Arsenolite Mineral Data

Arsenolite Mineral Data +

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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.

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),

Forms:

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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

Diaphaniety:

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

Optical Data:

Isotropic, n=1.755.

Calculated Properties of Arsenolite

Electron Density:

r_electron=3.37 gm/cc
note: r_Arsenolite=3.70 gm/cc.

Fermion Index

Fermion Index = 0.00011
Boson Index = 0.99989

Photoelectric:

PE_Arsenolite= 53.81 barns/electron
U=PE_Arsenolite x r_electron= 181.14 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Arsenolite is Not Radioactive

Arsenolite Classification

Dana Class:

4.3.9.1 (4)Simple Oxides

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

(4.3.9)Dana Group

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

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

Strunz Class:

IV/C.02-10 IV - Oxides

IV/C - Oxides with metal : oxygen = 2:3 (M2O3 and related compounds)

IV/C.02 - Arsenolite - Sillenite series

IV/C.02-10 Arsenolite As2O3 F d3m 4/m 3 2/m

IV/C.02-20 Senarmontite Sb2O3 F d3m 4/m 3 2/m

IV/C.02-30 Bismite Bi2O3 P 2₁/c 2/m

IV/C.02-35 Sphaerobismoite Bi2O3 P 4₂212 or P 4₁/n Tetra

IV/C.02-40 Sillenite Bi12SiO20 I 23 2 3

IV/C.02-50 Chrombismite! Bi16CrO27 I 4,I 4-,I 4/m Tetra

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 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
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: 4.3.9.1 Strunz No: IV/C.02-10
Locality:

Notes: