Karpinskite Mineral Data

Karpinskite Mineral Data
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General Karpinskite Information

Help on Chemical Formula: Chemical Formula: (Mg,Ni)2Si2O5(OH)2 (?)
Help on Composition: Composition: Molecular Weight = 253.18 gm
   Magnesium   9.60 %  Mg   15.92 % MgO
   Silicon    22.19 %  Si   47.46 % SiO2
   Nickel     23.18 %  Ni   29.50 % NiO
   Hydrogen    0.80 %  H     7.12 % H2O
   Oxygen     44.24 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NiMgSi2O5(OH)2
Help on Environment: Environment: An inadequately described mineral.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1956
Help on Locality: Locality: Mizhne Tagilsk massif, Ural Mountains, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Alexander Petrovich Karpinsky (1846-1936), Russian geologist and president of the Russian Academy of Sciences.
Help on Name Pronunciation: Name Pronunciation: Karpinskite + Pronunciation Say KARPINSKITE
 

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Karpinskite Crystallography
Help on Crystal System: Crystal System: MonoclinicSpace Group: Unk
 

Physical Properties of Karpinskite

Help on Cleavage: Cleavage: {???} Perfect
Help on Color: Color: Colorless, Greenish blue, Light blue.
Help on Density: Density: 2.53 - 2.63, Average = 2.58
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luster: Luster: Greasy (Oily)
Help on Streak: Streak: white
 

Optical Properties of Karpinskite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.072 (Fair) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.2215,KC= 0.2067
Ncalc = 1.52 - 1.54
Help on Optical Data: Optical Data: Biaxial (-), a=1.553-1.57, g=1.569-1.594, bire=0.0160-0.0240
Help on Pleochroism (x): Pleochroism (x): none.
Help on Pleochroism (y): Pleochroism (y): none.
Help on Pleochroism (z): Pleochroism (z): none.
 

Calculated Properties of Karpinskite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.57 gm/cc
note: Specific Gravity of Karpinskite =2.58 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEKarpinskite = 10.13 barns/electron
U=PEKarpinskite x rElectron Density= 26.01 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Karpinskite is Not Radioactive
 

Karpinskite Classification
Help on Dana Class: Dana Class: 78.05.06.01 (78)Unclassified silicates
  (78.05)possible phyllosilicates
  (78.05.06)Dana Group
 
78.05.06.01 Karpinskite (Mg,Ni)2Si2O5(OH)2(?) Unk Mono
Help on Strunz Class: Strunz Class: 09.EC.60 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
 
09.EC.60 Aliettite [Mg3Si4O10(OH)2](Ca0.5,Na)0.33(Al,Mg,Fe)2-3(Si,Al)4O10(OH)2•n(H2O) Unk Mono
 
09.EC.60 Dozyite (Mg7Al2)(Si4Al2)O15(OH)12 Cm m
 
09.EC.60 Corrensite (Ca,Na,K)(Mg,Fe,Al)9(Si,Al)8O20(OH)10•n(H2O) Unk Ortho
 
09.EC.60 Kulkeite Na0.35Mg8AlSi7O20(OH)10 Unk Mono
 
09.EC.60 Karpinskite (Mg,Ni)2Si2O5(OH)2(?) Unk Mono
 
09.EC.60 Illite* (K,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,(H2O)] C 2/m 2/m
 
09.EC.60 Hydrobiotite [K(Mg,Fe)3(Al,Fe)Si3O10(OH,F)2]•[(Mg,Fe,Al)3(Si,Al)4O10(OH)2•4(H2O)] C 2/m 2/m
 
09.EC.60 Lunijianlaite LiAl6(Si7Al)O20(OH)10 Unk Mono
 
09.EC.60 Rectorite (Na,Ca)Al4(Si,Al)8O20(OH)4•2(H2O) Unk Mono
 
09.EC.60 Saliotite Na0.5Li0.5Al3AlSi3O10(OH)5 C 2/m 2/m
 
09.EC.60 Tosudite Na0,5(Al,Mg)6(Si,Al)8O18(OH)12•5(H2O) Unk Ortho
 
09.EC.60 Brinrobertsite! (Na,K,Ca)x(Al,Fe,Mg)4(Si,Al)8O20(OH)4•3.54(H2O)[x=0.35,n=3.54] pseudo 2/m 2/m
 

Other Karpinskite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Karpinskite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info

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Karpinskite

(Mg,Ni)2Si2O5(OH)2 (?)
Dana No: 78.05.06.01 Strunz No: 09.EC.60
Locality:

 

Notes: