Hureaulite Mineral Data

General Hureaulite Information

Chemical Formula:

Mn5(PO3OH)2(PO4)2•4(H2O)

Composition:

Molecular Weight = 728.65 gm

Manganese 37.70 % Mn 48.68 % MnO

Phosphorus 17.00 % P 38.96 % P₂O₅

Hydrogen 1.38 % H 12.36 % H₂O

Oxygen 43.92 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Mn²⁺₅(PO₃OH)₂(PO₄)₂•4(H₂O)

Environment:

Secondary mineral in weathered triphylite.

IMA Status:

Valid Species (Pre-IMA) 1826

Locality:

Hureaux in St. Silvestre and Vilate near Chanteloube, N of Limoges, Haute Vienne, France. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Hureaulite + Pronunciation

Synonym:

Ca-hureaulite - Ca-bearing hureaulite

ICSD 34744

PDF 34-146

Hureaulite Image

Images:

Hureaulite

Comments: Pink crystals of hureaulite on matrix.
Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Images:

Hureaulite Tavorite

Comments: Lime green tavorite micro crystals with pink, gemmy hureaulite.
Location: Tip Top mine, Custer Co., South Dakota, United States. Scale: Picture size 1.0 cm.
© Tom Loomis / Dakota Matrix

Hureaulite Crystallography

Axial Ratios:

a:b:c =1.9323:1:1.04

Cell Dimensions:

a = 17.618, b = 9.1172, c = 9.482, Z = 4; beta = 96.58° V = 1,513.03 Den(Calc)= 3.20

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c

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

By Intensity(I/I_o): 3.152(1), 8.09(0.7), 2.992(0.65),

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: ( 1 1 1) ( 5 1 2) ( 2 0 1) ( 1 1 0) ( 1 0 0) ( 0 0 1)

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

Moore P B , Araki T , American Mineralogist , 58 (1973) p.302-307, Hureaulite, Mn5(H2O)4[PO3(OH)]2[PO4]2: Its atomic arrangement

Physical Properties of Hureaulite

Cleavage:

{???} Distinct

Color:

Red, White, Grayish white, Yellowish white, Reddish white.

Density:

3.18

Diaphaneity:

Transparent to Translucent

Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Habit:

Compact - Occurs as a compact mass.

Habit:

Fibrous - Crystals made up of fibers.

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Hardness:

5 - Apatite

Luminescence:

Non-fluorescent.

Luster:

Vitreous - Greasy

Streak:

white

Optical Properties of Hureaulite

Gladstone-Dale:

CI meas= 0.018 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.024 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2043,KPDmeas= 0.2056,KC= 0.2092
Ncalc = 1.67

Optical Data:

Biaxial (-), a=1.647, b=1.654, g=1.66, bire=0.0130, 2V(Calc)=84, 2V(Meas)=75. Dispersion r < v very strong.

Pleochroism (x):

coloress or colorless.

Pleochroism (y):

yellow or pale rose.

Calculated Properties of Hureaulite

Electron Density:

Bulk Density (Electron Density)=3.10 gm/cc
note: Specific Gravity of Hureaulite =3.18 gm/cc.

Fermion Index:

Fermion Index = 0.000212867
Boson Index = 0.999787133

Photoelectric:

PE_Hureaulite= 10.41 barns/electron
U=PE_Hureaulite x rElectron Density= 32.27 barns/cc.

Radioactivity:

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

Hureaulite Classification

Dana Class:

39.02.01.01 (39)Hydrated Acid Phosphates, etc

(39.02)H2 (AB)5 (XO4)4 · x(H2O)

(39.02.01)Hureaulite Group

39.02.01.01 Hureaulite Mn5(PO3OH)2(PO4)2•4(H2O) C 2/c 2/m

39.02.01.02 Sainfeldite Ca5(AsO3OH)2(AsO4)2•4(H2O) C 2/c 2/m

39.02.01.03 Villyaellenite Mn5(AsO3OH)2(AsO4)2•4(H2O) C 2/c 2/m

39.02.01.04 IMA2008-047! Cd3Zn2(AsO3OH)2(AsO4)24?H2O C 2/c 2/m

39.02.01.05 IMA2008-066! Mn5(H2O)4(AsO3OH)2(AsO4)2 C 2/c 2/m

Strunz Class:

08.CB.10 08 - PHOSPHATES, ARSENATES, VANADATES

08.C - Phosphates without Additional Anions, with H2O

08.CB -With only medium-sized cations, RO4:H2O = 1:1

08.CB.10 Hureaulite Mn5(PO3OH)2(PO4)2•4(H2O) C 2/c 2/m

08.CB.10 Sainfeldite Ca5(AsO3OH)2(AsO4)2•4(H2O) C 2/c 2/m

08.CB.10 IMA2008-066! Mn5(H2O)4(AsO3OH)2(AsO4)2 C 2/c 2/m

08.CB.10 Villyaellenite Mn5(AsO3OH)2(AsO4)2•4(H2O) C 2/c 2/m

08.CB.10 IMA2008-047! Cd3Zn2(AsO3OH)2(AsO4)24?H2O C 2/c 2/m

Other Hureaulite Information

See Also:

Links to other databases for Hureaulite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
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 Hureaulite using:

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

Visit our Advertisers for Hureaulite :

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

Ask about Hureaulite 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 Hureaulite Specimen Label here :

Hureaulite

Mn5(PO3OH)2(PO4)2•4(H2O)
Dana No: 39.02.01.01 Strunz No: 08.CB.10
Locality:

Notes: