.01
Alunite	KAl₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	30.02.04.01
Natroalunite-1c	Na₂Al₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	30.02.04.02
Schlossmacherite	(H₃O,Ca)Al₃(AsO₄,SO₄)₂(OH)₆ trigonal : 3m : R3m	30.02.04.03
Osarizawaite	Pb(Al₂Cu²⁺)(SO₄)₂(OH)₆ trigonal : 3m : R3m	30.02.04.04
Natroalunite-2c	NaAl₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	30.02.04.05
Ammonioalunite	NH₄Al₃(SO₄)₂(OH)₆ trigonal : 3m, 3m : R3m, R3m	30.02.04.06
Walthierite	Ba_0.5Al₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	30.02.04.07
Huangite	Ca_0.5Al₃[(OH)₆\|(SO₄)₂] trigonal : 3m : R3m	30.02.04.08
Jarosite	KFe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	30.02.05.01
Natrojarosite	NaFe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	30.02.05.02
Hydronium jarosite	(H₃O)Fe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	30.02.05.03
Ammoniojarosite	NH₄Fe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	30.02.05.04
Argentojarosite	AgFe³⁺₃(SO₄)₂(OH)₆ trigonal : 3m : R3m	30.02.05.05
Plumbojarosite	PbFe₆³⁺(SO₄)₄(OH)₁₂ trigonal : 3m : R3m	30.02.05.06
Beaverite-(Cu)	Pb(Fe³⁺₂Cu)(SO₄)₂(OH)₆ trigonal : 3m : R3m	30.02.05.07
Dorallcharite	(Tl,K)Fe³⁺₃[(OH)₆\|(SO₄)₂] trigonal : 3m : R3m	30.02.05.08
Itoite	Pb₃GeO₂(SO₄)₂(OH)₂ orthorhombisch : mmm : Pnma	30.02.06.01
Piypite	K₄Cu₄O₂(SO₄)₄·(Na,Cu)Cl tetragonal : 4 : I4	30.02.07.01
Kamchatkite	KCu₃²⁺OCl(SO₄)₂ orthorhombisch : mm2 : Pna2₁	30.02.08.01
Cannonite	Bi₂O(SO₄)(OH)₂ monoklin : 2/m : P2₁/c	30.02.09.01

Other languages

German	Natroalunit-1c
Spanish	Natroalunita
French	Natroalunite
English	Natroalunite-1c
Russian	Натроалунит
Simplified Chinese	钠明矾石

Alternative Name

Spanish	Alkanasul
German	Almeriit
Spanish	Almeriita
English	Almeriite
	Alumian
German	Alumianit
Spanish	Alumianita
	Alumianite
German	Natroalunit
	Soda-Alunite

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

German pages	DeWikiPedia - search for: Natroalunit-1c Google-Bilder-Suche - search for: Natroalunit-1c Mineralogisch-Petrographisches-Institut Hamburg - search for: Natroalunit-1c
English pages	Mindat - search for: Natroalunite-1c Webmineral - search for:Natroalunite-1c Handbook-of-Mineralogy - search for: Natroalunite-1c RRUFF - Raman, XRD and other mineral data - search for: Natroalunite-1c RRUFF - References and PDF downloads - search for: Natroalunite-1c American-Mineralogist-Crystal-Structure-Database - search for: Natroalunite-1c Athena - search for: Natroalunite-1c
Russian pages	Webmineral.ru - search for: Натроалунит

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