Haidingerite Mineral Data

General Haidingerite Information

Chemical Formula:

Ca(AsO3OH)•(H2O)

Composition:

Molecular Weight = 181.01 gm

Calcium 22.14 % Ca 30.98 % CaO

Arsenic 41.39 % As 63.49 % As₂O₅

Hydrogen 1.11 % H 9.95 % H₂O

Oxygen 35.36 % O

______ ______

100.00 % 104.42 % = TOTAL OXIDE

Empirical Formula:

CaAsO₃•(H₂O)

Environment:

Oxidation product of arsenical ores.

IMA Status:

Valid Species (Pre-IMA) 1827

Locality:

Jackymov, Zapadocesky Kraj, Bohemia, Czech Republic. Link to MinDat.org Location Data.

Name Origin:

Name for William Karl von Haidinger (1795-1871), Austrain mineralogist and geologist.

Name Pronunciation:

Haidingerite + Pronunciation

Synonym:

ICSD 2714

PDF 18-288

Haidingerite Image

Images:

Click Here for Larger Haidingerite Image

Haidingerite Pharmacolite

Comments: Translucent colorless crystalline spherical aggregate of haidingerite with white pharmacolite.
Location: Jachymov, Zapadocesky, Czech Republic. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Haidingerite Crystallography

Axial Ratios:

a:b:c =0.4297:1:0.4916

Cell Dimensions:

a = 6.94, b = 16.15, c = 7.94, Z = 8; V = 889.92 Den(Calc)= 2.70

Crystal System:

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

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

By Intensity(I/I_o): 5.22(1), 2.955(0.8), 8.06(0.6),

Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: ( 0 1 1) ( 0 1 0) ( 5 4 2) ( 4 2 1) ( 1 1 0) ( 1 0 0) ( 1 0 2)

Warning: this large pop-up is very compute intensive and may not work well with some computers.

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
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

Ferraris G , Jones D W , Yerkess J , Acta Crystallographica, Section B , 28 (1972) p.209-214, A neutron and X-ray refinement of the crystal structure of CaHAsO4*H2O (haidingerite), Sample: neutron refinement, Locality: synthetic

View Additional jPOWD Structure files for Haidingerite
[1]

Physical Properties of Haidingerite

Cleavage:

{010} Perfect

Color:

Colorless, White.

Density:

2.95

Diaphaneity:

Transparent to Translucent

Fracture:

Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).

Habit:

Encrustations - Forms crust-like aggregates on matrix.

Habit:

Fibrous - Crystals made up of fibers.

Hardness:

2-2.5 - Gypsum-Finger Nail

Luster:

Vitreous - Adamantine

Streak:

white

Optical Properties of Haidingerite

Gladstone-Dale:

CI meas= -0.025 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.12 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2259,KPDmeas= 0.2068,KC= 0.2017
Ncalc = 1.54 - 1.6

Optical Data:

Biaxial (+), a=1.59, b=1.602, g=1.638, bire=0.0480, 2V(Calc)=62, 2V(Meas)=58. Dispersion r > v.

Pleochroism (x):

none.

Pleochroism (y):

none.

Pleochroism (z):

none.

Calculated Properties of Haidingerite

Electron Density:

Bulk Density (Electron Density)=2.84 gm/cc
note: Specific Gravity of Haidingerite =2.95 gm/cc.

Fermion Index:

Fermion Index = 0.0004702783
Boson Index = 0.9995297217

Photoelectric:

PE_Haidingerite= 30.71 barns/electron
U=PE_Haidingerite x rElectron Density= 87.08 barns/cc.

Radioactivity:

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

Haidingerite Classification

Dana Class:

39.01.05.01 (39)Hydrated Acid Phosphates, etc

(39.01)A+ [HXO4] · x(H2O)

(39.01.05)Dana Group

39.01.05.01 Haidingerite Ca(AsO3OH)•(H2O) Pcnb 2/m 2/m 2/m

Strunz Class:

08.CJ.20 08 - PHOSPHATES, ARSENATES, VANADATES

08.C - Phosphates without Additional Anions, with H2O

08.CJ -With only large cations

08.CJ.20 Haidingerite Ca(AsO3OH)•(H2O) Pcnb 2/m 2/m 2/m

Other Haidingerite Information

References:

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

See Also:

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

Search for Haidingerite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Haidingerite :

A Bijoux Google Search for Haidingerite
Adam's Minerals Google Search for Haidingerite
Cape Minerals Google Search for Haidingerite
Dakota Matrix Minerals Google Search for Haidingerite
Excalibur Mineral Corp. Google Search for Haidingerite
Exceptional Minerals Google Search for Haidingerite
John Betts Fine Minerals Search for Haidingerite
McDougall Minerals Google Search for Haidingerite
Mineral News Website Link
Rock and Mineral Shows Google Search for Haidingerite
Weinrich Minerals, Inc. Google Search for Haidingerite

Ask about Haidingerite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Haidingerite

Ca(AsO3OH)•(H2O)
Dana No: 39.01.05.01 Strunz No: 08.CJ.20
Locality:

Notes: