Arsenolite Mineral Data

General Arsenolite Information

Chemical Formula:

As2O3

Composition:

Molecular Weight = 197.84 gm

Arsenic 75.74 % As 100.00 % As₂O₃

Oxygen 24.26 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

As₂O₃

Environment:

Secondary mineral from As bearing rocks.

IMA Status:

Valid Species (Pre-IMA) 1854

Locality:

Amargosa mine, San Bernardino Co., California, USA Link to MinDat.org Location Data.

Name Origin:

For ARSENic in the composition.

Name Pronunciation:

Arsenolite + Pronunciation

Synonym:

ICSD 2114

PDF 36-1490

Arsenolite Image

Images:

Arsenolite

Comments: Brownish yellow octahedrons of arsenolite on matrix.
Location: White Caps mine, Manhattan, Nye County, Nevada, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Arsenolite Crystallography

Cell Dimensions:

a = 11.0457, Z = 16; V = 1,347.66 Den(Calc)= 3.90

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.195(1), 6.394(0.63), 2.541(0.38),

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Forms: ( 1 1 1)

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Crystal Structure:

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

View Additional jPOWD Structure files for Arsenolite
[1]

Physical Properties of Arsenolite

Cleavage:

{111} Perfect, {111} Perfect, {111} Perfect

Color:

Blue, White, Light yellow, Red.

Density:

3.7

Diaphaneity:

Transparent to translucent

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Habit:

Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite).

Habit:

Encrustations - Forms crust-like aggregates on matrix.

Hardness:

1.5 - Between Talc and Gypsum

Luminescence:

Non-fluorescent.

Luster:

Vitreous - Dull

Magnetism:

Nonmagnetic

Streak:

white

Optical Properties of Arsenolite

Gladstone-Dale:

CI meas= 0.132 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.176 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1936,KPDmeas= 0.2041,KC= 0.235
Ncalc = 1.87 - 1.92

Optical Data:

Isotropic, n=1.755.

Calculated Properties of Arsenolite

Electron Density:

Bulk Density (Electron Density)=3.37 gm/cc
note: Specific Gravity of Arsenolite =3.70 gm/cc.

Fermion Index:

Fermion Index = 0.0001164526
Boson Index = 0.9998835474

Photoelectric:

PE_Arsenolite= 53.81 barns/electron
U=PE_Arsenolite x rElectron Density= 181.14 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Arsenolite is Not Radioactive

Arsenolite Classification

Dana Class:

04.03.09.01 (04)Simple Oxides

(04.03)with a cation charge of 3+ (A+++2 O3)

(04.03.09)Dana Group

04.03.09.01 Arsenolite As2O3 F d3m 4/m 3 2/m

04.03.09.02 Senarmontite Sb2O3 F d3m 4/m 3 2/m

Strunz Class:

04.CB.50 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.C - Metal:Oxygen = 2:3, 3:5, and Similar

04.CB -With medium-sized cations

04.CB.50 Arsenolite As2O3 F d3m 4/m 3 2/m

04.CB.50 Senarmontite Sb2O3 F d3m 4/m 3 2/m

Other Arsenolite Information

References:

NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)

See Also:

Links to other databases for Arsenolite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Print or Cut-and-Paste your Arsenolite Specimen Label here :

Arsenolite

As2O3
Dana No: 04.03.09.01 Strunz No: 04.CB.50
Locality:

Notes: