Hinsdalite Mineral Data

Hinsdalite Mineral Data +

General Hinsdalite Information

Chemical Formula:

(Pb,Sr)Al3(PO4)(SO4)(OH)6

Composition:

Molecular Weight = 551.33 gm

Strontium 3.97 % Sr 4.70 % SrO

Aluminum 14.68 % Al 27.74 % Al₂O₃

Phosphorus 5.62 % P 12.87 % P₂O₅

Hydrogen 1.10 % H 9.80 % H₂O

Lead 28.19 % Pb 30.36 % PbO

Sulfur 5.82 % S 14.52 % SO₃

Oxygen 40.63 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Pb_0.75Sr_0.25Al₃(PO₄)(SO₄)(OH)₆

Environment:

Secondary mineral in the oxidized zone of polymetallic sulfide deposits.

IMA Status:

Valid Species (Pre-IMA) 1911

Locality:

Golden Fleece mine, Hinsdale County., Colorado, USA. Link to MinDat.org Location Data.

Name Origin:

Named after its locality.

Hinsdalite Image

Images:

Hinsdalite

Comments: Transparent crystal of hinsdalite on quartz.
Location: Butte, Silver Bow County, Montana, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Images:

Hinsdalite Corkite

Comments: Small brown rounded translucent crystals of corkite on darker brown botryoidal hinsdalite.
Location: Grube Schone Aussicht, near Dernbach, Montabaur, Rheinland-Pflaz, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hinsdalite Crystallography

Axial Ratios:

a:c = 1:2.40343

Cell Dimensions:

a = 6.99, c = 16.8, Z = 3; V = 710.88 Den(Calc)= 3.86

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): 2.78(1), 2.96(0.8), 5.59(0.65),

Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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Help on Above

Kolitsch U , Tiekink E R T , Slade P G , Taylor M R , Pring A , European Journal of Mineralogy , 11 (1999) p.513-520, Hinsdalite and plumbogummite, their atomic arrangements, and disordered lead sites

Physical Properties of Hinsdalite

Cleavage:

[001] Perfect

Color:

Colorless, Green.

Density:

4.65

Diaphaniety:

Transparent to translucent

Fracture:

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

Habit:

Crystalline - Poor - Occurs primarily as crudely formed crystals.

Habit:

Pseudo Tetragonal - Crystals show a tetragonal shape.

Hardness:

4.5 - Between Fluorite and Apatite

Luminescence:

None.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Hinsdalite

Dichroism (e):

none.

Dichroism (w):

none.

Gladstone-Dale:

CI meas= 0.216 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.056 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1768,KPDmeas= 0.1468,KC= 0.1872

Optical Data:

Uniaxial (+), w=1.67-1.671, e=1.689-1.7, bire=0.0190-0.0290.

Calculated Properties of Hinsdalite

Electron Density:

r_electron=3.63 gm/cc
note: r_Hinsdalite=3.86 gm/cc.

Fermion Index

Fermion Index = 0.0657
Boson Index = 0.9343

Photoelectric:

PE_Hinsdalite= 466.14 barns/electron
U=PE_Hinsdalite x r_electron=1,690.53 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Hinsdalite is Not Radioactive

Hinsdalite Classification

Dana Class:

43.4.1.5 (43)Compound Phosphates, etc.

(43.4)(Anhydrous Compound Anions With Hydroxyl or Halogen)

(43.4.1)Dana Group

43.4.1.1 Beudantite PbFe3(AsO4)(SO4)(OH)6 R 3m 3 2/m

43.4.1.2 Corkite PbFe3(PO4)(SO4)(OH)6 R 3m 3m

43.4.1.3 Hidalgoite PbAl3(AsO4)(SO4)(OH)6 R 3m 3 2/m

43.4.1.4 Orpheite PbAl3(PO4,SO4)2(OH)6(?) R 3m 3 2/m

43.4.1.5 Hinsdalite (Pb,Sr)Al3(PO4)(SO4)(OH)6 R 3m 3 2/m

43.4.1.6 Svanbergite SrAl3(PO4)(SO4)(OH)6 R 3m 3 2/m

43.4.1.7 Kemmlitzite (Sr,Ce)Al3(AsO4)(SO4)(OH)6 R 3m 3 2/m

43.4.1.8 Woodhouseite CaAl3(PO4)(SO4)(OH)6 R 3m 3 2/m

43.4.1.9 Weilerite BaAl3H[(As,P)O4]2(OH)6 R 3m 3 2/m

43.4.1.10 Gallobeudantite! PbGa3[(AsO4),(SO4)]2(OH)6 R 3m 3m

Strunz Class:

VII/B.35-60 VII - Phosphates, Arsenates and Vanadates

VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O, OH. cations of medium and big size: Mg, Cu, Zn, and Ca, Na, K, Ba, Pb

VII/B.35 - Beudantite group

VII/B.35-10 Schlossmacherite (H3O,Ca)Al3(AsO4,SO4)2(OH)6 R 3m 3 2/m

VII/B.35-20 Woodhouseite CaAl3(PO4)(SO4)(OH)6 R 3m 3 2/m

VII/B.35-30 Svanbergite SrAl3(PO4)(SO4)(OH)6 R 3m 3 2/m

VII/B.35-40 Kemmlitzite (Sr,Ce)Al3(AsO4)(SO4)(OH)6 R 3m 3 2/m

VII/B.35-60 Hinsdalite (Pb,Sr)Al3(PO4)(SO4)(OH)6 R 3m 3 2/m

VII/B.35-65 Orpheite PbAl3(PO4,SO4)2(OH)6(?) R 3m 3 2/m

VII/B.35-70 Hidalgoite PbAl3(AsO4)(SO4)(OH)6 R 3m 3 2/m

VII/B.35-75 Gallobeudantite! PbGa3[(AsO4),(SO4)]2(OH)6 R 3m 3m

VII/B.35-80 Corkite PbFe3(PO4)(SO4)(OH)6 R 3m 3m

VII/B.35-90 Beudantite PbFe3(AsO4)(SO4)(OH)6 R 3m 3 2/m

Other Hinsdalite Information

References:

NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic4)

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Hinsdalite

(Pb,Sr)Al3(PO4)(SO4)(OH)6
Dana No: 43.4.1.5 Strunz No: VII/B.35-60
Locality:

Notes: