Arsenolamprite Mineral Data

General Arsenolamprite Information

Chemical Formula:

Composition:

Molecular Weight = 74.92 gm

Arsenic 100.00 % As

______

100.00 %

Empirical Formula:

Environment:

Trimorphous with arsenic and pararsenolimprite.

IMA Status:

Valid Species (Pre-IMA) 1886

Locality:

Marienberg, Saxony, Germany. Link to MinDat.org Location Data.

Name Origin:

Named for the composition and the Greek for brilliance, in allusion to its luster.

Name Pronunciation:

Arsenolamprite + Pronunciation

Synonym:

ICSD 70100

PDF 30-100

Arsenolamprite Image

Images:

Arsenolamprite

Comments: Needle like gray crystals of arsenolamprite in calcite matrix.
Location: Mackenheim,, Odenwald, Germany. Scale: Crystal size 1 mm.
© Tom Loomis / Dakota Matrix

Images:

Arsenolamprite

Comments: REM (Raster Electron Microscope) image of well cristallized arsenolamprite fragments.
Location: Mine dump near shaft 371, Hartenstein, Germany. Scale: See Image.
© Thomas Schlothauer

Images:

Arsenolamprite

Comments: Vein of arsenolamprite in matrix.
Location: Mine dump near shaft 371, Hartenstein, Germany. Scale: See Image.
© Thomas Schlothauer

Arsenolamprite Crystallography

Axial Ratios:

a:b:c =0.8157:1:2.4629

Cell Dimensions:

a = 3.63, b = 4.45, c = 10.96, Z = 8; V = 177.04 Den(Calc)= 5.62

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Bmab

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

By Intensity(I/I_o): 1.12(1), 2.72(1), 5.44(1),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Wyckoff R W G , Crystal Structures , 1 (1963) p.239-444, Second edition. Interscience Publishers, New York, New York

Physical Properties of Arsenolamprite

Cleavage:

{???} Perfect

Color:

Dark gray.

Density:

5.3 - 5.58, Average = 5.44

Diaphaneity:

Opaque

Fracture:

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

Habit:

Acicular - Occurs as needle-like crystals.

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Hardness:

2 - Gypsum

Luster:

Metallic

Streak:

black

Optical Properties of Arsenolamprite

RL Anisotrophism:

Weak.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Arsenolamprite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
420 nm	42.80	56.80
440 nm	43.60	55.40
460 nm	44.30	54.00
480 nm	44.70	52.80
500 nm	44.80	51.60
520 nm	44.60	50.50
540 nm	44.00	49.60
560 nm	43.10	48.70
580 nm	42.70	48.00
600 nm	42.60	47.40
620 nm	42.70	46.80
640 nm	43.00	46.30
660 nm	43.40	45.80
680 nm	43.80	45.50
700 nm	44.40	45.00

**Calculated Relative Intensity Colors of Arsenolamprite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%
R₁
R₂

Calculated Properties of Arsenolamprite

Electron Density:

Bulk Density (Electron Density)=4.95 gm/cc
note: Specific Gravity of Arsenolamprite =5.62 gm/cc.

Fermion Index:

Fermion Index = 0
Boson Index = 1

Photoelectric:

PE_{Arsenolamprite}= 73.21 barns/electron
U=PE_{Arsenolamprite} x rElectron Density= 362.46 barns/cc.

Radioactivity:

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

Arsenolamprite Classification

Dana Class:

01.03.02.01 (01)Native Elements

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

(01.03.02)Dana Group

01.03.02.01 Arsenolamprite As Bmab 2/m 2/m 2/m

01.03.02.02 Pararsenolamprite! As Pmn2 or P 2₁nm Ortho

Strunz Class:

01.CA.10 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)

01.C - Metalloids and Nonmetals

01.CA -Arsenic group elements

01.CA.10 Arsenolamprite As Bmab 2/m 2/m 2/m

01.CA.10 Pararsenolamprite! As Pmn2 or P 2₁nm Ortho

Other Arsenolamprite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Arsenolamprite :
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 Arsenolamprite Specimen Label here :

Arsenolamprite

As
Dana No: 01.03.02.01 Strunz No: 01.CA.10
Locality:

Notes: