Schmiederite Mineral Data (original) (raw)

General Schmiederite Information

Help on Chemical Formula: Chemical Formula:

Pb2Cu++2(Se++++O3)(Se++++++O4)(OH)4

Help on Composition: Composition:

Molecular Weight = 879.44 gm

Copper 14.45 % Cu 18.09 % CuO

Hydrogen 0.46 % H 4.10 % H2O

Lead 47.12 % Pb 50.76 % PbO

Selenium 17.96 % Se 12.62 % SeO2 / 14.44 % SeO3

Oxygen 20.01 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Pb2Cu2(SeO3)(SeO4)(OH)4

Help on Environment: Environment:

Secondary mineral in the oxidized zone of selenium-bearing hydrothermal base metal deposits.

Help on IMA Status: IMA Status:

Approved IMA 1962

Help on Locality: Locality:

C�ondor mine, Los Llantenes district, Sierra de Cacheuta, La Rioja Province, Argentina. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Oscar Schmieder (1891-1980), German geographer, a Director of the Museum of Mineralogy and Geology, National University, C�ordoba, Argentina.

Help on Name Pronunciation: Name Pronunciation:

Schmiederite + Pronunciation Say SCHMIEDERITE

Help on Synonym: Synonym:

ICSD 68172

PDF 41-1377

Schmeiderite

Schmiederite Image

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Schmiederite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =1.737:1:1.6449

Help on Cell Dimensions: Cell Dimensions:

a = 9.922, b = 5.712, c = 9.396, Z = 2; beta = 101.96° V = 520.95 Den(Calc)= 5.61

Help on Crystal System: Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/m

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Help on Above

| | Effenberger H , Mineralogy and Petrology , 36 (1987) p.3-12, Crystal structure and chemical formula of schmiederite, Pb2Cu2(OH)4(SeO3)(SeO4),, with a comparison to linarite PbCu(OH)2(SO4), Locality: synthetic | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Schmiederite

Help on Color: Color:

Blue.

Help on Density: Density:

5.6

Help on Streak: Streak:

light blue

Optical Properties of Schmiederite

Help on Optical Data: Optical Data:

NCalc= 1.9 - from Gladstone-Dale relationship (KC = 0.1605) where Ncalc=Dcalc*KC+1
NCalc= 1.9 - from Gladstone-Dale relationship (KC = 0.1605) where Ncalc=Dmeas*KC+1

Calculated Properties of Schmiederite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=4.87 gm/cc
note: Specific Gravity of Schmiederite =5.61 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.11
Boson Index = 0.89

Help on Photoelectric: Photoelectric:

PESchmiederite = 854.22 barns/electron
U=PESchmiederite x rElectron Density=4,163.15 barns/cc.

Help on Radioactivity: Radioactivity:

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

Schmiederite Classification

Help on Dana Class: Dana Class:

33.01.01.01 (33)Selenates and Tellurates

(33.01)as A+ (B++)m XO4 Zq

(33.01.01)Schmiederite Series

33.01.01.01 Schmiederite Pb2Cu2(SeO3)(SeO4)(OH)4 P 21/m 2/m

33.01.01.02 Munakataite! Pb2Cu2(SeO3)(SO4)(OH)4 P 21/m 2/m

Help on Strunz Class: Strunz Class:

07.BC.65 07 - SULFATES (SELENATES, TELLURATES)

07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O

07.BC -With medium-sized and large cations

07.BC.65 Linarite PbCu(SO4)(OH)2 P 21/m 2/m

07.BC.65 Schmiederite Pb2Cu2(SeO3)(SeO4)(OH)4 P 21/m 2/m

07.BC.65 Munakataite! Pb2Cu2(SeO3)(SO4)(OH)4 P 21/m 2/m

Other Schmiederite Information

Help on References: References:

NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)

Help on See Also: See Also:

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

Schmiederite

Pb2Cu++2(Se++++O3)(Se++++++O4)(OH)4
Dana No: 33.01.01.01 Strunz No: 07.BC.65
Locality:

Notes: