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Kristiansenite (Kristiansenit)

Pictures (2 Images total)

Kristiansenit
Views (File:
1275236637
): 1094
Kristiansenit
Bildbreite: 2,6 mm, Fundort: Seula Mine, Monte Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola, Piemont, Italien
Copyright: Luigi Chiappino; Contribution: thdun5
Location: Italien/Piemont (Piemonte), Region/Verbano-Cusio-Ossola, Provinz/Baveno/Oltrefiume/Monte Camoscio/Montecatini-Steinbruch (Seula Mine)
Mineral: Kristiansenite
Image: 1275236637
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Kristiansenit

Bildbreite: 2,6 mm, Fundort: Seula Mine, Monte Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola, Piemont, Italien

Copyright: Luigi Chiappino
Contribution: thdun5 2010-05-30
Locality: Montecatini-Steinbruch (Seula Mine) / Monte Camoscio / Oltrefiume / Baveno / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien
Kristiansenit
Views (File:
1275236669
): 662
Kristiansenit
Bildbreite: 4 mm, Fundort: Seula Mine, Monte Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola, Piemont, Italien
Copyright: Luigi Chiappino; Contribution: thdun5
Location: Italien/Piemont (Piemonte), Region/Verbano-Cusio-Ossola, Provinz/Baveno/Oltrefiume/Monte Camoscio/Montecatini-Steinbruch (Seula Mine)
Mineral: Kristiansenite
Image: 1275236669
Rating: 1 (votes: 1)
License: Usage for Mineralienatlas project only
Kristiansenit

Bildbreite: 4 mm, Fundort: Seula Mine, Monte Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola, Piemont, Italien

Copyright: Luigi Chiappino
Contribution: thdun5 2010-05-30
Locality: Montecatini-Steinbruch (Seula Mine) / Monte Camoscio / Oltrefiume / Baveno / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien

Collectors Summary

Color weiß, blassgelb
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 5.50 - 6.00
Fracture uneben
Crystal System triklin, C1
Morphology Prismatische Kristalle

Chemism

Chemical formula

Ca2Sc,Sn4+[Si2O6(OH)|Si2O7]

Chemical composition

Calcium, Scandium, Silicium, Zinn, Sauerstoff, Wasserstoff

Unit weight: 581.1654978 u; Number of atoms in the formula: 23

Info

Empirical formula:

Ca2Sc,Sn[Si2O6(OH)Si2O7]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.17

1

4.35

1.0079470

1.0079470

Oxygen

O

38.54

14

60.87

15.9994300

223.9920200

Silicon

Si

19.33

4

17.39

28.0855300

112.3421200

Calcium

Ca

13.79

2

8.70

40.0784000

80.1568000

Scandium

Sc

7.74

1

4.35

44.9559108

44.9559108

Tin

Sn

20.43

1

4.35

118.7107000

118.7107000

Strunz 9th edition incl. updates

9.BC.30

9: Silikate (Germanate)
B: Gruppensilikate (Sorosilikate)
C: Si2O7 Gruppen, ohne nicht-tetrahedrale Anionen; Kationen in oktahedraler [6] und/oder anderer Koordination
30:Kristiansenit-Gruppe

Lapis Classification

VIII/C.01-018

VIII: SILIKATE
C: Gruppensilikate
1: Gruppensilikate [Si2O7] 6-, ohne tetraederfremde Anionen

Classification by Hölzel

9.BB.540

9: SILICATES
B: Sorosilicates
B: Melilite-Group

Dana 8th edition

56.02.04.16

56: Sorosilicates Sorosilicate Si2O7 Groups and O, OH, F. and H2O
02: Sorosilicates Sorosilicate Si2O7 Groups and O, OH, F. and H2O with cations in [4] and/or >[4] coordination
04: Cuspidine - Wohlerite group

IMA status

anerkannt 2000

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Kristiansenite group

Optical Properties

Color

weiß, blassgelb

Streak color

weiß

Lustre

Glasglanz

RI value α / ω / n

1.74

Ri mean

1.740

2V angle

Biaxial

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

1

Space Group

C1

Cell parameters a (Å)

10.028

Cell parameters b (Å)

8.408

Cell parameters c (Å)

13.339

Cell parameters a/b or c/a

1.193

Cell parameters c/b

1.586

Cell parameters α

90.2

Cell parameters β

109.10

Cell parameters γ

90.0

Z

4

Volumne (ų)

1062.761

X-Ray Powder Diffraction

5.18(50),
3.898(10),
3.146(100),
3.089(60),
2.901(20),
2.595(30),
2.142(20),
1.433(10)

XRD chart Kristiansenite

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

Morphology

Prismatische Kristalle

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

5.50 - 6.00

VHN (Hardness Vickers)

630 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.64 (berechnet)

3.632 ( ρ calc. Mineralienatlas )

Fracture

uneben

Tenacity

spröde

Preface

Associations

Quarz, Albit

Rareness

extrem selten

Author (Name, Year)

Raade & Ferraris & Gula & Ivaldi & Bernhard, 2002

Collector information

Benannt nach Roy Kristiansen. IMA-Nr.: 2000-051

Additional Information

Neben der Typlokalität ein zweites Vorkommen aus den Steinbrüchen von Baveno, wo das Mineral in bis zu 3 mm blaßgelben Kristallen in hellblauem Albit vorkommt. (Sammlg. Civic Museum, Milano, Italien)

References

Mineralogy and Petrology 75 (2002), 89

IMA group assignments


 
 
Ca4Fe2+Sn3(Si2O7)2(Si2O6OH)2
triklin
C1

 
 
Ca2Sc,Sn4+[Si2O6(OH)|Si2O7]
triklin
C1

 
 
Ca2Fe3+Sn(Si2O7)(Si2O6OH)
triklin
C1

Refresh list

Actuality: 30. Nov 2022 - 09:51:25

Other languages

German

Kristiansenit

Spanish

Kristiansenita

English

Kristiansenite

French

Kristiansenite

Traditional Chinese

矽錫鈧鈣石

Simplified Chinese

硅锡钪钙石

CNMNC (IMA)-Number

IMA 2000-051

CNMNC symbol

Symbol

Kse

Locations with GPS information