Antimony Mineral Data

Antimony Mineral Data +

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General Antimony Information

Chemical Formula:

Composition:

Molecular Weight = 121.75 gm

Antimony 100.00 % Sb

______

100.00 %

Empirical Formula:

Environment:

Hydrothermal veins.

IMA Status:

Valid Species (Pre-IMA) Prehistoric

Locality:

Sala Silver Mine, Sala, Västmanland, Sweden. Link to MinDat.org Location Data.

Name Origin:

From the Arabic, al-uthmud, to Medieval Latin, antimonium; originally applied to stibnite, the sulfide of antimony.

Synonym:

ICSD 64695

PDF 35-732

Antimony Image

Images:

Antimony

Comments: Massive pure native antimony.
Location: Arechuybo, Chihuahua, Mexico. Scale: Size Not Given.
© John Veevaert

Images:

Antimony Valentinite

Comments: Beige valentinite crystals with red kermesite in a matrix of gray, massive antimony.
Location: South-Ham Antimony mine, Lake Nicolet, Quebec, Canada. Scale: Picture Size 3 cm.
© Dave Barthelmy

Antimony Crystallography

Axial Ratios:

a:c = 1:2.61688

Cell Dimensions:

a = 4.299, c = 11.25, Z = 6; V = 180.06 Den(Calc)= 6.74

Crystal System:

Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m

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

By Intensity(I/I_o): 3.109(1), 2.248(0.7), 1.368(0.67),

Forms:

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Forms: [ 0 1 2] [ 0 1 8] [ 0 0 1]

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Crystal Structure:

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Wyckoff R W G , Crystal Structures , 1 (1963) p.7-83, Second edition. Interscience Publishers, New York, New York

View Additional jPOWD Structure files for Antimony
[1] [2] [3]

Physical Properties of Antimony

Cleavage:

[0001] Perfect

Color:

Light gray, Tin white.

Density:

6.61 - 6.72, Average = 6.66

Diaphaniety:

Opaque

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Massive - Lamellar - Distinctly foliated fine-grained forms.

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Habit:

Reticulate - Fibers or columns cross in "Net-like" crystalline growths (e.g. cerrusite).

Hardness:

3-3.5 - Calcite-Copper Penny

Luminescence:

None.

Luster:

Metallic

Magnetism:

Nonmagnetic

Streak:

lead gray

Optical Properties of Antimony

RL Anisotrophism:

Weak in air, lively in oil.

RL Pleochroism:

Very feeble.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Antimony in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	71.20	73.40
420 nm	71.40	73.20
440 nm	71.50	73.00
460 nm	71.40	72.90
480 nm	71.20	72.60
500 nm	70.90	72.40
520 nm	70.50	72.00
540 nm	70.00	71.60
560 nm	69.40	71.20
580 nm	69.00	70.80
600 nm	68.60	70.60
620 nm	68.40	70.30
640 nm	68.30	70.20
660 nm	68.20	70.10
680 nm	68.30	70.20
700 nm	68.40	70.30

**Calculated Relative Intensity Colors of Antimony in Air**
Relative Intensity	0%	20%	40%	60%	80%	100%	120%	130%
R₁
R₂

Calculated Properties of Antimony

Electron Density:

r_electron=5.65 gm/cc
note: r_Antimony=6.74 gm/cc.

Fermion Index

Fermion Index = 0
Boson Index = 1

Photoelectric:

PE_Antimony= 350.91 barns/electron
U=PE_Antimony x r_electron=1,981.45 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Antimony is Not Radioactive

Antimony Classification

Dana Class:

1.3.1.2 (1)Native Elements

(1.3)with semi-metallic and non-metallic elements

(1.3.1)Arsenic group

1.3.1.1 Arsenic As R 3m 3 2/m

1.3.1.2 Antimony Sb R 3m 3 2/m

1.3.1.3 Stibarsen SbAs R 3m 3 2/m

1.3.1.4 Bismuth Bi R 3m 3 2/m

1.3.1.5 Stistaite SnSb R 3m 3 2/m

Strunz Class:

I/B.01-30 I - Elements

I/B - Semimetals and nonmetals

I/B.01 - Arsenic-Bismuth series

I/B.01-10 Arsenic As R 3m 3 2/m

I/B.01-20 Stibarsen SbAs R 3m 3 2/m

I/B.01-30 Antimony Sb R 3m 3 2/m

I/B.01-40 Bismuth Bi R 3m 3 2/m

I/B.01-50 Arsenolamprite As Bmab 2/m 2/m 2/m

I/B.01-55 Pararsenolamprite! As Pmn2 or P 2₁nm Ortho

I/B.01-60 Paradocrasite Sb2(Sb,As)2 C 2 2

Other Antimony Information

References:

NAME( Sinkankas66) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

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Antimony

Sb
Dana No: 1.3.1.2 Strunz No: I/B.01-30
Locality:

Notes: