Hydrocerussite Mineral Data

General Hydrocerussite Information

Chemical Formula:

Pb3(CO3)2(OH)2

Composition:

Molecular Weight = 775.63 gm

Hydrogen 0.26 % H 2.32 % H₂O

Lead 80.14 % Pb 86.33 % PbO

Carbon 3.10 % C 11.35 % CO₂

Oxygen 16.50 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Pb₃(CO₃)₂(OH)₂

Environment:

Secondary mineral usually developed on native lead.

IMA Status:

Valid Species (Pre-IMA) 1877

Locality:

Lanbanshyttan, Vermland, Sweden. Link to MinDat.org Location Data.

Name Origin:

Named for its composition.

Name Pronunciation:

Hydrocerussite + Pronunciation

Synonym:

ICSD 30357

PDF 13-131

Hydrocerussite Image

Images:

Click Here for Larger Hydrocerussite Image

Hydrocerussite Cerussite

Comments: Platy crystals of milky white hydrocerussite covering cerussite.
Location: Tsumeb mine, Tsumeb, Namibia. Scale: 6 x 5 cm.
© Fabre Minerals

Hydrocerussite Crystallography

Axial Ratios:

a:c = 1:4.53053

Cell Dimensions:

a = 5.24, c = 23.74, Z = 3; V = 564.51 Den(Calc)= 6.84

Crystal System:

Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: P 3₁m

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

By Intensity(I/I_o): 2.623(1), 3.29(0.9), 3.61(0.9),

Forms:

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Forms: ( 1 1 2) ( 1 1 4) ( 0 0 1)

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Crystal Structure:

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Martinetto P , Anne M , Dooryhee E , Walter P , Tsoucaris G , Acta Crystallographica, Section C , 58 (2002) p.i82-i84, Synthetic hydrocerussite, 2PbCO3*Pb(OH)2 by X-ray powder diffraction, Locality: synthetic

Physical Properties of Hydrocerussite

Cleavage:

{0001} Perfect

Color:

Colorless, Gray, White.

Density:

6.8

Diaphaneity:

Transparent to Translucent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Platy - Sheet forms (e.g. micas).

Hardness:

3.5 - Copper Penny

Luster:

Adamantine

Streak:

white

Optical Properties of Hydrocerussite

Gladstone-Dale:

CI meas= -0.018 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.012 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1484,KPDmeas= 0.1493,KC= 0.1467
Ncalc = 2

Optical Data:

Uniaxial (-), e=1.94, w=2.09, bire=0.1500.

Calculated Properties of Hydrocerussite

Electron Density:

Bulk Density (Electron Density)=5.71 gm/cc
note: Specific Gravity of Hydrocerussite =6.84 gm/cc.

Fermion Index:

Fermion Index = 0.17
Boson Index = 0.83

Photoelectric:

PE_{Hydrocerussite}=1,472.61 barns/electron
U=PE_{Hydrocerussite} x rElectron Density=8,415.16 barns/cc.

Radioactivity:

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

Hydrocerussite Classification

Dana Class:

16a.02.02.01 (16a)Carbonates - Hydroxyl or Halogen

(16a.02)where (A B)3 (XO3)2 Zq

(16a.02.02)Dana Group

16a.02.02.01 Hydrocerussite Pb3(CO3)2(OH)2 P 3₁m 3m

Strunz Class:

05.BE.10 05 - CARBONATES (NITRATES)

05.B - Carbonates with additional anions, without H2O

05.BE -With Pb, Bi

05.BE.10 Hydrocerussite Pb3(CO3)2(OH)2 P 3₁m 3m

Other Hydrocerussite Information

References:

NAME( Ford32) PHYS. PROP.(Dana8) OPTIC PROP.(Ford32)

See Also:

Links to other databases for Hydrocerussite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
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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Ask about Hydrocerussite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Hydrocerussite

Pb3(CO3)2(OH)2
Dana No: 16a.02.02.01 Strunz No: 05.BE.10
Locality:

Notes: