Schoenfliesite Mineral Data

Advertisment

Our Mission is Simple: RMS will be the go-to portal for all Mineral, Gem and Rock shows in the USA

General Schoenfliesite Information

Chemical Formula:

MgSn++++(OH)6

Composition:

Molecular Weight = 245.06 gm

Magnesium 9.92 % Mg 16.45 % MgO

Tin 48.44 % Sn 61.50 % SnO₂

Hydrogen 2.47 % H 22.05 % H₂O

Oxygen 39.17 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

MgSn(OH)₆

Environment:

Secondary mineral in oxidized tin-bearing materials.

IMA Status:

Approved IMA 1971

Locality:

Brooks Mountain, Seward Peninsula, Alaska. Link to MinDat.org Location Data.

Name Origin:

Named for Arthur Moritz Schoenflies (1853-1928), professor of mathematics, University of Frankfurt.

Name Pronunciation:

Schoenfliesite + Pronunciation

Synonym:

ICSD 25824

PDF 27-Sep

Schoenfliesite Image

Images:

Schoenfliesite

Comments: Yellow-brown schoenfliesite on matrix.
Location: Zlaty Kopec, Jáchymov (St Joachimsthal), Krusné Hory (Erzgebirge), Západoceský Kraj, Bohemia, Czech Republic. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Schoenfliesite Crystallography

Cell Dimensions:

a = 7.759, Z = 4; V = 467.11 Den(Calc)= 3.48

Crystal System:

Isometric - DiploidalH-M Symbol (2/m 3) Space Group: P n3

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

By Intensity(I/I_o): 3.88(1), 4.48(0.5), 2.74(0.25),

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

Basciano L C , Peterson R C , Roeder P L , The Canadian Mineralogist , 36 (1998) p.1203-1210, Description of schoenfliesite, MgSn(OH)6, and roxbyite, Cu1.72S, from a 1375 BC shipwreck,, and rietveld neutron-diffraction refinement of synthetic schoenfliesite, wickmanite,, MnSn(OH)6, and burtite, CaSn(OH)6, Locality: a 1375 BC shipwreck

Physical Properties of Schoenfliesite

Cleavage:

None

Color:

Reddish brown.

Density:

3.483

Diaphaneity:

Transparent

Habit:

Fibrous - Crystals made up of fibers.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Hardness:

4-4.5 - Between Fluorite and Apatite

Luster:

Vitreous (Glassy)

Optical Properties of Schoenfliesite

Gladstone-Dale:

CI meas= 0.135 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.134 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1695,KPDmeas= 0.1694,KC= 0.1958
Ncalc = 1.68

Optical Data:

Isotropic, n=1.59.

Calculated Properties of Schoenfliesite

Electron Density:

Bulk Density (Electron Density)=3.29 gm/cc
note: Specific Gravity of Schoenfliesite =3.48 gm/cc.

Fermion Index:

Fermion Index = 0.09
Boson Index = 0.91

Photoelectric:

PE_{Schoenfliesite}= 141.23 barns/electron
U=PE_{Schoenfliesite} x rElectron Density= 465.29 barns/cc.

Radioactivity:

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

Schoenfliesite Classification

Dana Class:

06.03.06.02 (06)Hydroxides and Oxides Containing Hydroxyl

(06.03)with (OH)3 or (OH)6 groups

(06.03.06)Wickmanite group (Cubic or Trigonal, 2+ cations containing Sn)

06.03.06.01 Wickmanite MnSn(OH)6 P n3m 4/m 3 2/m

06.03.06.02 Schoenfliesite MgSn(OH)6 P n3 2/m 3

06.03.06.03 Natanite FeSn(OH)6 P n3m 4/m 3 2/m

06.03.06.04 Vismirnovite ZnSn(OH)6 P n3m 4/m 3 2/m

06.03.06.05 Burtite CaSn(OH)6 R 3 3

06.03.06.06 Mushistonite (Cu,Zn,Fe)Sn(OH)6 P n3m 4/m 3 2/m

Strunz Class:

04.FC.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.F - Hydroxides (without V or U)

04.FC -Hydroxides with OH, without H2O; corner-sharing octahedra

04.FC.10 Burtite CaSn(OH)6 R 3 3

04.FC.10 Mushistonite (Cu,Zn,Fe)Sn(OH)6 P n3m 4/m 3 2/m

04.FC.10 Natanite FeSn(OH)6 P n3m 4/m 3 2/m

04.FC.10 Vismirnovite ZnSn(OH)6 P n3m 4/m 3 2/m

04.FC.10 Schoenfliesite MgSn(OH)6 P n3 2/m 3

04.FC.10 Wickmanite MnSn(OH)6 P n3m 4/m 3 2/m

Other Schoenfliesite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Schoenfliesite :
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

Search for Schoenfliesite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Schoenfliesite :

A Bijoux Google Search for Schoenfliesite
Dakota Matrix Minerals Google Search for Schoenfliesite
John Betts Fine Minerals Search for Schoenfliesite
McDougall Minerals Google Search for Schoenfliesite
Rock and Mineral Shows Google Search for Schoenfliesite
Weinrich Minerals, Inc. Google Search for Schoenfliesite

Ask about Schoenfliesite 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 Schoenfliesite Specimen Label here :

Schoenfliesite

MgSn++++(OH)6
Dana No: 06.03.06.02 Strunz No: 04.FC.10
Locality:

Notes: