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Karpinskite

Additional Functions

Collectors Summary

Color farblos, grünblau, hellblau
Streak color weiß
Hardness (Mohs) 2.75

Chemism

Chem­ical formula

(Mg,Ni)2Si2O5(OH)2

Chem­ical com­po­si­tion

Magnesium, Nickel, Silicium, Sauerstoff, Wasserstoff

Unit weight: 235.987264 u; Number of atoms in the formula: 13

Info

Empirical formula:

(Mg0.75Ni0.25)2Si2O5(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.85

2

15.38

1.0079470

2.0158940

Oxygen

O

47.46

7

53.85

15.9994300

111.9960100

Magnesium

Mg

15.45

1.5

11.54

24.3050600

36.4575900

Silicon

Si

23.80

2

15.38

28.0855300

56.1710600

Nickel

Ni

12.44

0.5

3.85

58.6934200

29.3467100

Anal­y­sis wt%

SiO2 : 47.55, Al2O3 : 0.48, MgO : 17.56, NiO : 21.12, CaO : 0.80, H2O : 10.00 (Ref: Kora Vyv.1956)

Strunz 9th edi­tion incl. updates

9.EC.60

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
C: Schichtsilikate (Phyllosilikate) mit Glimmer Tafeln, zusammengesetzt aus tetrahedralen oder octahedralen Netzen
60:Corrensit-Gruppe

Lapis Clas­sifica­tion

VIII/H.27-140

VIII: SILIKATE
H: Schichtsilikate
27: Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen; Serpentin-Gruppe

Clas­sifica­tion by Hölzel

9.EF.280

9: SILICATES
E: Phyllosilicates
F: Other Micas without H2O
2: Monoclinic Balangeroite-Group

IMA sta­tus

Status fragwürdig

Optical Properties

Color

farblos, grünblau, hellblau

Streak color

weiß

Diaphane­ity (Trans­parency)

durchscheinend

max. Birefrin­gence

0.024

Birefringence chart\! Karpinskite title=Birefringence chart Karpinskite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.570

RI value γ / ε

1.594

Ri mean

1.58~

2V angle

Biaxial (-) nd

Crystallography

Cell param­e­ters α

90°

Cell param­e­ters β

nd

Cell param­e­ters γ

90°

X-Ray Pow­der Diffrac­tion

11.00(100),
7.71(40),
4.76(40),
3.75(40),
3.32(20),
2.72(20),
2.546(30),
1.555(40)

XRD chart Karpinskite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Physical Properties

Hard­ness (Mohs)

2.75

VHN (Hard­ness Vick­ers)

68 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.53 - 2.63 / Durchschnittlich = 2.58

Preface

Name from

Alexander Karpinski (1846–1936), Geologe, geboren in Karpinsk

Author (Name, Year)

Rukavishnikova, 1956

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 492

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Dozyite

Mg7(Al,Fe3+,Cr)2[(OH)12|Al2Si4O15]

monoklin : m : Cm

9.EC.60

Kulkeite

Na0.35Mg8Al(AlSi7)O20(OH)10

9.EC.60

Tosudite

Na0.5(Al,Mg)6(Si,Al)8O18(OH)12·5H2O

9.EC.60

Aliettite

Ca0.2Mg6(Si,Al)8O20(OH)4·4H2O

9.EC.60

Rectorite

(Na,Ca)Al4(Si,Al)8O20(OH)4·2H2O

9.EC.60

Saliotite

Na0.5Li0.5Al3[(OH)5|AlSi3O10]

monoklin : 2/m : C2/m

9.EC.60

Corrensite

(Ca,Na,K)(Mg,Fe,Al)9(Si,Al)8O20(OH)10·nH2O

9.EC.60

'Karpinskite'

(Mg,Ni)2Si2O5(OH)2

9.EC.60

Hydrobiotite

K(Mg,Fe2+)6(Si,Al)8O20(OH)4·nH2O

monoklin : 2/m : C2/m

9.EC.60

Cortesognoite

CaV2Si2O7(OH)2·H2O

orthorhombisch : mmm : Cmcm

9.EC.60

Lunijianlaite

Li0.7Al6.2(Si7AlO20)(OH,O)10

9.EC.60

Brinrobertsite

(Na,K,Ca)0.3(Al,Fe,Mg)4(Si,Al)8O20(OH)4·3.5H2O

9.EC.60

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Antigorite

(Mg,Fe2+)3Si2O5(OH)4

monoklin : m : Cm

VIII/H.27-010

Lizardite

Mg3Si2O5(OH)4

monoklin : m : Cm

VIII/H.27-020

Chrysotile

Mg3Si2O5(OH)4

VIII/H.27-030

Caryopilite

Mn2+3Si2O5(OH)4

monoklin : m : Cm

VIII/H.27-055

Greenalite

(Fe2+,Fe3+)2-3Si2O5(OH)4

monoklin : m : Cm

VIII/H.27-060

Berthierine

(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4

monoklin : 2/m : C2/m

VIII/H.27-070

Fraipontite

(Zn,Al)3(Si,Al)2O5(OH)4

VIII/H.27-080

Dozyite

Mg7(Al,Fe3+,Cr)2[(OH)12|Al2Si4O15]

monoklin : m : Cm

VIII/H.27-095

Amesite

Mg2Al(SiAl)O5(OH)4

triklin : 1 : C1

VIII/H.27-100

Kellyite

(Mn2+,Mg,Al)3(Si,Al)2O5(OH)4

hexagonal : 6 : P63

VIII/H.27-110

Cronstedtite

Fe22+Fe3+(SiFe3+)O5(OH)4

trigonal : 3m : P31m

VIII/H.27-120

Guidottiite

Mn2Fe3+(SiFe3+)O5(OH)4

hexagonal : 6 : P63

VIII/H.27-130

'Karpinskite'

(Mg,Ni)2Si2O5(OH)2

VIII/H.27-140

Népouite

(Ni,Mg)3Si2O5(OH)4

orthorhombisch : mm2 : Ccm21

VIII/H.27-150

Pecoraite

Ni3Si2O5(OH)4

VIII/H.27-160

Brindleyite

(Ni,Mg,Fe2+)2Al(SiAl)O5(OH)4

VIII/H.27-170

Carlosturanite

(Mg,Fe2+,Ti)21(Si,Al)12O28(OH)34·H2O

monoklin : m : Cm

VIII/H.27-190

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Balangeroite

(Mg,Fe2+)21Si8O27(OH)20

monoklin : 2/m : P2/n

9.EF.200

Gageite

Mn2+21Si8O27(OH)20

monoklin : 2/m

9.EF.210

'Gageite-1A' (Pol.v. Gageite)

(Mn2+,Mg,Zn)21Si8O27(OH)20

triklin : 1 : P1

9.EF.211

Carlosturanite

(Mg,Fe2+,Ti)21(Si,Al)12O28(OH)34·H2O

monoklin : m : Cm

9.EF.240

'Karpinskite'

(Mg,Ni)2Si2O5(OH)2

9.EF.280

Other languages

German

Karpinskit

Spanish

Karpinskita

French

Karpinskite

English

Karpinskite

Alternative Name

German

Karpinskiit

Strunz, Tennyson: Mineralogische Tabellen. 8. Auflage. Geest & Portig, Leipzig 1982, S. 483 (jedoch mit L.L. Schilin, 1956 als Erstbeschreiber)

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Karpinskit
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English pages

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German pages

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