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Tritomite-(Y) (Tritomit-(Y))

Additional Functions

Collectors Summary

Color bräunlichschwarz
Hardness (Mohs) 3.50 - 4.00
Solubility +++ HCl
Crystal System hexagonal, P63/m

Chemism

Chemical formula

(Y,Ca,La,Fe2+)5(Si,B,Al)3(O,OH,F)13

Chemical composition

Aluminium, Calcium, Eisen, Lanthanum, Silicium, Yttrium, Bor, Fluor, Sauerstoff, Wasserstoff

Unit weight: 672.223946985 u; Number of atoms in the formula: 24.9

Info

Empirical formula:

(Y0.55Ca0.3La0.1Fe0.05)5(Si0.6B0.3Al0.1)3(O0.6(OH)0.3F0.1)13

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.58

3.9

15.66

1.0079470

3.9309933

Boron

B

1.45

0.9

3.61

10.8117000

9.7305300

Oxygen

O

27.85

11.7

46.99

15.9994300

187.1933310

Fluorine

F

3.67

1.3

5.22

18.9984033

24.6979242

Aluminium

Al

1.20

0.3

1.20

26.9815382

8.0944615

Silicon

Si

7.52

1.8

7.23

28.0855300

50.5539540

Calcium

Ca

8.94

1.5

6.02

40.0784000

60.1176000

Iron

Fe

2.08

0.25

1.00

55.8452000

13.9613000

Yttrium

Y

36.37

2.75

11.04

88.9058520

244.4910930

Lanthanum

La

10.33

0.5

2.01

138.9055200

69.4527600

Analysis wt%

Nb2O5 : 1.44, TiO2 : 0.47, SiO2 : 24.40, ThO2 : 2.30, La2O3 : 1.33, Ce2O3 : 7.37, Pr2O3 : 1.12, Nd2O3 : 5.41, Sm2O3 : 1.55, Gd2O3 : 2.46, Dy2O3 : 2.18, Ho2O3 : 0.42, Er2O3 : 1.48, Yb2O3 : 1.33, Y2O3 : 9.48, Al2O3 : 1.46, Fe2O3 : 3.57, CaO : 12.90, MgO : 0.40, MnO : 0.54, Na2O : 0.68, H2O : 8.96, F : 0.40, B2O3 : 7.00, Ln2O3 : 35.11 (Ref: Canadian Mineralogist 73)

Strunz 9th edition incl. updates

9.AH.25

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
H: Insel(Neso)silikate mit CO3, SO4, PO4, etc.
25:Britholith-Gruppe

Lapis Classification

VIII/B.33-030

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen
33: Kationen mit Koordinationszahlen zwischen [8] und [12]; Beryllium- und Bor-Inselsilikate

Classification by Hölzel

8.BO.860

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
O: Apatite Supergroup
8: Phosphate or Boro Silico Apatites - Britholites

Dana 8th edition

54.02.05.02

54: Nesosilicates Nesosilicate Borosilicates and Some Beryllosilicates
02: Nesosilicates Nesosilicate Borosilicates and Some Beryllosilicates with B in [4] coordination
05: Tritomite group

IMA status

Mit Anerkennung der CNMNC umbenannt

IMA Classification

IMA Classification

Apatite Supergroup  ⇒ Britholite group

Optical Properties

Color

bräunlichschwarz

RI value α / ω / n

1.713

RI value β

metam.

Ri mean

1.713

2V angle

i metam.

Crystallography

Crystal System

hexagonal

Class (H-M)

6/m

Space Group number

176

Space Group

P63/m

Cell parameters a (Å)

9.35

Cell parameters b (Å)

-

Cell parameters c (Å)

6.88

Cell parameters a/b or c/a

0.736

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

2

Volumne (ų)

520.886

X-Ray Powder Diffraction

3.16(50),
2.83(100),
2.73(50),
1.96(40),
1.93(40),
1.85(70),
1.76(50),
1.11(50)

XRD chart Tritomite-(Y)

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

3.50 - 4.00

VHN (Hardness Vickers)

390 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.81 (gemessen)

4.286 ( ρ calc. Mineralienatlas )

Instability

+++ HCl

Preface

Author (Name, Year)

Frondel, 1961

References

American Mineralogist 51 (1966), 152

IMA group assignments



 
 
 
Ca2(Ce,Ca)3(SiO4,PO4)3 (OH,F)
hexagonal
P63/m

 
 
 
(Y,Ca)5(SiO4,PO4)3(OH,F)
monoklin
P21

 
 
 
(Ce,Ca)5(SiO4)3F
hexagonal
P63/m

 
 
 
(Y,Ca,Ln)5[(Si,P)O4]3F
hexagonal
P63/m

 
 
 
(Ca,REE)5[(Si,P)O4]3F
hexagonal
P63/m

 
 
 
(Ce,Ca)5(SiO4,BO4)3(OH,O)
amorph
 

 
 
 
Ce5(SiO4,BO4)3(OH,O)
hexagonal
P63/m

 
 
 
(Y,Ca,La,Fe2+)5(Si,B,Al)3(O,OH,F)13
hexagonal
P63/m

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Actuality: 18. Sep 2019 - 05:09:53

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

Britholite-(Ce)

Ca2(Ce,Ca)3(SiO4,PO4)3 (OH,F)

hexagonal : 6/m : P63/m

9.AH.25

Britholite-(Y)

(Y,Ca)5(SiO4,PO4)3(OH,F)

monoklin : 2 : P21

9.AH.25

Chlorellestadite

Ca5(SiO4)1.5(SO4)1.5Cl

hexagonal : 6/m : P63/m

9.AH.25

'Ellestadite group'

Ca5(SiO4,PO4,SO4)3(F,OH,Cl)

9.AH.25

Fluorbritholite-(Ce)

(Ce,Ca)5(SiO4)3F

hexagonal : 6/m : P63/m

9.AH.25

Fluorbritholite-(Y)

(Y,Ca,Ln)5[(Si,P)O4]3F

hexagonal : 6/m : P63/m

9.AH.25

Fluorcalciobritholite

(Ca,REE)5[(Si,P)O4]3F

hexagonal : 6/m : P63/m

9.AH.25

Fluorellestadite

Ca5(SiO4,PO4,SO4)3(F,OH,Cl)

hexagonal : 6/m : P63/m

9.AH.25

Hydroxylellestadite

Ca10(SiO4)3(SO4)3(OH,Cl,F)2

monoklin : 2, 2/m : P21, P21/m

9.AH.25

Tritomite-(Ce)

Ce5(SiO4,BO4)3(OH,O)

hexagonal : 6/m : P63/m

9.AH.25

'Tritomite-(Y)'

(Y,Ca,La,Fe2+)5(Si,B,Al)3(O,OH,F)13

hexagonal : 6/m : P63/m

9.AH.25

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

Melanocerite-(Ce)

(Ce,Ca)5(SiO4,BO4)3(OH,O)

amorph

VIII/B.33-010

Byzantievite

Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O22[(OH),F]43(H2O)

trigonal : 3 : R3

VIII/B.33-015

Okanoganite-(Y)

(Na,Ca)3(Y,Ce)12Si6B2O27F14

trigonal : 3m : R3m

VIII/B.33-020

'Vicanite'

VIII/B.33-025

Proshchenkoite-(Y)

(Y,REE,Ca,Na,Mn)15Fe2+Ca(P,Si)Si6B3(O,F)48

trigonal : 3m : R3m

VIII/B.33-026

Hundholmenite-(Y)

(Y,REE,Ca,Na)15(Al,Fe3+)CaxAs3+1-x(Si,As5+)Si6B3(O,F)48

trigonal : 3m : R3m

VIII/B.33-028

'Tritomite-(Y)'

(Y,Ca,La,Fe2+)5(Si,B,Al)3(O,OH,F)13

hexagonal : 6/m : P63/m

VIII/B.33-030

Tritomite-(Ce)

Ce5(SiO4,BO4)3(OH,O)

hexagonal : 6/m : P63/m

VIII/B.33-040

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

Britholite-(Y)

(Y,Ca)5(SiO4,PO4)3(OH,F)

monoklin : 2 : P21

8.BO.800

Britholite-(Ce)

Ca2(Ce,Ca)3(SiO4,PO4)3 (OH,F)

hexagonal : 6/m : P63/m

8.BO.803

Fluorbritholite-(Y)

(Y,Ca,Ln)5[(Si,P)O4]3F

hexagonal : 6/m : P63/m

8.BO.810

Fluorbritholite-(Ce)

(Ce,Ca)5(SiO4)3F

hexagonal : 6/m : P63/m

8.BO.813

Fluorcalciobritholite

(Ca,REE)5[(Si,P)O4]3F

hexagonal : 6/m : P63/m

8.BO.820

'Tritomite-(Y)'

(Y,Ca,La,Fe2+)5(Si,B,Al)3(O,OH,F)13

hexagonal : 6/m : P63/m

8.BO.860

Tritomite-(Ce)

Ce5(SiO4,BO4)3(OH,O)

hexagonal : 6/m : P63/m

8.BO.863

Melanocerite-(Ce)

(Ce,Ca)5(SiO4,BO4)3(OH,O)

amorph

8.BO.864

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Datolite

CaBSiO4(OH)

monoklin : 2/m : P21/c

54.02.01a.01

Hingganite-(Ce)

Ce2Be2(SiO4)2(OH)2

monoklin : 2/m : P21/a

54.02.01a.02

'Hingganite-(Y)'

(Y,Yb,Er)BeSiO4(OH)

monoklin : 2/m : P21/c

54.02.01a.03

Hingganite-(Yb)

(Yb,Y)BeSiO4(OH)

monoklin : 2/m : P21/a

54.02.01a.04

'Bakerite'

Ca4B4(BO4)(SiO4)3(OH)3·H2O

monoklin : 2/m : P21/c

54.02.01b.01

Gadolinite-(Ce)

Ce2Fe2+Be2O2(SiO4)2

monoklin : 2/m : P21/c

54.02.01b.02

Gadolinite-(Y)

Y2Fe2+Be2Si2O10

monoklin : 2/m : P21/a

54.02.01b.03

Homilite

Ca2(Fe2+,Mg)B2Si2O10

monoklin : 2/m : P21/a

54.02.01b.05

Minasgeraisite-(Y)

CaY2Be2Si2O10

monoklin : 2/m : P21/a

54.02.01b.06

Hellandite-(Y)

(Ca,REE)4Y2Al(Be,Li)2-xB4Si4O22(OH)2

monoklin : 2/m : P2/a

54.02.02.01

Hellandite-(Ce)

(Ca,REE)4Ce2Al(Be,Li)2-xB4Si4O22(OH)2

monoklin : 2/m : P2/a

54.02.02.04

Mottanaite-(Ce)

Ca4(Ce,REE)Σ2Al(Be1.50.5)Σ2[B4Si4O22]O2

monoklin : 2/m : P2/a

54.02.02.05

Ciprianiite

Ca4[(Th,U),Ca]Σ2Al(Be0.51.5)Σ2[B4Si4O22](OH)2

monoklin : 2/m : P2/a

54.02.02.06

Cappelenite-(Y)

Ba(Y,Ce)6Si3B6O24F2

trigonal : 3 : P3

54.02.03.01

Stillwellite-(Ce)

(Ce,La,Ca)BSiO5

trigonal : 3 : P31

54.02.03.02

Okanoganite-(Y)

(Na,Ca)3(Y,Ce)12Si6B2O27F14

trigonal : 3m : R3m

54.02.04.03

Tritomite-(Ce)

Ce5(SiO4,BO4)3(OH,O)

hexagonal : 6/m : P63/m

54.02.05.01

'Tritomite-(Y)'

(Y,Ca,La,Fe2+)5(Si,B,Al)3(O,OH,F)13

hexagonal : 6/m : P63/m

54.02.05.02

Melanocerite-(Ce)

(Ce,Ca)5(SiO4,BO4)3(OH,O)

amorph

54.02.05.03

Other languages

German

Tritomit-(Y)

Spanish

Tritomita-(Y)

English

Tritomite-(Y)

French

Tritomite-(Y)

Russian

Тритомит-(Y)

Japanese

イットリウムトリトマイト

Alternative Name

German

Spencit

Spanish

Spencita

Spencite

German

Tritomit

Spanish

Tritomita

Tritomite

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