Hydroromarchite Mineral Data

General Hydroromarchite Information

Chemical Formula:

Sn3O2(OH)2

Composition:

Molecular Weight = 422.14 gm

Tin 84.36 % Sn 95.73 % SnO

Hydrogen 0.48 % H 4.27 % H₂O

Oxygen 15.16 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Sn₃O₂(OH)₂

Environment:

An alteration product on tin pannikins dropped in a river between 1801 and 1821.

IMA Status:

Approved IMA 1971

Locality:

Boundary Falls, Winnipeg River, Ontario, Canada. Link to MinDat.org Location Data.

Name Origin:

Named as the hydrous version of romarchite.

Name Pronunciation:

Hydroromarchite + Pronunciation

Synonym:

ICSD 203206

IMA1969-007

PDF 25-11303

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Hydroromarchite Crystallography

Axial Ratios:

a:c = 1:1.14195

Cell Dimensions:

a = 7.89, c = 9.01, Z = 2; V = 560.89 Den(Calc)= 2.50

Crystal System:

Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 4/mnc

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

By Intensity(I/I_o): 3.5(1), 2.773(0.9), 2.961(0.8),

Crystal Structure:

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Abrahams I , Grimes S M , Johnston S R , Knowles J C , Acta Crystallographica, Section C , 52 (1996) p.286-288, Tin(II) oxyhydroxide by X-ray powder diffraction, Locality: synthetic

Physical Properties of Hydroromarchite

Color:

White.

Diaphaneity:

Semitransparent

Habit:

Encrustations - Forms crust-like aggregates on matrix.

Streak:

white

Optical Properties of Hydroromarchite

Optical Data:

NCalc= 1.37 - from Gladstone-Dale relationship (KC = 0.1485) where Ncalc=Dcalc*KC+1

Calculated Properties of Hydroromarchite

Electron Density:

Bulk Density (Electron Density)=2.18 gm/cc
note: Specific Gravity of Hydroromarchite =2.50 gm/cc.

Fermion Index:

Fermion Index = 0.14
Boson Index = 0.86

Photoelectric:

PE_{Hydroromarchite}= 266.46 barns/electron
U=PE_{Hydroromarchite} x rElectron Density= 580.71 barns/cc.

Radioactivity:

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

Hydroromarchite Classification

Dana Class:

06.04.02.01 (06)Hydroxides and Oxides Containing Hydroxyl

(06.04)containing multiple cations

(06.04.02)Dana Group

06.04.02.01 Hydroromarchite Sn3O2(OH)2 P 4/mnc 4/m 2/m 2/m

Strunz Class:

04.FF.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.F - Hydroxides (without V or U)

04.FF -Hydroxides with OH, without H2O; various polyhedra

04.FF.05 Hydroromarchite Sn3O2(OH)2 P 4/mnc 4/m 2/m 2/m

Other Hydroromarchite Information

References:

NAME( AntBidBlaNic3) PHYS. PROP.(AntBidBlaNic3)

See Also:

Links to other databases for Hydroromarchite :
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

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

Hydroromarchite

Sn3O2(OH)2
Dana No: 06.04.02.01 Strunz No: 04.FF.05
Locality:

Notes: