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Arsenolite

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Formula:
As2O3
System:
Isometric
Colour:
White, bluish; reddish ...
Lustre:
Vitreous, Silky
Hardness:
Name:
For arsenic in the composition.
Dimorph of:
This page provides mineralogical data about Arsenolite.

Classification of Arsenolite

Approved, 'Grandfathered' (first described prior to 1959)
4.CB.50

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
B : With medium-sized cations
Dana 7th ed.:
4.3.9.1
4.3.9.1

4 : SIMPLE OXIDES
3 : A2X3
7.13.1

7 : Oxides and Hydroxides
13 : Oxides of As, Sb and Bi
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Type Occurrence of Arsenolite

General Appearance of Type Material:
oxidation product of arsenic-bearing sulphides in hydrothermal veins

Physical Properties of Arsenolite

Vitreous, Silky
Diaphaneity (Transparency):
Transparent
Colour:
White, bluish; reddish to yellowish if impure with realgar or orpiment; colourless in transmitted light
Streak:
White to pale yellowish white
Hardness (Mohs):
Cleavage:
Distinct/Good
on {111}
Fracture:
Conchoidal
Density:
3.86 - 3.88 g/cm3 (Measured)    3.88 g/cm3 (Calculated)

Crystallography of Arsenolite

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fd3m
Cell Parameters:
a = 11.074Å
Unit Cell Volume:
V 1,358.04 ų (Calculated from Unit Cell)
Z:
16
Morphology:
Commonly as tiny octahedra, sometimes modified by the dodecahedron; also in aggregates or crusts, botryoidal, stalactitic, earthy to pulverulent.
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.
X-Ray Powder Diffraction Data:
d-spacingIntensity
3.195 (100)
6.39 (63)
2.541 (38)
2.7687 (28)
1.957 (27)
1.551 (22)
1.670 (21)
Comments:
Recorded on synthetic material.

Optical Data of Arsenolite

Type:
Isotropic
RI values:
n = 1.755
Max Birefringence:
δ = 0.000 - Isotropic minerals have no birefringence
Surface Relief:
High
Type:
Isotropic
Comments:
May be anomalously anisotropic

Chemical Properties of Arsenolite

Formula:
As2O3
All elements listed in formula:
Analytical Data:
Analyses of natural material are not reported

Relationship of Arsenolite to other Species

4.CB.05BrizziiteNaSb5+O3
4.CB.05CorundumAl2O3
4.CB.05Ecandrewsite(Zn,Fe2+,Mn2+)TiO3
4.CB.05EskolaiteCr2O3
4.CB.05GeikieliteMgTiO3
4.CB.05HematiteFe2O3
4.CB.05IlmeniteFe2+TiO3
4.CB.05KarelianiteV23+O3
4.CB.05MelanostibiteMn2+(Sb5+,Fe3+)O3
4.CB.05PyrophaniteMn2+TiO3
4.CB.05Akimotoite(Mg,Fe2+)SiO3
4.CB.05AuroantimonateAuSbO3
4.CB.05Romanite(◻,Pb,Ca)UFe22+(Ti,Fe3+)6Ti12O38
4.CB.05UM1998-11-O-AuHSbAu2+Sb3+O2(OH)
4.CB.05TistariteTi23+O3
4.CB.10AvicenniteTl2O3
4.CB.10BixbyiteMn23+O3
4.CB.15Armalcolite(Mg,Fe2+)Ti2O5
4.CB.15PseudobrookiteFe2TiO5
4.CB.20Zincohögbomite-2N2S[(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2
4.CB.20Zincohögbomite-2N6S[(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2
4.CB.20Magnesiohögbomite-6N6S[(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6
4.CB.20Magnesiohögbomite-2N3S[(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2
4.CB.20Magnesiohögbomite-2N2S[(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2
4.CB.20Ferrohögbomite-6N12S[(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6
4.CB.25PseudorutileFe2Ti3O9
4.CB.25KleberiteFeTi6O11(OH)5
4.CB.30BerdesinskiiteV23+TiO5
4.CB.30OxyvaniteV23+V4+O5
4.CB.35Olkhonskite(Cr,V)2Ti3O9
4.CB.35SchreyeriteV23+Ti3O9
4.CB.40KamiokiteFe2Mo3O8
4.CB.40Nolanite(V3+,Fe3+,Fe2+,Ti)10O14(OH)2
4.CB.40RinmaniteZn2Sb2Mg2Fe4O14(OH)2
4.CB.40IseiteMn2Mo3O8
4.CB.40MajindeiteMg2Mo3O8
4.CB.45ClaudetiteAs2O3
4.CB.45StibioclaudetiteAsSbO3
4.CB.50SenarmontiteSb2O3
4.CB.55ValentiniteSb2O3
4.CB.60BismiteBi2O3
4.CB.65SphaerobismoiteBi2O3
4.CB.70SilléniteBi12SiO20
4.CB.75KyzylkumiteTi2V3+O5(OH)
4.CB.80TietaiyangiteFe43+Fe2+TiO9
7.13.2ClaudetiteAs2O3
7.13.3SenarmontiteSb2O3
7.13.4ValentiniteSb2O3
7.13.5CervantiteSb3+Sb5+O4
7.13.6Stibiconite
7.13.7BahianiteAl5Sb3O14(OH)2
7.13.8Cualstibite-1M(Cu,Al)3(OH)6[Sb5+(OH)6]
7.13.9BismutostibiconiteBi(Sb5+,Fe3+)2O7
7.13.107.13.11StibivaniteSb2VO5
7.13.12BismiteBi2O3
7.13.13SilléniteBi12SiO20

Other Names for Arsenolite

Other Information

Health Risks:
A highly toxic substance with an astringent, sweetish taste. Contains arsenic in a highly soluble form - always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest.

References for Arsenolite

Reference List:
Dana, J.D. (1854) II. Oxyds of elements of the arsenic group. I. Oxyds of arsenic, antimony, etc. Arsenolite. in A System of Mineralogy, Comprising the Most Recent Discoveries, Fourth Edition, Volume II, George P. Putnam & Co., New York and London, 139-140.

Bozorth, R.M. (1923) The crystal structures of the cubic forms of arsenious and antimonous oxides. Journal of the American Chemical Society: 45: 1621-1627.

Lihl, F. (1931) Präzisionsbestimmung der Gitterkonstante von As2O3. Zeitschrift für Kristallographie: 81: 142-147.

Palache, C., Berman, H., Frondel, C. (1944) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc. (New York), 7th edition, revised and enlarged, 543-544.

Beattie, I.R., Livingston, K.M.S., Ozin, G.A., Reynolds, D.J. (1970) Single-crystal Raman spectra of arsenolite (As4O6) and senarmonite (Sb4O6). The gas-phase Raman spectra pf P4O6, P4O10, and As4O6. Journal of the Chemical Society A: Inorganic, Physical, Theoretical: 1970: 449-451

Flynn, E.J., Solin, S.A., Papatheodorou, G.N. (1976) Vibrational excitations of As2O3. II. Crystalline phases. Physical Review B: 13: 1752-1758.

Mrose, M.E., Larson, R.R., Estep, P.A. (1976) Forbesite — a mixture of cobaltoan annabergite and arsenolite. The Canadian Mineralogist: 14: 414-421.

Pertlik, F. (1978) Structure refinement of cubic As2O3 (arsenolite) with single crystal data. Czechoslovak Journal of Physics: B28(2): 170-176.
Chemical Abstracts: 88: 573 [abstract]

Treacy, D.J., Taylor, P.C. (1981) Nuclear quadrupole resonance in two crystalline forms of As2O3, arsenolite and claudetite. International Solid State Communications: 40(2): 135-138.

Anthony, J.W. et al. (1997) Handbook of Mineralogy, Vol. 3, 24.

Grzechnik, A. (1999) Compressibility and vibrational modes in solid As4O6. Journal of Solid State Chemistry: 144: 416-422.

Ballirano, P., Maras, A. (2002) Refinement of the crystal structure of arsenolite, As2O3. Zeitschrift für Kristallographie: 217: 177-178.

Gilliam, S.J., Merrow, C.N., Kirkby, S.J., Jensen, J.O., Zeroka, D., Banerjee, A. (2003) Raman spectroscopy of arsenolite: crystalline cubic As4O6. Journal of Solid State Chemistry: 173: 54-58.

Soignard, E., Amin, S.A., Mei, Q., Benmore, C.J., Yarger, J.L. (2008) High-pressure behavior of As2O3: Amorphous-amorphous and crystalline-amorphous transitions. Physical Review B: 77: 144113-8.

Ballirano, P. (2012) Thermal behavior of realgar As4S4, and of arsenolite As2O3 and non-stoichiometric As8S8+x crystals produced from As4S4 melt recrystallization. American Mineralogist: 97: 1320-1329.

Internet Links for Arsenolite

Localities for Arsenolite

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