Jeanbandyite Mineral Data

Jeanbandyite Mineral Data +

General Jeanbandyite Information

Chemical Formula:

(Fe+++,Mn++)Sn++++(OH)6

Composition:

Molecular Weight = 247.09 gm

Manganese 4.45 % Mn 5.74 % MnO

Iron 15.82 % Fe 22.62 % Fe₂O₃

Tin 38.43 % Sn 48.79 % SnO₂

Hydrogen 2.45 % H 21.87 % H₂O

Oxygen 38.85 % O

______ ______

100.00 % 99.03 % = TOTAL OXIDE

Empirical Formula:

Fe³⁺_0.7Mn²⁺_0.2Sn_0.8(OH)₆

Environment:

Oxide zone of polymetallic hydrothermal deposits epitaxially overgrown on wickmanite or natanite.

IMA Status:

Approved IMA 1982

Locality:

Llallagua, Bolivia. Link to MinDat.org Location Data.

Name Origin:

Named for Jean A. Bandy, Wickenburg, Arizona, USA, who, with her husband Mark Bandy, translated Agricola's "De Natura Fossilium" from original Latin.

Synonym:

ICSD 27661

PDF 35-663

Jeanbandyite Image

Images:

Jeanbandyite

Comments: Yellowish brown translucent microcrystal of jeanbandyite on mineral encrusted fluorite.
Location: Mount Pleasant Tin Mine, New Brunswick, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Jeanbandyite Crystallography

Axial Ratios:

a:c = 1:1

Cell Dimensions:

a = 7.648, c = 7.648, Z = 4; V = 447.35 Den(Calc)= 3.67

Crystal System:

Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: P 4₁/n

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

By Intensity(I/I_o): 3.83(1), 2.71(0.7), 1.71(0.6),

Physical Properties of Jeanbandyite

Cleavage:

[001] Good, [100] Fair

Color:

Brown orange, Red brown, Pale yellow.

Density:

4.41

Diaphaniety:

Transparent to Translucent

Habit:

Crystalline - Coarse - Occurs as well-formed coarse sized crystals.

Habit:

Pseudo Octohedral - Crystals show an octohedral outline.

Habit:

Striated - Parallel lines on crystal surface or cleavage face.

Hardness:

3.5 - Copper Penny

Luster:

Vitreous - Adamantine

Streak:

light yellow

Optical Properties of Jeanbandyite

Gladstone-Dale:

CI meas= 0.165 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.004 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2275,KPDmeas= 0.1893,KC= 0.2267

Optical Data:

Uniaxial (-), e=1.833, w=1.837, bire=0.0040.

Calculated Properties of Jeanbandyite

Electron Density:

r_electron=3.48 gm/cc
note: r_Jeanbandyite=3.67 gm/cc.

Fermion Index

Fermion Index = 0.06742
Boson Index = 0.93258

Photoelectric:

PE_Jeanbandyite= 117.67 barns/electron
U=PE_Jeanbandyite x r_electron= 409.68 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Jeanbandyite is Not Radioactive

Jeanbandyite Classification

Dana Class:

6.3.7.3 (6)Hydroxides and Oxides Containing Hydroxyl

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

(6.3.7)Wickmanite group (Tetragonal: P42/n)

6.3.7.1 Stottite FeGe(OH)6 P 4₁/n 4/m

6.3.7.2 Tetrawickmanite MnSn(OH)6 P 4₁/n 4/m

6.3.7.3 Jeanbandyite (Fe,Mn)Sn(OH)6 P 4₁/n 4/m

6.3.7.4 Mopungite NaSb(OH)6 P 4₁/n 4/m

Strunz Class:

IV/F.17-30 IV - Oxides

IV/F - Hydroxides and oxidic hydrates, water-bearing oxides with layered structure

IV/F.17 - Stottite group, Mopungite - Stottite series

IV/F.17-10 Mopungite NaSb(OH)6 P 4₁/n 4/m

IV/F.17-20 Tetrawickmanite MnSn(OH)6 P 4₁/n 4/m

IV/F.17-30 Jeanbandyite (Fe,Mn)Sn(OH)6 P 4₁/n 4/m

IV/F.17-40 Stottite FeGe(OH)6 P 4₁/n 4/m

IV/F.17-50 Eyselite! FeGe3O7(OH) P*** Ortho

Other Jeanbandyite Information

References:

NAME( AntBidBlaNic3) PHYS. PROP.(AntBidBlaNic3) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Jeanbandyite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

Search for Jeanbandyite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Jeanbandyite :
AA Mineral Specimens
A-Rocks Auction
Adams Minerals
B and L Minerals
Dakota Matrix
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Minernet.it
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Jeanbandyite Mineral Data :

Ask about Jeanbandyite 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 Jeanbandyite Specimen Label here :

Jeanbandyite

(Fe+++,Mn++)Sn++++(OH)6
Dana No: 6.3.7.3 Strunz No: IV/F.17-30
Locality:

Notes: