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Caysichite-(Y) (Caysichit-(Y))

Pictures (4 Images total)

Caysichit-(Y) (braun) ummantelt von Tengerit-(Y) (weiß)
Views (File:
1241171844
): 2718
Caysichit-(Y) (braun) ummantelt von Tengerit-(Y) (weiß)
in Yttrofluorit, Quarz und Cleavelandit; Bildbreite: 15 mm; Fundort: Ploskaya, West-Keivy-Massiv, Kola-Halbinsel, Russland
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Keivy-Massiv/Western Keivy Massif/Ploskaya
Mineral: Caysichite-(Y), Tengerite-(Y)
Image: 1241171844
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Caysichit-(Y) (braun) ummantelt von Tengerit-(Y) (weiß)

in Yttrofluorit, Quarz und Cleavelandit; Bildbreite: 15 mm; Fundort: Ploskaya, West-Keivy-Massiv, Kola-Halbinsel, Russland
Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2009-05-01
Locality: Ploskaya / Western Keivy Massif / Keivy-Massiv / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Caysichit-(Y)
Views (File:
1701616206
): 48
Caysichit-(Y)
Caysichit-(Y), ohne Maßstab, FO: Evans Lou Mine, Lac Saint Pierre, Québec, Canada.
Copyright: Wikipedia-user: David Hospital; Contribution: oliverOliver
Location: Kanada/Québec, Provinz/Outaouais, Region/Les Collines-de-l'Outaouais/Val-des-Monts/Evans-Lou Mine
Mineral: Caysichite-(Y)
Image: 1701616206
License: Creative Commons - Attribution-ShareAlike 4.0 International  (CC BY-SA) V.4.0
Caysichit-(Y)

Caysichit-(Y), ohne Maßstab, FO: Evans Lou Mine, Lac Saint Pierre, Québec, Canada.
Copyright: Wikipedia-user: David Hospital
Contribution: oliverOliver 2023-12-03
Locality: Evans-Lou Mine / Val-des-Monts / Les Collines-de-l'Outaouais / Outaouais, Region / Québec, Provinz / Kanada
Caysichit-(Y)
Views (File:
1727458555
): 23
Caysichit-(Y)
Caysichit-(Y)-Kristalle auf Aegirin vom Mount Malosa in Malawi. Bildbreite etwa 7 mm.
Copyright: Klaus Schäfer; Contribution: Klaus Schäfer
Collection: Klaus Schäfer, Collection number: SyS-Cays-2-1-1
Location: Malawi/Southern Region/Zomba, Distrikt/Mount Malosa
Mineral: Caysichite-(Y)
Image: 1727458555
License: Usage for Mineralienatlas project only
Caysichit-(Y) (SNr: SyS-Cays-2-1-1)

Caysichit-(Y)-Kristalle auf Aegirin vom Mount Malosa in Malawi. Bildbreite etwa 7 mm.
Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2024-09-27
Locality: Mount Malosa / Zomba, Distrikt / Southern Region / Malawi
Caysichit-(Y)
Views (File:
1727458581
): 21
Caysichit-(Y)
Caysichit-(Y)-Kristalle auf Aegirin vom Mount Malosa in Malawi. Bildbreite etwa 7 mm.
Copyright: Klaus Schäfer; Contribution: Klaus Schäfer
Collection: Klaus Schäfer, Collection number: SyS-Cays-2-1-1
Location: Malawi/Southern Region/Zomba, Distrikt/Mount Malosa
Mineral: Caysichite-(Y)
Image: 1727458581
License: Usage for Mineralienatlas project only
Caysichit-(Y) (SNr: SyS-Cays-2-1-1)

Caysichit-(Y)-Kristalle auf Aegirin vom Mount Malosa in Malawi. Bildbreite etwa 7 mm.
Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2024-09-27
Locality: Mount Malosa / Zomba, Distrikt / Southern Region / Malawi

Collectors Summary

Color farblos, gelblichweiß
Streak color weiß
Hardness (Mohs) 4.5
Solubility ++ kalte verdünnte HCl
Crystal System orthorhombisch, Ccm21

Chemism

Chemical formula

Ca3Y4(Yb,Er)[OH|(CO3)6|Si8O20]·8H2O

Chemical composition

Calcium, Erbium, Silicium, Ytterbium, Yttrium, Kohlenstoff, Sauerstoff, Wasserstoff

Unit weight: 1713.312912 u; Number of atoms in the formula: 86

Info

Empirical formula:

Ca3Y4(Yb0.75Er0.25)[OH(CO3)6Si8O20]·8H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.00

17

19.77

1.0079470

17.1350990
Carbon

C

4.21

6

6.98

12.0107800

72.0646800
Oxygen

O

43.89

47

54.65

15.9994300

751.9732100
Silicon

Si

13.11

8

9.30

28.0855300

224.6842400
Calcium

Ca

7.02

3

3.49

40.0784000

120.2352000
Yttrium

Y

20.76

4

4.65

88.9058520

355.6234080
Erbium

Er

2.44

0.25

0.29

167.2593000

41.8148250
Ytterbium

Yb

7.57

0.75

0.87

173.0430000

129.7822500

Analysis wt%

CaO : 10.04, Y2O3 : 28.18, Gd2O3 : 0.51, Dy2O3 : 1.16, Ho2O3 : 0.66, Er2O3 : 1.84, Yb2O3 : 2.12, Lu2O3 : 0.42, SiO2 : 28.84, Al2O3 : 0.58, CO2 : 15.70, H2O : 8.60, Ln2O3 : 36.26 (Ref: Canadian Mineralogist 74)

Strunz 9th edition incl. updates

9.DJ.15

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
J:
15:

Lapis Classification

VIII/F.36-005

VIII: SILIKATE
F: Ketten- und Bandsilikate
36: Komplexe Kettenstrukturen (Zylinderketten u.a.)

Classification by Hölzel

9.DU.430

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
U: Chains to Phyllosilicates
4: Laplandite-Group

Dana 8th edition

70.01.02.02

70: Inosilicates Inosilicate Column or Tube Structures
01: Inosilicates Inosilicate Column or Tube Structures with columnar silicate units
02: Double crankshaft chains

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos, gelblichweiß

Streak color

weiß

max. Birefringence

0.035
Birefringence chart\! Caysichite-(Y) title=Birefringence chart Caysichite-(Y)

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

1.586

RI value β

1.614

RI value γ / ε

1.621

Ri mean

1.607

2V angle

Biaxial (-) 53°

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

36

Space Group

Ccm21

Cell parameters a (Å)

13.30

Cell parameters b (Å)

13.95

Cell parameters c (Å)

9.74

Cell parameters a/b or c/a

0.953

Cell parameters c/b

0.698

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volume (ų)

1807.111

X-Ray Powder Diffraction

6.93(100),
4.87(40),
4.38(60),
4.22(60),
3.481(60),
3.321(90),
3.201(30),
2.323(40)
XRD chart Caysichite-(Y)

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4.5

VHN (Hardness Vickers)

551

Density (g/cm³)

3.03 (gemessen)

3.149 ( ρ calc. Mineralienatlas )

Instability

++ kalte verdünnte HCl

(Co-)Type locality

(Co-)Type locality

Kanada/Québec, Provinz/Outaouais, Region/Les Collines-de-l'Outaouais/Val-des-Monts/Evans-Lou Mine

Preface

Author (Name, Year)

Hogarth & Chao & Plant & Steacy, 1974

References

Canadian Mineralogist 12 (1974), 293

Other languages

German

Caysichit-(Y)

Spanish

Caysichita-(Y)

English

Caysichite-(Y)

French

Caysichite-(Y)

Russian

Кайсикхит-(Y)

Traditional Chinese

碳矽鈣釔石

Simplified Chinese

碳硅钙钇石

CNMNC (IMA)-Number

IMA 1973-044

CNMNC symbol

Symbol

Cay-Y

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Bbmu7VZ5Ikqr9xYkuDO56w
GUID (Global unique identifier) EDAEB905-7956-4A22-ABF7-1624B833B9EB
Database ID 637