Hedyphane Mineral Data

General Hedyphane Information

Chemical Formula:

Ca2Pb3(AsO4)3Cl

Composition:

Molecular Weight = 1,153.97 gm

Calcium 6.95 % Ca 9.72 % CaO

Arsenic 19.48 % As 29.88 % As₂O₅

Lead 53.87 % Pb 58.03 % PbO

Chlorine 3.07 % Cl 3.07 % Cl

- % Cl -0.69 % -O=Cl₂

Oxygen 16.64 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Pb₃Ca₂(AsO₄)₃Cl

IMA Status:

Valid Species (Pre-IMA) 1830

Locality:

Langban, Varmland, Sweden. Link to MinDat.org Location Data.

Name Origin:

From the Greek hedy - "beautifully bright," in allusion to the high luster.

Name Pronunciation:

Hedyphane + Pronunciation

Synonym:

ICSD 40092

PDF 36-396

Hedyphane Image

Images:

Hedyphane

Comments: Phlogopite with yellowish orange hedyphane.
Location: Langban, Varmland, Sweden. Scale: 4.4 x 2.2 cm.
© John Veevaert

Hedyphane Crystallography

Axial Ratios:

a:c = 1:0.70857

Cell Dimensions:

a = 10.14, c = 7.185, Z = 2; V = 639.78 Den(Calc)= 5.99

Crystal System:

Hexagonal - Dipyramidal H-M Symbol (6/m) Space Group: P 6₃/m

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

By Intensity(I/I_o): 3.03(1), 2.96(0.6), 2.92(0.5),

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Forms: ( 2 0 1) ( 1 1 1) ( 1 1 0) ( 0 0 1)

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Physical Properties of Hedyphane

Cleavage:

{1011} Imperfect

Color:

Blue, Gray white, Yellowish white, White.

Density:

5.8 - 5.82, Average = 5.81

Diaphaneity:

Translucent

Fracture:

Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.

Habit:

Crystalline - Coarse - Occurs as well-formed coarse sized crystals.

Habit:

Massive - Granular - Common texture observed in granite and other igneous rock.

Hardness:

4-5 - Fluorite-Apatite

Luminescence:

Weakly Fluorescent, Short UV=light yellow, Long UV=light yellow.

Luster:

Adamantine - Resinous

Magnetism:

Nonmagnetic

Streak:

white

Optical Properties of Hedyphane

Dichroism (e):

none.

Dichroism (w):

none.

Gladstone-Dale:

CI meas= -0.091 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.058 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1647,KPDmeas= 0.1698,KC= 0.1557
Ncalc = 1.9 - 1.93

Optical Data:

Uniaxial (+/-), a=1.948-2.01, b=1.958-2.03, bire=0.0100-0.0200.

Calculated Properties of Hedyphane

Electron Density:

Bulk Density (Electron Density)=5.17 gm/cc
note: Specific Gravity of Hedyphane =5.99 gm/cc.

Fermion Index:

Fermion Index = 0.11
Boson Index = 0.89

Photoelectric:

PE_Hedyphane= 973.86 barns/electron
U=PE_Hedyphane x rElectron Density=5,034.89 barns/cc.

Radioactivity:

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

Hedyphane Classification

Dana Class:

41.08.02.01 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen

(41.08)where (A)5 (XO4)3 Zq

(41.08.02)Dana Group

41.08.02.01 Hedyphane Ca2Pb3(AsO4)3Cl P 6₃/m 6/m

Strunz Class:

08.BN.05 08 - PHOSPHATES, ARSENATES, VANADATES

08.B - Phosphates, etc. with Additional Anions, without H2O

08.BN -With only large cations, (OH, etc.):RO4 = 0.33:1

08.BN.05 Alforsite Ba5(PO4)3Cl P 6₃/m 6/m

08.BN.05 Apatite* Ca5(PO4)3(OH,F,Cl) P 6₃/m 6/m

08.BN.05 Belovite-(Ce) (Sr,Ce,Na,Ca)5(PO4)3(OH) P 3 3

08.BN.05 Belovite-(La)! (Sr,La,Ce,Ca)5(PO4)3(F,OH) P 3 3

08.BN.05 Fermorite (Ca,Sr)5(AsO4,PO4)3(OH) P 6₃/m 6/m

08.BN.05 Deloneite-(Ce)! NaCa2SrCe(PO4)3F P 3 3

08.BN.05 Johnbaumite Ca5(AsO4)3(OH) P 6₃/m,P 6₃ Hex

08.BN.05 Apatite-(CaOH) Ca5(PO4)3(OH) P 6₃/m 6/m

08.BN.05 Apatite-(CaCl) Ca5(PO4)3Cl P 6₃/m 6/m

08.BN.05 Carbonate-fluorapatite? Ca5(PO4,CO3)3F P 6₃/m 6/m

08.BN.05 Carbonate-hydroxylapatite? Ca5(PO4,CO3)3(OH) P 6₃/m 6/m

08.BN.05 Clinomimetite Pb5(AsO4)3Cl P 2₁/b 2/m

08.BN.05 Apatite-(CaF) Ca5(PO4)3F P 6₃/m 6/m

08.BN.05 Fluorcaphite! (Ca,Sr,Ce,Na)5(PO4)3F P 6₃ 6

08.BN.05 Hedyphane Ca2Pb3(AsO4)3Cl P 6₃/m 6/m

08.BN.05 Mimetite Pb5(AsO4)3Cl P 6₃/m 6/m

08.BN.05 Apatite-(SrOH) (Sr,Ca)5(PO4)3(F,OH) P 6₃/m 6/m

08.BN.05 Morelandite (Ba,Ca,Pb)5(AsO4,PO4)3Cl P 6₃/m,P 6₃ Hex

08.BN.05 Pyromorphite Pb5(PO4)3Cl P 6₃/m 6/m

08.BN.05 Vanadinite Pb5(VO4)3Cl P 6₃/m 6/m

08.BN.05 Apatite-(CaOH)-M! (Ca,Na)5[(P,S)O4]3(OH,Cl) P 2₁/b 2/m

08.BN.05 IMA2008-068! Ca2Pb3(PO4)3F P 6₃/m 6/m

08.BN.05 Svabite Ca5(AsO4)3F P 6₃/m 6/m

08.BN.05 Kuannersuite-(Ce)! Ba6Na2REE2(PO4)6FCl P 3 3

08.BN.05 Turneaureite Ca5[(As,P)O4]3Cl P 6₃/m 6/m

08.BN.05 Phosphohedyphane! Ca2Pb3(PO4)3Cl P 6₃/m 6/m

08.BN.05 IMA2008-009! Sr5(PO4)3F P 6₃/m 6/m 2/m 2/m

08.BN.05 Hydroxylpyromorphite! Pb5(PO4)3OH P 6₃/m 6/m

Other Hedyphane Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

See Also:

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

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Hedyphane

Ca2Pb3(AsO4)3Cl
Dana No: 41.08.02.01 Strunz No: 08.BN.05
Locality:

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