Plumosite Mineral Data

General Plumosite Information

Chemical Formula:

Pb2Sb2S5

Composition:

Molecular Weight = 818.23 gm

Antimony 29.76 % Sb

Lead 50.65 % Pb

Sulfur 19.59 % S

______

100.00 %

Empirical Formula:

Pb₂Sb₂S₅

Environment:

The mineral name is considered to be generic for feathery lead sulphosalts (eg. boulangerite).

IMA Status:

Not Approved IMA

Locality:

Link to MinDat.org Location Data.

Name Origin:

Named for the feathery habit (plumose).

Plumosite Image

Images:

Plumosite

Comments: Gray metallic needles of plumosite in brown siderite matrix.
Location: Pribram, Bohemia, Czech Republic. Scale: Not Given.
© Diederik Visser

Plumosite Crystallography

Crystal System:

Monoclinic

Physical Properties of Plumosite

Cleavage:

{???} Good

Color:

Lead gray.

Diaphaneity:

Opaque

Hardness:

2-3 - Gypsum-Calcite

Luster:

Metallic

Streak:

dark gray

Optical Properties of Plumosite

Optical Data:

Calculated Properties of Plumosite

Fermion Index:

Fermion Index = 0.11
Boson Index = 0.89

Photoelectric:

PE_Plumosite=1,023.95 barns/electron
U=PE_Plumosite x rElectron Density= . barns/cc.

Radioactivity:

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

Plumosite Classification

Dana Class:

02.00.00.00 (02)Sulfide Minerals

(02.00)Without Dana Classification Numbers

(02.00.00)Sulfosalt - Sb

02.00.00.00 Argentite* Ag2S I m3m 4/m 3 2/m

02.00.00.00 Bayankhanite? Cu6HgS4 Unk Hex

02.00.00.00 Bismutoplagionite* 5PbS.4Bi2S3 Unk Ortho

02.00.00.00 Bravoite? (Fe,Ni,Co)S2 P a3 2/m 3

02.00.00.00 Colimaite K3VS4 P nma 2/m 2/m 2/m

02.00.00.00 Dayingite* CuCoPtS4 F m3m 4/m 3 2/m

02.00.00.00 Dilithium* Li2Te P 222 2 2 2

02.00.00.00 Dzhezkazganite* (Pb,Cu,Rh)S2(?) P a3? 2/m 3

02.00.00.00 Ferdisilicite* FeSi2 P 4/mmm 4/m 2/m 2/m

02.00.00.00 Fersilicite* FeSi P 2₁3 2 3

02.00.00.00 Horobetsuite* (Bi,Sb)2S3 Pbnm 2/m 2/m 2/m

02.00.00.00 Horomanite Fe6Ni3S8 P 4/mmm 4mm

02.00.00.00 Imgreite? NiTe P 6₃/mmc 6/m 2/m 2/m

02.00.00.00 Iridisite* (Ir,Cu,Rh,Ni,Pt)S2 Unk Cubic

02.00.00.00 Isochalcopyrite? Cu8Fe9S16 Unk Cubic

02.00.00.00 Jaipurite* CoS P 6₃/mmc 6/m 2/m 2/m

02.00.00.00 Kitaibelite? Ag10PbBi30S51 Mono ? Mono

02.00.00.00 Kurilite? (Ag,Au)2(Te,Se,S) P m3n,P 4₃n Cubic

02.00.00.00 Plumosite* Pb2Sb2S5 Mono

02.00.00.00 Protojoseite* Bi4TeS2(?) R 3m 3 2/m

02.00.00.00 Samaniite Cu2Fe5Ni2S8 P 4₁/mmm 4mm

02.00.00.00 Stibioenargite* Cu3(Sb,As)S4 Unk Ortho

02.00.00.00 Sztrokayite* Bi3TeS2 Trig ? Trig

02.00.00.00 Volfsonite* Cu10CuFeFe2Sn3S16 P 4₂m-,P 42₁2 Tetra

Strunz Class:

02.HC.15 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.15 Boulangerite Pb5Sb4S11 Unk Ortho

02.HC.15 Falkmanite Pb5Sb4S11 Mono

02.HC.15 Plumosite* Pb2Sb2S5 Mono

Other Plumosite Information

See Also:

Links to other databases for Plumosite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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

Plumosite

Pb2Sb2S5
Dana No: 02.00.00.00 Strunz No: 02.HC.15
Locality:

Notes:

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