Sudoite Mineral Data

Sudoite Mineral Data +

[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store]
See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM]
Rare Minerals, Meteorites, Equipment and Analytical Services
Excalibur Mineral Company, World leaders in the supply of rare species
Serving the scientific and collector communities since 1974

General Sudoite Information

Chemical Formula:

Mg2(Al,Fe+++)3Si3AlO10(OH)8

Composition:

Molecular Weight = 546.77 gm

Magnesium 8.45 % Mg 14.01 % MgO

Aluminum 19.25 % Al 36.36 % Al₂O₃

Iron 3.06 % Fe 1.31 % FeO / 2.92 % Fe₂O₃

Silicon 15.41 % Si 32.97 % SiO₂

Hydrogen 1.46 % H 13.01 % H₂O

Oxygen 52.38 % O

______ ______

100.00 % 100.59 % = TOTAL OXIDE

Empirical Formula:

Mg_1.9Fe²⁺_0.1Al_2.9Fe³⁺_0.2Si₃AlO₁₀(OH)_7.9

Environment:

Disseminated in hematite ore.

IMA Status:

Approved IMA 1962

Locality:

Hanaoka and Kamakita mines, Aonori Prefecture; Japan. Link to MinDat.org Location Data.

Name Origin:

Named for Toshio Sudo (1911-), University of Tokyo, Japan.

Sudoite Image

Images:

Sudoite Manganite

Comments: Pinkish to nearly white earthy sudoite with dark manganite.
Location: Ilfeld, Nordhausen, Erfurt district, Harz Mts, Thuringia, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Sudoite Crystallography

Axial Ratios:

a:b:c =0.5773:1:1.5749

Cell Dimensions:

a = 5.237, b = 9.07, c = 14.285, Z = 2; beta = 97.02° V = 673.45 Den(Calc)= 2.70

Crystal System:

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

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

By Intensity(I/I_o): 2.501(1), 4.52(0.85), 14.2(0.8),

Physical Properties of Sudoite

Cleavage:

[100] Perfect

Color:

White.

Density:

2.63 - 2.68, Average = 2.65

Diaphaniety:

Translucent

Habit:

Granular - Generally occurs as anhedral to subhedral crystals in matrix.

Hardness:

2.5-3.5 - Finger Nail-Copper Penny

Luster:

Pearly

Streak:

white

Optical Properties of Sudoite

Gladstone-Dale:

CI meas= 0.017 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.033 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2178,KPDmeas= 0.2215,KC= 0.2253

Optical Data:

Biaxial (-), a=1.581-1.583, b=1.584-1.589, g=1.591-1.601, bire=0.0100-0.0180, 2V(Calc)=68-72, 2V(Meas)=64-70.

Calculated Properties of Sudoite

Electron Density:

r_electron=2.66 gm/cc
note: r_Sudoite=2.66 gm/cc.

Fermion Index

Fermion Index = 0.01654
Boson Index = 0.98346

Photoelectric:

PE_Sudoite= 2.26 barns/electron
U=PE_Sudoite x r_electron= 6.02 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Sudoite is Not Radioactive

Sudoite Classification

Dana Class:

71.4.1.3 (71)Phyllosilicate Sheets of Six-Membered Rings

(71.4)interlayered 1:1, 2:1, and octahedra

(71.4.1)Chlorite group (Tri-Dioctahedral)

71.4.1.1 Donbassite Al2[Al2.33][Si3AlO10](OH)8 C 2/m 2/m

71.4.1.2 Cookeite LiAl4(Si3Al)O10(OH)8 P 2₁/a 2/m

71.4.1.3 Sudoite Mg2(Al,Fe)3Si3AlO10(OH)8 C 2/m 2/m

71.4.1.4 Clinochlore (Mg,Fe)5Al(Si3Al)O10(OH)8 C 2/m 2/m

71.4.1.5 Nimite (Ni,Mg,Fe)5Al(Si3Al)O10(OH)8 C 2/m 2/m

71.4.1.6 Baileychlore (Zn,Al,[])3[Fe2Al][Si3AlO10](OH)8 C1,C1 Tri

71.4.1.7 Chamosite (Fe,Mg,Fe)5Al(Si3Al)O10(OH,O)8 C 2/m 2/m

71.4.1.8 Pennantite Mn5Al(Si3Al)O10(OH)8 C 2/m 2/m

71.4.1.9 Orthochamosite! (Fe,Mg,Fe)5Al(Si3Al)O10(OH,O)8 C3m-pseudoHEX Ortho

71.4.1.10 Borocookeite! Li(13x)Al(4-x)(BSi3)O10(OH,F)8[x=0-0.33] pseudo C 2/m 2/m

Strunz Class:

VIII/H.23-10 VIII - Silicates

VIII/H - Phyllosilicates (layered) Mica like with [Si4O10]4- and related groups

VIII/H.23 - Chlorite group

VIII/H.23-10 Sudoite Mg2(Al,Fe)3Si3AlO10(OH)8 C 2/m 2/m

VIII/H.23-20 Clinochlore (Mg,Fe)5Al(Si3Al)O10(OH)8 C 2/m 2/m

VIII/H.23-30 Chamosite (Fe,Mg,Fe)5Al(Si3Al)O10(OH,O)8 C 2/m 2/m

VIII/H.23-40 Orthochamosite (Fe,Mg,Fe)5Al(Si3Al)O10(OH,O)8 C3m-pseudoHEX Ortho

VIII/H.23-50 Baileychlore (Zn,Al,[])3[Fe2Al][Si3AlO10](OH)8 C1,C1 Tri

VIII/H.23-60 Pennantite Mn5Al(Si3Al)O10(OH)8 C 2/m 2/m

VIII/H.23-70 Nimite (Ni,Mg,Fe)5Al(Si3Al)O10(OH)8 C 2/m 2/m

VIII/H.23-80 Gonyerite Mn3[Mn3Fe][(Si,Fe)4O10](OH,O)8 pseudo-HEX Ortho

VIII/H.23-90 Cookeite LiAl4(Si3Al)O10(OH)8 P 2₁/a 2/m

VIII/H.23-95 Borocookeite! Li(13x)Al(4-x)(BSi3)O10(OH,F)8[x=0-0.33] pseudo C 2/m 2/m

VIII/H.23-100 Manandonite Li2Al4[(Si2AlB)O10](OH)8 C1 1

VIII/H.23-110 Franklinfurnaceite Ca2(Fe,Al)MnMn3Zn2Si2O10(OH)8 C 2 2

Other Sudoite Information

References:

NAME( AntBidBlaNic2) PHYS. PROP.(AntBidBlaNic2) OPTIC PROP.(AntBidBlaNic2)

Search for Sudoite using:

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

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

Translate Sudoite Mineral Data :

Ask about Sudoite 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 Sudoite Specimen Label here :

Sudoite

Mg2(Al,Fe+++)3Si3AlO10(OH)8
Dana No: 71.4.1.3 Strunz No: VIII/H.23-10
Locality:

Notes: