Shuiskite Mineral Data

General Shuiskite Information

Chemical Formula:

Ca2(Mg,Al)(Cr,Al)2(SiO4)(Si2O7)(OH)2•(H2O)

Composition:

Molecular Weight = 506.85 gm

Calcium 15.81 % Ca 22.13 % CaO

Magnesium 2.88 % Mg 4.77 % MgO

Aluminum 6.92 % Al 13.08 % Al₂O₃

Chromium 13.34 % Cr 17.44 % CrO

Iron 1.10 % Fe 1.42 % FeO

Silicon 14.96 % Si 32.01 % SiO₂

Hydrogen 0.80 % H 7.11 % H₂O

Oxygen 44.19 % O

______ ______

100.00 % 97.95 % = TOTAL OXIDE

Empirical Formula:

Ca₂Mg_0.6Al_0.3Fe²⁺_0.1Cr_1.3Al_0.7Si_2.7Al_0.3O₁₁(OH)₂·(H₂O)

Environment:

On the walls of fractures in chromitite.

IMA Status:

Valid Species (Pre-IMA) 1926

Locality:

From the Sarany deposit, Bisersk, in the Gorozavod district, Northern Ural Mountains, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for V. P. Shuisk, petrologist of the Ural Scientific Center, Yekaterinburg (Sverdlovsk), Russia.

Name Pronunciation:

Shuiskite + Pronunciation

Shuiskite Image

Images:

Shuiskite

Comments: Acicular shuiskite microcrystal sprays with epidote and prehnite.
Location: Quincy Mine, Hancock, Houghton County, Michigan, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Shuiskite Crystallography

Axial Ratios:

a:b:c =1.5226:1:3.3219

Cell Dimensions:

a = 8.897, b = 5.843, c = 19.41, Z = 4; beta = 98° V = 999.21 Den(Calc)= 3.37

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: A2/m

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

By Intensity(I/I_o): 1.487(1), 1.593(1), 2.9(0.9),

Physical Properties of Shuiskite

Cleavage:

{001} Perfect

Color:

Dark brown.

Density:

3.24

Diaphaneity:

Semitransparent

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Fibrous - Crystals made up of fibers.

Habit:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)

Hardness:

6 - Orthoclase

Luster:

Vitreous (Glassy)

Streak:

light greenish brown

Optical Properties of Shuiskite

Gladstone-Dale:

CI meas= -0.102 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.06 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2243,KPDmeas= 0.2333,KC= 0.2117
Ncalc = 1.69 - 1.71

Optical Data:

Biaxial (-), a=1.725-1.733, b=1.762-1.772, g=1.769-1.775, bire=0.0420-0.0440, 2V(Calc)=30-46, 2V(Meas)=40-50.

Pleochroism (x):

blue violet.

Pleochroism (y):

yellowish green.

Pleochroism (z):

dark violet.

Calculated Properties of Shuiskite

Electron Density:

Bulk Density (Electron Density)=3.35 gm/cc
note: Specific Gravity of Shuiskite =3.37 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Shuiskite= 6.05 barns/electron
U=PE_Shuiskite x rElectron Density= 20.25 barns/cc.

Radioactivity:

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

Shuiskite Classification

Dana Class:

58.02.02.09 (58)Sorosilicate Insular, Mixed, Single, and Larger Tetrahedral Groups

(58.02)with cations in [6] and higher coordination; single and double groups (n=1,2)

(58.02.02)Pumpellyite group

58.02.02.01 Julgoldite-(Fe++) Ca2Fe(Fe,Al)2(SiO4)(Si2O7)(OH)2•(H2O) C 2/m 2/m

58.02.02.02 Julgoldite-(Fe+++) Ca2Fe(Fe,Al)2(SiO4)(Si2O7)(O,OH)2•(H2O) A2/m 2/m

58.02.02.03 Okhotskite-(Mg)* Ca3(Mg,Mn)(Mn,Al,Fe)(SiO4)(Si2O7)(OH)2•(H2O) Mono

58.02.02.04 Okhotskite-(Mn++) Ca2(Mn,Mg)(Mn,Al,Fe)Si3O10(OH)4 A2/m 2/m

58.02.02.05 Pumpellyite-(Fe++) Ca2Fe(Al,Fe)2(SiO4)(Si2O7)(OH)2•(H2O) A2/m 2/m

58.02.02.06 Pumpellyite-(Fe+++) Ca2FeAl2(SiO4)(Si2O7)(OH,O)2•(H2O) A2/m 2/m

58.02.02.07 Pumpellyite-(Mg) Ca2MgAl2(SiO4)(Si2O7)(OH)2•(H2O) A2/m 2/m

58.02.02.08 Pumpellyite-(Mn++) Ca2(Mn,Mg)(Al,Mn,Fe)2(SiO4)(Si2O7(OH)2•(H2O) A2/m 2/m

58.02.02.09 Shuiskite Ca2(Mg,Al)(Cr,Al)2(SiO4)(Si2O7)(OH)2•(H2O) A2/m 2/m

58.02.02.10 Poppiite! Ca2(V,Fe,Mg)(V,Al)2(Si,Al)3(O,OH)14 C 2/m 2/m

58.02.02.11 Pumpellyite-(Al)! Ca2(Al,Fe,Mg)Al2(SiO4)(Si2O7)(OH,O)2•H2O A2/m 2/m

Strunz Class:

09.BG.20 09 - SILICATES (Germanates)

09.B - Sorosilicates

09.BG -Sorosilicates with mixed SiO4 and Si2O7 groups;

09.BG.20 Julgoldite-(Fe++) Ca2Fe(Fe,Al)2(SiO4)(Si2O7)(OH)2•(H2O) C 2/m 2/m

09.BG.20 Julgoldite-(Fe+++) Ca2Fe(Fe,Al)2(SiO4)(Si2O7)(O,OH)2•(H2O) A2/m 2/m

09.BG.20 Pumpellyite-(Fe++) Ca2Fe(Al,Fe)2(SiO4)(Si2O7)(OH)2•(H2O) A2/m 2/m

09.BG.20 Okhotskite-(Mg)* Ca3(Mg,Mn)(Mn,Al,Fe)(SiO4)(Si2O7)(OH)2•(H2O) Mono

09.BG.20 Okhotskite-(Mn++) Ca2(Mn,Mg)(Mn,Al,Fe)Si3O10(OH)4 A2/m 2/m

09.BG.20 Pumpellyite-(Fe+++) Ca2FeAl2(SiO4)(Si2O7)(OH,O)2•(H2O) A2/m 2/m

09.BG.20 Pumpellyite-(Mg) Ca2MgAl2(SiO4)(Si2O7)(OH)2•(H2O) A2/m 2/m

09.BG.20 Pumpellyite-(Mn++) Ca2(Mn,Mg)(Al,Mn,Fe)2(SiO4)(Si2O7(OH)2•(H2O) A2/m 2/m

09.BG.20 Shuiskite Ca2(Mg,Al)(Cr,Al)2(SiO4)(Si2O7)(OH)2•(H2O) A2/m 2/m

09.BG.20 Pumpellyite-(Al)! Ca2(Al,Fe,Mg)Al2(SiO4)(Si2O7)(OH,O)2•H2O A2/m 2/m

09.BG.20 Poppiite! Ca2(V,Fe,Mg)(V,Al)2(Si,Al)3(O,OH)14 C 2/m 2/m

Other Shuiskite Information

References:

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

See Also:

Links to other databases for Shuiskite :
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

Search for Shuiskite using:

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

Visit our Advertisers for Shuiskite :

A Bijoux Google Search for Shuiskite
Adam's Minerals Google Search for Shuiskite
Cape Minerals Google Search for Shuiskite
Dakota Matrix Minerals Google Search for Shuiskite
Excalibur Mineral Corp. Google Search for Shuiskite
Exceptional Minerals Google Search for Shuiskite
John Betts Fine Minerals Search for Shuiskite
McDougall Minerals Google Search for Shuiskite
Mineral News Website Link
Rock and Mineral Shows Google Search for Shuiskite
Weinrich Minerals, Inc. Google Search for Shuiskite

Ask about Shuiskite 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 Shuiskite Specimen Label here :

Shuiskite

Ca2(Mg,Al)(Cr,Al)2(SiO4)(Si2O7)(OH)2•(H2O)
Dana No: 58.02.02.09 Strunz No: 09.BG.20
Locality:

Notes: