Heteromorphite Mineral Data

Heteromorphite Mineral Data +

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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.'

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 - PrismaticH-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),

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

Edenharter A , Nowacki W , Neues Jahrbuch fur Mineralogie, Monatshefte , 1975 (1975) p.193-195, Die kristallstruktur von heteromorphit Pb7Sb8S19

Physical Properties of Heteromorphite

Cleavage:

[112] Good

Color:

Black.

Density:

5.73

Diaphaniety:

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:

r_electron=4.93 gm/cc
note: r_{Heteromorphite}=5.82 gm/cc.

Fermion Index

Fermion Index = 0.10716
Boson Index = 0.89284

Photoelectric:

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

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Heteromorphite is Not Radioactive

Heteromorphite Classification

Dana Class:

3.6.20.3 (3)Sulfides - Sulfosalts

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

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

3.6.20.1 Fuloppite Pb3Sb8S15 C 2/c 2/m

3.6.20.2 Plagionite Pb5Sb8S17 C 2/c 2/m

3.6.20.3 Heteromorphite Pb7Sb8S19 C 2/c 2/m

3.6.20.4 Semseyite Pb9Sb8S21 C 2/c 2/m

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

Strunz Class:

II/E.21-30 II - Sulfides and sulphosalts

II/E - Sulfosalts (S : As,Sb,Bi = x), Sulfosalts with predominant Iron and Copper x = 2.0

II/E.21 - Rayite - Fülöppite series

II/E.21-10 Rayite (Ag,Tl)2Pb8Sb8S21 C 2/c 2/m

II/E.21-20 Semseyite Pb9Sb8S21 C 2/c 2/m

II/E.21-30 Heteromorphite Pb7Sb8S19 C 2/c 2/m

II/E.21-40 Plagionite Pb5Sb8S17 C 2/c 2/m

II/E.21-50 Fuloppite Pb3Sb8S15 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 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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

Heteromorphite

Pb7Sb8S19
Dana No: 3.6.20.3 Strunz No: II/E.21-30
Locality:

Notes: