Heteromorphite Mineral Data

General Heteromorphite Information

Chemical Formula:

Pb7Sb8S19

Composition:

Molecular Weight = 3,033.65 gm

Antimony 32.11 % Sb

Lead 47.81 % Pb

Sulfur 20.08 % S

______

100.00 %

Empirical Formula:

Pb₇Sb₈S₁₉

Environment:

Hydrothermal vein deposits.

IMA Status:

Valid Species (Pre-IMA) 1876

Locality:

Wolfsberg in the Hartz Mountains. Link to MinDat.org Location Data.

Name Origin:

From the Greek many - 'hetero' and form - 'morphos.'

Name Pronunciation:

Heteromorphite + Pronunciation

Synonym:

ICSD 100295

PDF 22-649

Heteromorphite Image

Images:

Heteromorphite

Comments: Steel gray metallic acicular crystal mat of heteromorphite on clear calcite crystals.
Location: Wolfsberg, Harz Mountains, Niedersachsen, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Heteromorphite Crystallography

Axial Ratios:

a:b:c =1.141:1:1.7822

Cell Dimensions:

a = 13.628, b = 11.943, c = 21.285, Z = 4; beta = 90.92° V = 3,463.88 Den(Calc)= 5.82

Crystal System:

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

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

By Intensity(I/I_o): 2.8897(1), 3.411(0.9), 3.295(0.88),

Physical Properties of Heteromorphite

Cleavage:

{112} Good

Color:

Black.

Density:

5.73

Diaphaneity:

Opaque

Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Hardness:

2.5-3 - Finger Nail-Calcite

Luster:

Metallic

Streak:

black

Calculated Properties of Heteromorphite

Electron Density:

Bulk Density (Electron Density)=4.93 gm/cc
note: Specific Gravity of Heteromorphite =5.82 gm/cc.

Fermion Index:

Fermion Index = 0.1
Boson Index = 0.9

Photoelectric:

PE_{Heteromorphite}= 978.25 barns/electron
U=PE_{Heteromorphite} x rElectron Density=4,827.03 barns/cc.

Radioactivity:

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

Heteromorphite Classification

Dana Class:

03.06.20.03 (03)Sulfides - Sulfosalts

(03.06)where 2 < z/y < 2.49 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

(03.06.20)Fuloppite Group (Monoclinc: C2/c containing Pb, Sb)

03.06.20.01 Fuloppite Pb3Sb8S15 C 2/c 2/m

03.06.20.02 Plagionite Pb5Sb8S17 C 2/c 2/m

03.06.20.03 Heteromorphite Pb7Sb8S19 C 2/c 2/m

03.06.20.04 Semseyite Pb9Sb8S21 C 2/c 2/m

03.06.20.05 Rayite (Ag,Tl)2Pb8Sb8S21 C 2/c 2/m

Strunz Class:

02.HC.10c 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.H - Sulfosalts of SnS Archetype

02.HC -With only Pb

02.HC.10c Heteromorphite Pb7Sb8S19 C 2/c 2/m

Other Heteromorphite Information

References:

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

See Also:

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

Heteromorphite

Pb7Sb8S19
Dana No: 03.06.20.03 Strunz No: 02.HC.10c
Locality:

Notes:

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